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                                    SECURITY  AGREEMENT  dated  as of  March  6,
                           1998, among TEREX CORPORATION, a Delaware corporation
                           ("Terex"),   each   subsidiary  of  Terex  listed  on
                           Schedule I hereto (each such subsidiary  individually
                           a  "Subsidiary   Guarantor"  and  collectively,   the
                           "Subsidiary  Guarantors";  the Subsidiary  Guarantors
                           and Terex are referred to collectively  herein as the
                           "Grantors")  and CREDIT SUISSE FIRST  BOSTON,  a bank
                           organized  under  the  laws  of  Switzerland,  acting
                           through its New York branch,  ("CSFB"), as collateral
                           agent (in such capacity,  the "Collateral Agent") for
                           the Secured Parties (as defined herein).


         Reference is made to (a) the Credit Agreement dated as of March 6, 1998
(as amended,  supplemented or otherwise  modified from time to time, the "Credit
Agreement"), among Terex, Terex Equipment Limited, a company organized under the
laws of  Scotland,  P.P.M.  S.A.,  a  company  organized  under  the laws of the
Republic of France,  Unit Rig (Australia)  Pty. Ltd., a company  organized under
the laws of New South Wales,  and P.P.M.  Sp.A., a company  organized  under the
laws of the  Republic  of Italy,  the Lenders (as defined in Article I thereto),
the Issuing Banks (as defined in Article I thereto) and CSFB, as  administrative
agent and as collateral agent for the Lenders, (b) the Guarantee Agreement dated
as of March 6, 1998 (as amended, supplemented or otherwise modified from time to
time, the "Subsidiary  Guarantee Agreement") among the Subsidiary Guarantors and
the Collateral  Agent and (c) the Guarantee  Agreement dated as of March 6, 1998
(as amended,  supplemented  or otherwise  modified from time to time, the "Terex
Guarantee Agreement") between Terex and the Collateral Agent.  Capitalized terms
used herein and not defined herein shall have meanings assigned to such terms in
the Credit Agreement.

         The Lenders have agreed to make Loans to the  Borrowers and the Issuing
Banks have agreed to issue  Letters of Credit for the account of the  Borrowers,
pursuant to, and upon the terms and subject to the conditions  specified in, the
Credit  Agreement.  The Subsidiary  Guarantors  have agreed to guarantee,  among
other things, all the obligations of the Borrowers under the Credit Agreement in
accordance  with the  terms of the  Subsidiary  Guarantee  Agreement.  Terex has
agreed to guarantee,  among other things,  all the obligations of the Subsidiary
Borrowers  under the Credit  Agreement in accordance with the terms of the Terex
Guarantee  Agreement.  The  obligations  of the Lenders to make Loans and of the
Issuing  Banks to issue  Letters of Credit are  conditioned  upon,  among  other
things,  the  execution and delivery by the Grantors of an agreement in the form
hereof to secure (a) the due and  punctual  payment by the  Borrowers of (i) the
principal of and premium,  if any, and  interest  (including  interest  accruing
during the pendency of any bankruptcy, insolvency, receivership or other similar
proceeding,  regardless of whether  allowed or allowable in such  proceeding) on
the Loans,  when and as due, whether at maturity,  by acceleration,  upon one or
more dates set for  prepayment  or otherwise,  (ii) each payment  required to be
made by any  Borrower  under the  Credit  Agreement  in respect of any Letter of
Credit,  when and as due,  including  payments  in respect of  reimbursement  of
disbursements,  interest  thereon and obligations to provide cash collateral and
(iii) all other  monetary  obligations,  including  fees,  costs,  expenses  and
indemnities,  whether primary, secondary, direct, contingent, fixed or otherwise
(including monetary  obligations incurred during the pendency of any bankruptcy,
insolvency,  receivership  or other  similar  proceeding,  regardless of whether
allowed or  allowable  in such  proceeding),  of the  Borrowers  to the  Secured
Parties under the Credit Agreement and the other Loan Documents, (b) the due and
punctual performance of all covenants,  agreements,  obligations and liabilities
of the  Borrowers  under or pursuant to the Credit  Agreement and the other Loan
Documents,  (c)  the  due  and  punctual  payment  and  performance  of all  the
covenants,  agreements,  obligations  and  liabilities  of each other Loan Party
under or pursuant to this Agreement and the other Loan Documents and (d) the due
and punctual  payment and  performance of all obligations of the Borrowers under
each Hedging  Agreement entered into with any counterparty that was a Lender (or
an Affiliate thereof) at the time such Hedging Agreement was entered into (all


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the  monetary and other  obligations  referred to in the  preceding  clauses (a)
through (d) being referred to collectively as the "Obligations").

         Accordingly, the Grantors and the Collateral Agent, on behalf of itself
and each Secured  Party (and each of their  respective  successors  or assigns),
hereby agree as follows:


                                    ARTICLE I

                                   Definitions

         SECTION  1.01.  Definition  of Terms Used  Herein.  Unless the  context
otherwise requires, all capitalized terms used but not defined herein shall have
the meanings set forth in the Credit Agreement.

         SECTION 1.02.  Definition of Certain Terms Used Herein. As used herein,
the following terms shall have the following meanings:

         "Account  Debtor"  shall  mean  any  person  who is or who  may  become
obligated to any Grantor under, with respect to or on account of an Account.

         "Accounts"  shall mean any and all  right,  title and  interest  of any
Grantor to payment for goods and  services  sold or leased,  including  any such
right evidenced by chattel paper,  whether due or to become due,  whether or not
it has been earned by  performance,  and whether  now or  hereafter  acquired or
arising in the future,  including  accounts  receivable  from  Affiliates of the
Grantors.

         "Accounts  Receivable" shall mean all Accounts and all right, title and
interest in any returned goods, together with all rights, titles, securities and
guarantees  with respect  thereto,  including any rights to stoppage in transit,
replevin, reclamation and resales, and all related security interests, liens and
pledges, whether voluntary or involuntary,  in each case whether now existing or
owned or hereafter arising or acquired.

         "Collateral" shall mean all (a) Accounts Receivable, (b) Documents, (c)
Equipment,  (d) General Intangibles,  (e) Inventory, (f) cash and cash accounts,
(g) Investment Property and (h) Proceeds; provided that the Collateral shall not
include  more  than 65% of the  issued  and  outstanding  shares of stock of any
Foreign Subsidiary.

         "Commodity  Account"  shall mean an account  maintained  by a Commodity
Intermediary  in which a  Commodity  Contract  is  carried  out for a  Commodity
Customer.

         "Commodity Contract" shall mean a commodity futures contract, an option
on a commodity futures contract,  a commodity option or any other contract that,
in each case,  is (a) traded on or subject to the rules of a board of trade that
has been  designated  as a contract  market for such a contract  pursuant to the
federal  commodities  laws or (b) traded on a foreign  commodity board of trade,
exchange or market, and is carried on the books of a Commodity  Intermediary for
a Commodity Customer.

         "Commodity   Customer"  shall  mean  a  person  for  whom  a  Commodity
Intermediary carries a Commodity Contract on its books.

         "Commodity Intermediary" shall mean (a) a person who is registered as a
futures commission  merchant under the federal  commodities laws or (b) a person
who in the ordinary  course of its  business  provides  clearance or  settlement
services  for a board of trade that has been  designated  as a  contract  market
pursuant to federal commodities laws.


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         "Copyright License" shall mean any written agreement,  now or hereafter
in effect,  granting  any right to any third  party under any  Copyright  now or
hereafter owned by any Grantor or which such Grantor  otherwise has the right to
license,  or  granting  any right to such  Grantor  under any  Copyright  now or
hereafter  owned by any third party,  and all rights of such  Grantor  under any
such agreement.

         "Copyrights"  shall mean all of the  following  now owned or  hereafter
acquired by any  Grantor:  (a) all  copyright  rights in any work subject to the
copyright  laws of the United  States or any other  country,  whether as author,
assignee,  transferee or otherwise,  and (b) all registrations  and applications
for  registration  of any such  copyright  in the  United  States  or any  other
country,  including registrations,  recordings,  supplemental  registrations and
pending  applications for  registration in the United States  Copyright  Office,
including those listed on Schedule II.

         "Credit  Agreement" shall have the meaning assigned to such term in the
preliminary statement of this Agreement.

         "Documents" shall mean all instruments,  files, records,  ledger sheets
and documents covering or relating to any of the Collateral.

         "Entitlement Holder" shall mean a person identified in the records of a
Securities  Intermediary as the person having a Security Entitlement against the
Securities  Intermediary.  If a person acquires a Security Entitlement by virtue
of Section 8-501(b)(2) or (3) of the Uniform Commercial Code as in effect in the
relevant jurisdiction, such person is the Entitlement Holder.

         "Equipment"  shall mean all equipment,  furniture and furnishings,  and
all tangible personal property similar to any of the foregoing, including tools,
parts  and  supplies  of  every  kind  and  description,  and all  improvements,
accessions  or  appurtenances  thereto,  that are now or hereafter  owned by any
Grantor. The term Equipment shall include Fixtures.

         "Financial  Asset" shall mean (a) a Security,  (b) an  obligation  of a
person or a share, participation or other interest in a person or in property or
an enterprise of a person, which is, or is of a type, dealt with in or traded on
financial  markets,  or which is recognized in any area in which it is issued or
dealt  in as a  medium  for  investment  or (c) any  property  that is held by a
Securities  Intermediary  for  another  person in a  Securities  Account  if the
Securities  Intermediary  has  expressly  agreed with the other  person that the
property  is to be treated as a Financial  Asset under  Article 8 of the Uniform
Commercial  Code as in  effect  in the  relevant  jurisdiction.  As the  context
requires,  the term Financial Asset shall mean either the interest itself or the
means by which a person's claim to it is evidenced,  including a certificated or
uncertificated  Security,  a certificate  representing  a Security or a Security
Entitlement.

         "Fixtures"  shall  mean all items of  Equipment,  whether  now owned or
hereafter  acquired,  of any Grantor that become so related to  particular  real
estate  that an interest  in them  arises  under any real estate law  applicable
thereto.

         "General  Intangibles"  shall  mean all  choses in action and causes of
action and all other assignable  intangible  personal property of any Grantor of
every kind and nature  (other than Accounts  Receivable)  now owned or hereafter
acquired  by any  Grantor,  including  Indebtedness  of Terex or any  Subsidiary
whether  evidenced by a promissory  note or not, but excluding the  intercompany
demand  notes  listed on  Schedule  VI,  corporate  or other  business  records,
indemnification  claims, contract rights (including rights under leases, whether
entered  into as lessor or lessee,  Hedging  Agreements  and other  agreements),
Intellectual Property,  goodwill,  registrations,  franchises, tax refund claims
and any letter of credit, guarantee,  claim, security interest or other security
held by or granted to any Grantor to secure  payment by an Account Debtor of any
of the Accounts Receivable.


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         "Intellectual   Property"  shall  mean  all  intellectual  and  similar
property of any Grantor of every kind and nature now owned or hereafter acquired
by any Grantor, including inventions,  designs, Patents,  Copyrights,  Licenses,
Trademarks,  trade secrets,  confidential or proprietary  technical and business
information,  know-how,  show-how  or other data or  information,  software  and
databases and all  embodiments or fixations  thereof and related  documentation,
registrations and franchises, and all additions, improvements and accessions to,
and  books  and  records  describing  or used  in  connection  with,  any of the
foregoing.

         "Inventory"  shall mean all goods of any Grantor,  whether now owned or
hereafter  acquired,  held for sale or lease, or furnished or to be furnished by
any Grantor under contracts of service,  or consumed in any Grantor's  business,
including raw materials,  intermediates,  work in process,  packaging materials,
finished goods, semi-finished inventory, scrap inventory, manufacturing supplies
and spare parts, and all such goods that have been returned to or repossessed by
or on behalf of any Grantor.

         "Investment  Property" shall mean all Securities (whether  certificated
or  uncertificated),   Security  Entitlements,  Securities  Accounts,  Commodity
Contracts and Commodity Accounts of any Grantor,  whether now owned or hereafter
acquired by any Grantor.

         "License" shall mean any Patent License,  Trademark License,  Copyright
License  or other  license  or  sublicense  to  which  any  Grantor  is a party,
including  those listed on Schedule III (other than those license  agreements in
existence  on the date  hereof  and  listed on  Schedule  III and those  license
agreements  entered  into after the date hereof,  which by their terms  prohibit
assignment  or a grant  of a  security  interest  by such  Grantor  as  licensee
thereunder).

         "Lockbox  System"  shall  have the  meaning  assigned  to such  term in
Section 5.01.

         "Obligations"  shall  have the  meaning  assigned  to such  term in the
preliminary statement of this Agreement.

         "Patent License" shall mean any written agreement,  now or hereafter in
effect, granting to any third party any right to make, use or sell any invention
on which a Patent,  now or  hereafter  owned by any Grantor or which any Grantor
otherwise has the right to license, is in existence,  or granting to any Grantor
any right to make, use or sell any invention on which a Patent, now or hereafter
owned by any third party,  is in existence,  and all rights of any Grantor under
any such agreement.

         "Patents"  shall  mean all of the  following  now  owned  or  hereafter
acquired  by any  Grantor:  (a) all letters  patent of the United  States or any
other country,  all registrations and recordings  thereof,  and all applications
for  letters  patent  of the  United  States  or any  other  country,  including
registrations,  recordings and pending  applications in the United States Patent
and  Trademark  Office or any similar  offices in any other  country,  including
those listed on Schedule  IV, and (b) all  reissues,  continuations,  divisions,
continuations-in-part,  renewals  or  extensions  thereof,  and  the  inventions
disclosed or claimed  therein,  including the right to make, use and/or sell the
inventions disclosed or claimed therein.

         "Perfection  Certificate" shall mean a certificate in a form previously
approved by the Collateral Agent,  completed and supplemented with the schedules
and attachments  contemplated  thereby, and duly executed by a Financial Officer
and the chief legal officer of Terex.

         "Proceeds"  shall  mean  any  consideration  received  from  the  sale,
exchange,  license,  lease or other  disposition  of any asset or property  that
constitutes Collateral, any value received as a consequence of the possession of
any  Collateral  and any payment  received  from any insurer or other  person or
entity as a result of the destruction, loss, theft, damage or other involuntary


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conversion  of  whatever  nature  of any  asset or  property  which  constitutes
Collateral,  and shall include (a) all cash and negotiable  instruments received
by or held on behalf of the Collateral Agent pursuant to the Lockbox System, (b)
any claim of any  Grantor  against any third party for (and the right to sue and
recover for and the rights to damages or profits  due or accrued  arising out of
or in connection  with) (i) past,  present or future  infringement of any Patent
now or hereafter owned by any Grantor, or licensed under a Patent License,  (ii)
past,  present  or future  infringement  or  dilution  of any  Trademark  now or
hereafter  owned by any Grantor or licensed under a Trademark  License or injury
to the goodwill  associated with or symbolized by any Trademark now or hereafter
owned by any Grantor,  (iii) past,  present or future  breach of any License and
(iv) past,  present or future  infringement  of any  Copyright  now or hereafter
owned by any Grantor or licensed  under a Copyright  License and (c) any and all
other amounts from time to time paid or payable under or in connection  with any
of the Collateral.

         "Secured  Parties" shall mean (a) the Lenders,  (b) the  Administrative
Agent, (c) the Collateral Agent, (d) the Issuing Banks, (e) each counterparty to
an Interest  Rate  Protection  Agreement  entered into with any Borrower if such
counterparty  was a Lender at the time the Hedging  Agreement  was entered into,
(f) the  beneficiaries  of each  indemnification  obligation  undertaken  by any
Grantor  under any Loan Document and (g) the  successors  and assigns of each of
the foregoing.

         "Securities"  shall mean any  obligations  of an issuer or any  shares,
participations  or other  interests in an issuer or in property or an enterprise
of an issuer which (a) are represented by a certificate  representing a security
in bearer or registered  form,  or the transfer of which may be registered  upon
books maintained for that purpose by or on behalf of the issuer,  (b) are one of
a class or series or by its terms is divisible into a class or series of shares,
participations, interests or obligations and (c)(i) are, or are of a type, dealt
with or traded on  securities  exchanges  or  securities  markets  or (ii) are a
medium for  investment  and by their  terms  expressly  provide  that they are a
security  governed by Article 8 of the Uniform  Commercial  Code as in effect in
the relevant jurisdiction.

         "Securities  Account" shall mean an account to which a Financial  Asset
is or may be credited in  accordance  with an  agreement  under which the person
maintaining  the account  undertakes to treat the person for whom the account is
maintained as entitled to exercise rights that comprise the Financial Asset.

         "Security Entitlements" shall mean the rights and property interests of
an Entitlement Holder with respect to a Financial Asset.

         "Security  Interest"  shall have the  meaning  assigned to such term in
Section 2.01.

         "Securities  Intermediary" shall mean (a) a clearing corporation or (b)
a  person,  including  a bank or  broker,  that in the  ordinary  course  of its
business  maintains  securities  accounts  for  others  and is  acting  in  that
capacity.

         "Sub-Agent"  shall  mean  a  financial  institution  which  shall  have
delivered to the Collateral Agent an executed Lockbox and Depository Agreement.

         "Trademark License" shall mean any written agreement,  now or hereafter
in effect,  granting  to any third party any right to use any  Trademark  now or
hereafter  owned by any Grantor or which any Grantor  otherwise has the right to
license,  or  granting  to any  Grantor  any right to use any  Trademark  now or
hereafter owned by any third party, and all rights of any Grantor under any such
agreement.

         "Trademarks"  shall mean all of the  following  now owned or  hereafter
acquired  by any  Grantor:  (a) all  trademarks,  service  marks,  trade  names,
corporate names, company names, business names, fictitious business names,



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trade styles, trade dress, logos, other source or business identifiers,  designs
and general  intangibles  of like nature,  now existing or hereafter  adopted or
acquired,  all  registrations and recordings  thereof,  and all registration and
recording  applications filed in connection therewith,  including  registrations
and registration  applications in the United States Patent and Trademark Office,
any State of the United  States or any similar  offices in any other  country or
any political  subdivision  thereof,  and all  extensions  or renewals  thereof,
including those listed on Schedule V, (b) all goodwill  associated  therewith or
symbolized thereby and (c) all other assets,  rights and interests that uniquely
reflect or embody such goodwill.

         SECTION  1.03.  Rules of  Interpretation.  The rules of  interpretation
specified in Section 1.02 of the Credit  Agreement  shall be  applicable to this
Agreement.


                                   ARTICLE II

                                Security Interest

         SECTION  2.01.  Security  Interest.  As  security  for the  payment  or
performance, as the case may be, in full of the Obligations, each Grantor hereby
bargains, sells, conveys, assigns, sets over, mortgages,  pledges,  hypothecates
and transfers to the  Collateral  Agent,  its  successors  and assigns,  for the
ratable  benefit of the Secured  Parties,  and hereby  grants to the  Collateral
Agent,  its  successors  and  assigns,  for the  ratable  benefit of the Secured
Parties, a security interest in, all of such Grantor's right, title and interest
in, to and under the Collateral (the "Security Interest").  Without limiting the
foregoing,  the  Collateral  Agent  is  hereby  authorized  to file  one or more
financing  statements  (including  fixture  filings),  continuation  statements,
filings with the United  States  Patent and  Trademark  Office or United  States
Copyright  Office (or any  successor  office or any similar  office in any other
country)  or  other  documents  for  the  purpose  of  perfecting,   confirming,
continuing,  enforcing  or  protecting  the  Security  Interest  granted by each
Grantor,  without the  signature of any  Grantor,  and naming any Grantor or the
Grantors as debtors and the Collateral Agent as secured party.

         SECTION 2.02. No  Assumption  of  Liability.  The Security  Interest is
granted as security only and shall not subject the Collateral Agent or any other
Secured Party to, or in any way alter or modify,  any obligation or liability of
any Grantor with respect to or arising out of the Collateral.


                                   ARTICLE III

                         Representations and Warranties

         The  Grantors  jointly  and  severally  represent  and  warrant  to the
Collateral Agent and the Secured Parties that:

         SECTION  3.01.  Title and  Authority.  Each  Grantor has good and valid
rights in and title to the Collateral  with respect to which it has purported to
grant a Security  Interest  hereunder and has full corporate power and authority
to grant to the  Collateral  Agent  the  Security  Interest  in such  Collateral
pursuant  hereto  and  to  execute,  deliver  and  perform  its  obligations  in
accordance with the terms of this Agreement,  without the consent or approval of
any other person other (i) than any consent or approval  which has been obtained
and (ii) any consent or approval the failure of which to obtain could not impair
or adversely affect the Security Interests intended to be granted hereunder.

         SECTION 3.02.  Filings.  (a) The Perfection  Certificate  has been duly
prepared,  completed  and  executed  and the  information  set forth  therein is
correct and complete. Fully executed Uniform Commercial Code financing


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statements  (including  fixture  filings,  as applicable)  or other  appropriate
filings,  recordings or registrations containing a description of the Collateral
have been  delivered  to the  Collateral  Agent for  filing in each  appropriate
governmental,  municipal or other office, which are all the filings,  recordings
and  registrations  (other than filings required to be made in the United States
Patent and Trademark  Office and the United States  Copyright Office in order to
perfect the Security Interest in Collateral consisting of United States Patents,
Trademarks and  Copyrights)  that are necessary to publish notice of and protect
the validity of and to establish a legal,  valid and perfected security interest
in  favor of the  Collateral  Agent  (for the  ratable  benefit  of the  Secured
Parties) in respect of all Collateral  (other than Collateral in transit with an
aggregate fair market value not to exceed  $20,000,000 at any one time) in which
the Security  Interest may be perfected by filing,  recording or registration in
the United States (or any political subdivision thereof) and its territories and
possessions,   and  no  further  or  subsequent  filing,  refiling,   recording,
rerecording,   registration   or   reregistration   is  necessary  in  any  such
jurisdiction, except as provided under applicable law with respect to the filing
of continuation statements.

         (b) Each Grantor  represents and warrants that fully executed  security
agreements  in the form hereof and  containing a description  of all  Collateral
consisting of  Intellectual  Property with respect to United States  Patents and
United States  registered  Trademarks  (and  Trademarks  for which United States
registration  applications are pending) and United States registered Copyrights,
have been delivered to the  Collateral  Agent for recording by the United States
Patent and Trademark  Office and the United States  Copyright Office pursuant to
35 U.S.C.  ss. 261, 15 U.S.C.  ss. 1060 or 17 U.S.C. ss. 205 and the regulations
thereunder, as applicable, and otherwise as may be required pursuant to the laws
of any other necessary jurisdiction, to protect the validity of and to establish
a legal,  valid and perfected security interest in favor of the Collateral Agent
(for the ratable  benefit of the Secured  Parties) in respect of all  Collateral
consisting of Patents,  Trademarks and  Copyrights in which a security  interest
may be perfected by filing,  recording or  registration in the United States (or
any political  subdivision  thereof) and its territories and possessions,  or in
any other necessary jurisdiction, and no further or subsequent filing, refiling,
recording, rerecording,  registration or reregistration is necessary (other than
such actions as are  necessary to perfect the Security  Interest with respect to
any Collateral consisting of Patents, Trademarks and Copyrights (or registration
or application for  registration  thereof)  acquired or developed after the date
hereof).

         SECTION  3.03.  Validity of Security  Interest.  The Security  Interest
constitutes  (a) a legal  and  valid  security  interest  in all the  Collateral
securing  the payment and  performance  of the  Obligations,  (b) subject to the
filings  described in Section 3.02 above, a perfected  security  interest in all
Collateral in which a security interest may be perfected by filing, recording or
registering a financing statement or analogous document in the United States (or
any political  subdivision thereof) and its territories and possessions pursuant
to the Uniform Commercial Code or other applicable law in such jurisdictions and
(c) a security  interest  that shall be perfected in all  Collateral  in which a
security  interest  may be  perfected  upon the  receipt and  recording  of this
Agreement  with the United  States  Patent and  Trademark  Office and the United
States  Copyright  Office,   as  applicable,   within  the  three  month  period
(commencing  as of the date hereof)  pursuant to 35 U.S.C.  ss. 261 or 15 U.S.C.
ss. 1060 or the one month period  (commencing as of the date hereof) pursuant to
17 U.S.C.  ss. 205 and otherwise as may be required  pursuant to the laws of any
other necessary jurisdiction. The Security Interest is and shall be prior to any
other Lien on any of the Collateral,  other than Liens expressly permitted to be
prior to the Security Interest pursuant to Section 6.02 of the Credit Agreement.

         SECTION 3.04.  Absence of Other Liens.  The  Collateral is owned by the
Grantors  free and  clear of any Lien,  except  for  Liens  expressly  permitted
pursuant to Section 6.02 of the Credit  Agreement.  The Grantor has not filed or
consented to the filing of (a) any  financing  statement  or analogous  document
under the Uniform  Commercial  Code or any other  applicable  laws  covering any
Collateral  except for  financing  statements or analogous  documents  filed for
precautionary  reasons  relating to  operating  leases,  consignments  and other
similar items, in each case (i) in the ordinary course of business, and (ii) as


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permitted  under the Credit  Agreement,  (b) any assignment in which any Grantor
assigns any Collateral or any security agreement or similar instrument  covering
any Collateral with the United States Patent and Trademark  Office or the United
States  Copyright  Office or (c) any assignment in which any Grantor assigns any
Collateral  or  any  security  agreement  or  similar  instrument  covering  any
Collateral  with any foreign  governmental,  municipal  or other  office,  which
financing  statement or analogous  document,  assignment,  security agreement or
similar instrument is still in effect, except, in each case, for Liens expressly
permitted pursuant to Section 6.02 of the Credit Agreement.


                                   ARTICLE IV

                                    Covenants

         SECTION 4.01. Change of Name; Location of Collateral; Records; Place of
Business.  (a) Each Grantor agrees  promptly to notify the  Collateral  Agent in
writing  of any change  (i) in its  corporate  name or in any trade name used to
identify  it in  the  conduct  of  its  business  or in  the  ownership  of  its
properties,  (ii) in the location of its chief executive  office,  its principal
place of business, any office in which it maintains books or records relating to
Collateral owned by it or any office or facility at which Collateral owned by it
is located  (including  the  establishment  of any such new office or facility),
(iii) in its  identity or corporate  structure  or (iv) in its Federal  Taxpayer
Identification  Number.  Each Grantor  agrees not to effect or permit any change
referred to in the  preceding  sentence  unless all filings have been made under
the Uniform  Commercial  Code or  otherwise  that are  required in order for the
Collateral Agent to continue at all times following such change to have a valid,
legal and perfected first priority security interest in all the Collateral. Each
Grantor agrees promptly to notify the Collateral  Agent if any material  portion
of the Collateral owned or held by such Grantor is damaged or destroyed.

         (b) Each Grantor agrees to maintain,  at its own cost and expense, such
complete and accurate  records with respect to the Collateral  owned by it as is
consistent  with its current  practices and in accordance  with such prudent and
standard  practices used in industries  that are the same as or similar to those
in  which  such  Grantor  is  engaged,  but in any  event  to  include  complete
accounting records indicating all payments and proceeds received with respect to
any part of the Collateral,  and, at such time or times as the Collateral  Agent
may reasonably request,  promptly to prepare and deliver to the Collateral Agent
a duly certified  schedule or schedules in form and detail  satisfactory  to the
Collateral  Agent  showing  the  identity,  amount and  location  of any and all
Collateral.

         SECTION  4.02.  Periodic  Certification.  Each  year,  at the  time  of
delivery of annual  financial  statements  with respect to the preceding  fiscal
year  pursuant to Section 5.04 of the Credit  Agreement,  Terex shall deliver to
the Collateral Agent a certificate executed by a Financial Officer and the chief
legal officer of Terex (a) setting forth the  information  required  pursuant to
Section 2 of the  Perfection  Certificate  or confirming  that there has been no
change in such information since the date of such certificate or the date of the
most recent  certificate  delivered  pursuant to Section 4.02 and (b) certifying
that  all  Uniform  Commercial  Code  financing  statements  (including  fixture
filings,   as  applicable)   or  other   appropriate   filings,   recordings  or
registrations,   including  all  refilings,  rerecordings  and  reregistrations,
containing a  description  of the  Collateral  have been filed of record in each
governmental,  municipal  or  other  appropriate  office  in  each  jurisdiction
identified  pursuant to clause (a) above to the extent  necessary to protect and
perfect the Security  Interest for a period of not less than 18 months after the
date  of  such  certificate  (except  as  noted  therein  with  respect  to  any
continuation  statements  to be filed  within  such  period).  Each  certificate
delivered pursuant to this Section 4.02 shall identify in the format of Schedule
II, III, IV or V, as applicable, all Intellectual Property of any Grantor in


                                       9


existence  on the  date  thereof  and  not  then  listed  on such  Schedules  or
previously so identified to the Collateral Agent.

         SECTION 4.03.  Protection of Security.  Each Grantor shall,  at its own
cost and expense, take any and all commercially  reasonable actions necessary to
defend  title to the  Collateral  against all persons and to defend the Security
Interest of the  Collateral  Agent in the  Collateral  and the priority  thereof
against any Lien not expressly  permitted pursuant to Section 6.02 of the Credit
Agreement.

         SECTION  4.04.  Further  Assurances.  Each Grantor  agrees,  at its own
expense,  to execute,  acknowledge,  deliver and cause to be duly filed all such
further  instruments  and documents and take all such actions as the  Collateral
Agent may from time to time  reasonably  request  to  better  assure,  preserve,
protect and perfect the Security  Interest  and the rights and remedies  created
hereby,  including the payment of any fees and taxes required in connection with
the  execution  and  delivery of this  Agreement,  the  granting of the Security
Interest and the filing of any financing statements  (including fixture filings)
or other  documents in connection  herewith or therewith.  If any amount payable
under or in connection with any of the Collateral  shall be or become  evidenced
by any promissory  note or other  instrument,  such note or instrument  shall be
immediately  pledged and delivered to the Collateral  Agent,  duly endorsed in a
manner satisfactory to the Collateral Agent.

         Without  limiting the generality of the foregoing,  each Grantor hereby
authorizes the Collateral Agent, with prompt notice thereof to the Grantors,  to
supplement this Agreement by  supplementing  Schedule II, III, IV or V hereto or
adding  additional  schedules hereto to specifically  identify any asset or item
that may  constitute  Copyrights,  Licenses,  Patents or  Trademarks;  provided,
however, that any Grantor shall have the right, exercisable within 10 days after
it has been notified by the Collateral Agent of the specific  identification  of
such Collateral,  to advise the Collateral Agent in writing of any inaccuracy of
the  representations  and warranties made by such Grantor hereunder with respect
to such  Collateral.  Each  Grantor  agrees that it will use its best efforts to
take such action as shall be  necessary  in order that all  representations  and
warranties  hereunder  shall be true and correct in all material  respects  with
respect to such Collateral within 30 days after the date it has been notified by
the Collateral Agent of the specific identification of such Collateral.

         SECTION 4.05.  Inspection and  Verification.  The Collateral  Agent and
such persons as the  Collateral  Agent may reasonably  designate  shall have the
right at the Grantors' own cost and expense, to inspect,  during normal business
hours and on reasonable notice, the Collateral, all records related thereto (and
to make  extracts and copies from such records) and the premises  upon which any
of the Collateral is located (no more than two such inspections  being permitted
annually  under this Section 4.05 unless an Event of Default shall have occurred
and be  continuing)  to discuss the  Grantors'  affairs with the officers of the
Grantors  and  their  independent  accountants  and to verify  under  reasonable
procedures the validity,  amount, quality, quantity, value, condition and status
of, or any other matter relating to, the Collateral,  including,  in the case of
Accounts or  Collateral in the  possession  of any third  person,  by contacting
Account  Debtors or the third person  possessing such Collateral for the purpose
of making such a  verification.  The  Collateral  Agent shall have the  absolute
right to share any  information  it gains from such  inspection or  verification
with any Secured Party (it being understood that any such  information  shall be
deemed to be  "Information"  subject to the  provisions  of Section  9.17 of the
Credit Agreement).

         SECTION 4.06. Taxes; Encumbrances.  At its option at any time after ten
days notice to the applicable  Grantor (or, to the extent the  Collateral  Agent
deems it necessary  to act prior the end of such ten day notice  period in order
to preserve the Collateral,  the applicable  Grantor's  rights to and use of the
Collateral or the Security  Interest granted herein,  any shorter notice period)
the Collateral Agent may discharge past due taxes,  assessments,  charges, fees,
Liens,  security interests or other encumbrances at any time levied or placed on
the Collateral and not permitted pursuant to Section 6.02 of the Credit


                                       10


Agreement, and may pay for the maintenance and preservation of the Collateral to
the extent any Grantor  fails to do so as required  by the Credit  Agreement  or
this Agreement,  and each Grantor jointly and severally  agrees to reimburse the
Collateral  Agent on demand for any payment made or any expense  incurred by the
Collateral  Agent pursuant to the foregoing  authorization;  provided,  however,
that nothing in this Section 4.06 shall be  interpreted  as excusing any Grantor
from the performance  of, or imposing any obligation on the Collateral  Agent or
any Secured  Party to cure or perform,  any  covenants or other  promises of any
Grantor with  respect to taxes,  assessments,  charges,  fees,  liens,  security
interests or other  encumbrances  and  maintenance as set forth herein or in the
other Loan Documents.

         SECTION  4.07.  Assignment  of  Security  Interest.  If at any time any
Grantor shall take a security  interest in any property of an Account  Debtor or
any other person to secure payment and  performance of an Account,  such Grantor
shall promptly assign (to the extent permitted to do so) such security  interest
to the Collateral Agent;  provided that such Grantor shall make all commercially
reasonable  efforts to obtain consent to assign such property as security to the
Collateral  Agent pursuant to this Agreement.  Such assignment need not be filed
of public  record  unless  necessary  to continue  the  perfected  status of the
security  interest against  creditors of and transferees from the Account Debtor
or other person granting the security interest.

         SECTION 4.08.  Continuing  Obligations  of the  Grantors.  Each Grantor
shall remain liable to observe and perform all the conditions and obligations to
be observed and  performed by it under each  contract,  agreement or  instrument
relating to the  Collateral,  all in  accordance  with the terms and  conditions
thereof,  and each Grantor  jointly and  severally  agrees to indemnify and hold
harmless the Collateral  Agent and the Secured  Parties from and against any and
all liability for such performance.

         SECTION 4.09. Use and  Disposition of Collateral.  None of the Grantors
shall make or permit to be made an assignment,  pledge or  hypothecation  of the
Collateral or shall grant any other Lien in respect of the Collateral, except as
expressly  permitted  by  Section  6.02  of the  Credit  Agreement.  None of the
Grantors shall make or permit to be made any transfer of the Collateral and each
Grantor shall remain at all times in possession of the  Collateral  owned by it,
except that (a)  Inventory and Accounts  Receivable  may be sold in the ordinary
course of business  and (b) unless and until the  Collateral  Agent shall notify
the Grantors that an Event of Default shall have occurred and be continuing  and
that during the continuance thereof the Grantors shall not sell, convey,  lease,
assign,  transfer or otherwise  dispose of any  Collateral  (which notice may be
given by telephone if promptly  confirmed in writing),  the Grantors may use and
dispose  of the  Collateral  in any  lawful  manner  not  inconsistent  with the
provisions of this Agreement,  the Credit  Agreement or any other Loan Document.
Without  limiting the generality of the  foregoing,  each Grantor agrees that it
shall not  permit  any  Inventory  to be in the  possession  or  control  of any
warehouseman,  bailee,  agent or processor at any time unless such warehouseman,
bailee, agent or processor shall have been notified of the Security Interest and
such Grantor shall have taken all  commercially  reasonable  steps  necessary to
obtain the  agreement  from such  warehouseman,  bailee,  agent or  processor in
writing  to  hold  the  Inventory  subject  to the  Security  Interest  and  the
instructions  of the Collateral  Agent and to waive and release any Lien held by
it with  respect  to such  Inventory,  whether  arising by  operation  of law or
otherwise.

         SECTION  4.10.  Limitation  on  Modification  of Accounts.  None of the
Grantors  will,  without the  Collateral  Agent's prior written  consent,  which
consent shall not be unreasonably  withheld,  grant any extension of the time of
payment of any of the Accounts  Receivable,  compromise,  compound or settle the
same for less than the full  amount  thereof,  release,  wholly or  partly,  any
person liable for the payment thereof or allow any credit or discount whatsoever
thereon, other than extensions,  credits, discounts,  compromises or settlements
granted or made in the  ordinary  course of  business  and  consistent  with its
current and past practices and in accordance with such commercially prudent and


                                       11

 
standard  practices used in industries  that are the same as or similar to those
in which such Grantor is engaged.

         SECTION  4.11.  Insurance.  The Grantors,  at their own expense,  shall
maintain or cause to be maintained insurance covering physical loss or damage to
the  Inventory  and  Equipment  in  accordance  with  Section 5.02 of the Credit
Agreement.   Each  Grantor  irrevocably  makes,  constitutes  and  appoints  the
Collateral  Agent  (and all  officers,  employees  or agents  designated  by the
Collateral Agent) as such Grantor's true and lawful agent (and attorney-in-fact)
for the  purpose,  during the  continuance  of an Event of  Default,  of making,
settling  and  adjusting  claims in  respect of  Collateral  under  policies  of
insurance, endorsing the name of such Grantor on any check, draft, instrument or
other item of payment for the  proceeds of such  policies of  insurance  and for
making all determinations and decisions with respect thereto.  In the event that
any  Grantor  at any time or times  shall fail to obtain or main tain any of the
policies  of  insurance  required  hereby or to pay any premium in whole or part
relating  thereto,  the Collateral  Agent may,  without waiving or releasing any
obligation  or liability of the Grantors  hereunder or any Event of Default,  in
its sole discretion, obtain and maintain such policies of insurance and pay such
premium and take any other actions with respect thereto as the Collateral  Agent
deems  advisable.  All sums disbursed by the Collateral Agent in connection with
this Section 4.11, including reasonable  attorneys' fees, court costs,  expenses
and other  charges  relating  thereto,  shall be payable,  upon  demand,  by the
Grantors to the  Collateral  Agent and shall be additional  Obligations  secured
hereby.

         SECTION 4.12.  Legend.  Each Grantor  shall legend,  in form and manner
reasonably satisfactory to the Collateral Agent, its Accounts Receivable and its
books,   records  and  documents   evidencing  or  pertaining  thereto  with  an
appropriate  reference  to the fact  that  such  Accounts  Receivable  have been
assigned to the Collateral Agent for the benefit of the Secured Parties and that
the Collateral  Agent has a security  interest  therein.  Collateral Agent shall
provide Grantors with its legending requirements in writing.

         SECTION  4.13.  Covenants  Regarding  Patent,  Trademark  and Copyright
Collateral.  (a) Each Grantor agrees that it will not, nor will it permit any of
its licensees to, do any act, or omit to do any act, whereby any Patent which is
material to the conduct of such  Grantor's  business may become  invalidated  or
dedicated to the public,  and agrees that it shall continue to mark any products
covered by a Patent with the relevant  patent number as necessary and sufficient
to establish and preserve its maximum rights under applicable patent laws.

         (b) Each  Grantor  (either  itself  or  through  its  licensees  or its
sublicensees) will, for each Trademark material to the conduct of such Grantor's
business,  (i)  maintain  such  Trademark  in full  force free from any claim of
abandonment or invalidity for non-use, (ii) maintain the quality of products and
services offered under such Trademark,  (iii) display such Trademark with notice
of Federal or foreign  registration  to the extent  necessary and  sufficient to
establish  and preserve its maximum  rights  under  applicable  law and (iv) not
knowingly use or knowingly  permit the use of such Trademark in violation of any
third party rights.

         (c) Each Grantor  (either itself or through  licensees)  will, for each
work covered by a material Copyright,  continue to publish, reproduce,  display,
adopt and distribute the work with appropriate copyright notice as necessary and
sufficient  to  establish  and  preserve  its maximum  rights  under  applicable
copyright laws.

         (d) Each Grantor shall notify the  Collateral  Agent  immediately if it
knows or has reason to know that any Patent,  Trademark or Copyright material to
the conduct of its  business  may become  abandoned,  lost or  dedicated  to the
public,  or  of  any  adverse   determination  or  development   (including  the
institution of, or any such  determination  or development in, any proceeding in
the United States Patent and Trademark Office, United States Copyright Office or
any court or similar office of any country)  regarding such Grantor's  ownership
of any Patent, Trademark or Copyright, its right to register the same, or to


                                       12


keep and maintain the same.

         (e) In no event shall any Grantor,  either itself or through any agent,
employee, licensee or designee, file an application for any Patent, Trademark or
Copyright  (or for the  registration  of any  Trademark or  Copyright)  with the
United States Patent and Trademark Office, United States Copyright Office or any
office or agency in any  political  subdivision  of the United  States or in any
other country or any political  subdivision thereof,  unless it promptly informs
the Collateral Agent,  and, upon request of the Collateral  Agent,  executes and
delivers  any and all  agreements,  instruments,  documents  and  papers  as the
Collateral  Agent may  reasonably  request to evidence  the  Collateral  Agent's
security  interest in such  Patent,  Trademark  or  Copyright,  and each Grantor
hereby appoints the Collateral Agent as its attorney-in-fact to execute and file
such writings for the foregoing purposes, all acts of such attorney being hereby
ratified  and  confirmed;  such  power,  being  coupled  with  an  interest,  is
irrevocable.

         (f) Each Grantor will take all commercially  reasonable necessary steps
that are consistent with the practice in any proceeding before the United States
Patent and Trademark  Office,  United States  Copyright  Office or any office or
agency in any political subdivision of the United States or in any other country
or any  political  subdivision  thereof,  to maintain  and pursue each  material
application relating to the Patents, Trademarks and/or Copyrights (and to obtain
the relevant grant or registration)  and to maintain each issued Patent and each
registration of the Trademarks and Copyrights that is material to the conduct of
any Grantor's  business,  including  timely filings of applications for renewal,
affidavits of use,  affidavits of  incontestability  and payment of  maintenance
fees, and, if consistent with good business  judgment,  to initiate  opposition,
interference and cancelation proceedings against third parties.

         (g) In the  event  that any  Grantor  has  reason to  believe  that any
Collateral  consisting  of a Patent,  Trademark  or  Copyright  material  to the
conduct  of any  Grantor's  business  has  been  or is  about  to be  infringed,
misappropriated  or diluted by a third party, such Grantor promptly shall notify
the  Collateral  Agent and shall,  if consistent  with good  business  judgment,
promptly sue for infringement,  misappropriation  or dilution and to recover any
and all damages for such infringement,  misappropriation  or dilution,  and take
such other actions as are appropriate  under the  circumstances  to protect such
Collateral.

         (h) Upon and  during  the  continuance  of an  Event of  Default,  each
Grantor shall use all  commercially  reasonable  efforts to obtain all requisite
consents or approvals by the licensor of each Copyright License,  Patent License
or Trademark  License to effect the assignment of all of such  Grantor's  right,
title and interest thereunder to the Collateral Agent or its designee.


                                    ARTICLE V

                                   Collections

         SECTION  5.01.  Lockbox  System.  Terex  shall  maintain  its  existing
lock-box  arrangements  for the benefit of the Secured  Parties with UMB Bank of
St.  Louis,  N.A.  ("UMB")  pursuant to the  Lockbox  Operating  and  Procedural
Agreement,  dated as of April 7, 1997, among Terex, certain of its Subsidiaries,
UMB and BankBoston, N.A. (formerly The First National Bank of Boston), or at the
request of CSFB, shall enter into a substantially  similar arrangement with CSFB
(any such arrangement the "Lockbox System").

         SECTION  5.02.  Power of  Attorney.  Each  Grantor  irrevocably  makes,
constitutes  and appoints the Collateral  Agent (and all officers,  employees or
agents  designated by the  Collateral  Agent) as such  Grantor's true and lawful
agent and attorney-in-fact, and in such capacity the Collateral Agent shall have
the right, with power of substitution for each Grantor and in each Grantor's


                                       13
                                                     

name or  otherwise,  for the use and  benefit  of the  Collateral  Agent and the
Secured  Parties,  upon the occurrence and during the continuance of an Event of
Default  (a) to  receive,  endorse,  assign  and/or  deliver  any and all notes,
acceptances, checks, drafts, money orders or other evidences of payment relating
to the Collateral or any part thereof; (b) to demand,  collect,  receive payment
of,  give  receipt  for and give  discharges  and  releases of all or any of the
Collateral; (c) to sign the name of any Grantor on any invoice or bill of lading
relating  to any of  the  Collateral;  (d) to  send  verifications  of  Accounts
Receivable  to any Account  Debtor;  (e) to commence and  prosecute  any and all
suits,  actions  or  proceedings  at law or in equity in any court of  competent
jurisdiction to collect or otherwise  realize on all or any of the Collateral or
to enforce any rights in respect of any Collateral;  (f) to settle,  compromise,
compound,  adjust or defend any actions, suits or proceedings relating to all or
any of the  Collateral;  (g) to  notify,  or to require  any  Grantor to notify,
Account  Debtors to make payment  directly to the Collateral  Agent;  and (h) to
use,  sell,  assign,  transfer,  pledge,  make any agreement  with respect to or
otherwise deal with all or any of the  Collateral,  and to do all other acts and
things  necessary  to carry out the  purposes  of this  Agreement,  as fully and
completely  as  though  the  Collateral  Agent  were the  absolute  owner of the
Collateral for all purposes;  provided,  however,  that nothing herein contained
shall be  construed  as  requiring or  obligating  the  Collateral  Agent or any
Secured Party to make any  commitment or to make any inquiry as to the nature or
sufficiency  of any  payment  received  by the  Collateral  Agent or any Secured
Party,  or to present or file any claim or  notice,  or to take any action  with
respect to the Collateral or any part thereof or the moneys due or to become due
in respect  thereof or any  property  covered  thereby,  and no action  taken or
omitted to be taken by the Collateral Agent or any Secured Party with respect to
the Collateral or any part thereof shall give rise to any defense,  counterclaim
or  offset  in favor  of any  Grantor  or to any  claim or  action  against  the
Collateral  Agent or any Secured  Party.  It is  understood  and agreed that the
appointment of the  Collateral  Agent as the agent and  attorney-in-fact  of the
Grantors  for the  purposes  set forth above is coupled  with an interest and is
irrevocable.  The  provisions  of this  Section  shall in no event  relieve  any
Grantor of any of its  obligations  hereunder  or under any other Loan  Document
with respect to the  Collateral or any part thereof or impose any  obligation on
the Collateral  Agent or any Secured Party to proceed in any  particular  manner
with  respect to the  Collateral  or any part  thereof,  or in any way limit the
exercise by the  Collateral  Agent or any Secured  Party of any other or further
right  which it may have on the date of this  Agreement  or  hereafter,  whether
hereunder, under any other Loan Document, by law or otherwise.


                                   ARTICLE VI

                                    Remedies

         SECTION 6.01. Remedies upon Default. Upon the occurrence and during the
continuance of an Event of Default,  each Grantor agrees to deliver each item of
Collateral  to the  Collateral  Agent  on  demand,  and it is  agreed  that  the
Collateral  Agent  shall  have the  right  to take  any of or all the  following
actions at the same or  different  times:  (a) with  respect  to any  Collateral
consisting of Intellectual  Property,  on demand, to cause the Security Interest
to  become  an  assignment,  transfer  and  conveyance  of any  of or  all  such
Collateral by the applicable  Grantors to the Collateral Agent, or to license or
sublicense,  whether general,  special or otherwise, and whether on an exclusive
or non-exclusive  basis, any such Collateral  throughout the world on such terms
and conditions and in such manner as the Collateral Agent shall determine (other
than in violation of any then-existing licensing arrangements to the extent that
waivers  cannot be obtained),  and (b) with or without legal process and with or
without  prior  notice or demand  for  performance,  to take  possession  of the
Collateral  and without  liability for trespass to enter any premises  where the
Collateral  may be located for the purpose of taking  possession  of or removing
the  Collateral  and,  generally,  to exercise any and all rights  afforded to a
secured party under the Uniform Commercial Code or other applicable law. Without
limiting  the  generality  of  the  foregoing,  each  Grantor  agrees  that  the
Collateral Agent shall have the right, subject to the mandatory  requirements of
applicable law, to sell or otherwise dispose of all or any part of the


                                       14


Collateral,  at  public  or  private  sale or at any  broker's  board  or on any
securities  exchange,  for cash,  upon  credit  or for  future  delivery  as the
Collateral  Agent  shall  deem  appropriate.   The  Collateral  Agent  shall  be
authorized  at any such sale (if it deems it advisable to do so) to restrict the
prospective  bidders or purchasers to persons who will  represent and agree that
they are  purchasing the Collateral for their own account for investment and not
with a view to the  distribution or sale thereof,  and upon  consummation of any
such sale the  Collateral  Agent  shall have the right to assign,  transfer  and
deliver to the purchaser or purchasers thereof the Collateral so sold. Each such
purchaser at any such sale shall hold the property  sold  absolutely,  free from
any claim or right on the part of any Grantor,  and each Grantor  hereby  waives
(to the extent  permitted by law) all rights of  redemption,  stay and appraisal
which such  Grantor now has or may at any time in the future have under any rule
of law or statute now existing or hereafter enacted.

         The  Collateral  Agent shall give the Grantors 10 days' written  notice
(which each Grantor  agrees is  reasonable  notice within the meaning of Section
9-504(3) of the Uniform Commercial Code as in effect in the State of New York or
its equivalent in other  jurisdictions)  of the Collateral  Agent's intention to
make any sale of Collateral.  Such notice,  in the case of a public sale,  shall
state the time and place for such sale and,  in the case of a sale at a broker's
board or on a  securities  exchange,  shall state the board or exchange at which
such sale is to be made and the day on which the Collateral, or portion thereof,
will first be offered for sale at such board or  exchange.  Any such public sale
shall be held at such time or times within  ordinary  business hours and at such
place or places as the Collateral Agent may fix and state in the notice (if any)
of such sale. At any such sale, the Collateral,  or portion thereof,  to be sold
may be sold in one lot as an entirety or in separate parcels,  as the Collateral
Agent may (in its sole and absolute discretion) determine.  The Collateral Agent
shall not be obligated to make any sale of any Collateral if it shall  determine
not to do so,  regardless  of the fact that  notice  of sale of such  Collateral
shall have been given.  The Collateral Agent may, without notice or publication,
adjourn any public or private sale or cause the same to be  adjourned  from time
to time by announcement at the time and place fixed for sale, and such sale may,
without further  notice,  be made at the time and place to which the same was so
adjourned.  In case  any sale of all or any  part of the  Collateral  is made on
credit or for future  delivery,  the  Collateral  so sold may be retained by the
Collateral  Agent until the sale price is paid by the  purchaser  or  purchasers
thereof, but the Collateral Agent shall not incur any liability in case any such
purchaser or purchasers shall fail to take up and pay for the Collateral so sold
and, in case of any such failure,  such  Collateral  may be sold again upon like
notice.  At any public (or, to the extent  permitted by law,  private) sale made
pursuant to this Section,  any Secured  Party may bid for or purchase,  free (to
the extent  permitted by law) from any right of redemption,  stay,  valuation or
appraisal on the part of any Grantor  (all said rights being also hereby  waived
and released to the extent permitted by law), the Collateral or any part thereof
offered for sale and may make payment on account thereof by using any claim then
due and payable to such Secured  Party from any Grantor as a credit  against the
purchase  price,  and such Secured Party may, upon  compliance with the terms of
sale, hold,  retain and dispose of such property without further  accountability
to any Grantor  therefor.  For purposes hereof, a written  agreement to purchase
the  Collateral or any portion  thereof shall be treated as a sale thereof;  the
Collateral Agent shall be free to carry out such sale pursuant to such agreement
and no Grantor shall be entitled to the return of the  Collateral or any portion
thereof  subject  thereto,  notwithstanding  the fact that after the  Collateral
Agent shall have entered into such an agreement all Events of Default shall have
been remedied and the Obligations  paid in full. As an alternative to exercising
the power of sale herein  conferred upon it, the Collateral Agent may proceed by
a suit or suits at law or in equity to foreclose  this Agreement and to sell the
Collateral or any portion thereof pursuant to a judgment or decree of a court or
courts  having  competent   jurisdiction  or  pursuant  to  a  proceeding  by  a
court-appointed receiver.


                                       15


         SECTION 6.02. Application of Proceeds. The Collateral Agent shall apply
the  proceeds  of any  collection  or  sale  of the  Collateral,  as well as any
Collateral consisting of cash, as follows:

                  FIRST,  to the payment of all  reasonable  costs and  expenses
         incurred by the  Administrative  Agent or the Collateral  Agent (in its
         capacity  as such  hereunder  or under  any  other  Loan  Document)  in
         connection with such collection or sale or otherwise in connection with
         this Agreement or any of the Obligations, including all court costs and
         the fees and expenses of its agents and legal counsel, the repayment of
         all advances made by the Collateral  Agent hereunder or under any other
         Loan  Document on behalf of any Grantor and any other costs or expenses
         incurred  in  connection  with the  exercise  of any  right  or  remedy
         hereunder or under any other Loan Document;

                  SECOND, to the payment in full of the Obligations (the amounts
         so applied to be  distributed  among the  Secured  Parties  pro rata in
         accordance with the amounts of the Obligations owed to them on the date
         of any such distribution); and

                  THIRD, to the Grantors,  their successors or assigns,  or as a
         court of competent jurisdiction may otherwise direct.

The  Collateral  Agent  shall  have  absolute  discretion  as  to  the  time  of
application  of any such  proceeds,  moneys or balances in accordance  with this
Agreement.  Upon any sale of the Collateral by the Collateral  Agent  (including
pursuant to a power of sale granted by statute or under a judicial  proceeding),
the receipt of the Collateral Agent or of the officer making the sale shall be a
sufficient  discharge to the purchaser or  purchasers of the  Collateral so sold
and  such  purchaser  or  purchasers  shall  not  be  obligated  to  see  to the
application of any part of the purchase money paid over to the Collateral  Agent
or such officer or be answerable in any way for the misapplication thereof.

         SECTION 6.03.  Grant of License to Use Intellectual  Property.  For the
purpose of enabling the Collateral  Agent to exercise  rights and remedies under
this Article at such time as the Collateral Agent shall be lawfully  entitled to
exercise  such rights and remedies,  to the extent  permitted to do so (and each
Grantor shall make all commercially  reasonable efforts to obtain the consent to
license all  Intellectual  Property  referred to below to the  Collateral  Agent
pursuant to this Section  6.03) each  Grantor  hereby  grants to the  Collateral
Agent an  irrevocable,  non-exclusive  license  (exercisable  without payment of
royalty or other  compensation  to the Grantors) to use,  license or sub-license
any of the Collateral consisting of Intellectual Property now owned or hereafter
acquired by such Grantor, and wherever the same may be located, and including in
such license  reasonable  access to all media in which any of the licensed items
may be recorded or stored and to all computer software and programs used for the
compilation or printout thereof. The use of such license by the Collateral Agent
shall be exercised,  at the option of the Collateral  Agent, upon the occurrence
and during the  continuation of an Event of Default;  provided that any license,
sub-license  or  other  transaction  entered  into by the  Collateral  Agent  in
accordance  herewith  shall be binding  upon the  Grantors  notwithstanding  any
subsequent cure of an Event of Default.


                                       16


                                   ARTICLE VII

                                  Miscellaneous

         SECTION 7.01.  Notices.  All communications and notices hereunder shall
(except as  otherwise  expressly  permitted  herein) be in writing  and given as
provided in Section 9.01 of the Credit Agreement. All communications and notices
hereunder to any Subsidiary Guarantor shall be given to it in care of Terex.

         SECTION 7.02. Security Interest Absolute.  All rights of the Collateral
Agent  hereunder,  the  Security  Interest and all  obligations  of the Grantors
hereunder  shall be absolute and  unconditional  irrespective of (a) any lack of
validity or enforceability of the Credit Agreement, any other Loan Document, any
agreement  with  respect to any of the  Obligations  or any other  agreement  or
instrument relating to any of the foregoing,  (b) any change in the time, manner
or place of payment of, or in any other term of, all or any of the  Obligations,
or any other  amendment  or waiver of or any consent to any  departure  from the
Credit Agreement,  any other Loan Document or any other agreement or instrument,
(c) any exchange,  release or nonperfection of any Lien on other collateral,  or
any release or  amendment or waiver of or consent  under or  departure  from any
guarantee,  securing or guaranteeing all or any of the  Obligations,  or (d) any
other circumstance that might otherwise  constitute a defense available to, or a
discharge of, any Grantor in respect of the Obligations or this Agreement.

         SECTION  7.03.  Survival  of  Agreement.  All  covenants,   agreements,
representations   and  warranties   made  by  any  Grantor  herein  and  in  the
certificates  or other  instruments  prepared or delivered in connection with or
pursuant to this  Agreement  shall be considered to have been relied upon by the
Secured  Parties and shall  survive the making by the Lenders of the Loans,  and
the  execution and delivery to the Lenders of any notes  evidencing  such Loans,
regardless  of any  investigation  made by the Lenders or on their  behalf,  and
shall continue in full force and effect until this Agreement shall terminate.

         SECTION 7.04. Binding Effect;  Several Agreement.  This Agreement shall
become effective as to any Grantor when a counterpart  hereof executed on behalf
of such  Grantor  shall  have  been  delivered  to the  Collateral  Agent  and a
counterpart  hereof shall have been executed on behalf of the Collateral  Agent,
and thereafter  shall be binding upon such Grantor and the Collateral  Agent and
their respective  successors and assigns, and shall inure to the benefit of such
Grantor, the Collateral Agent and the other Secured Parties and their respective
successors and assigns, except that no Grantor shall have the right to assign or
transfer its rights or  obligations  hereunder or any interest  herein or in the
Collateral  (and any such  assignment  or  transfer  shall  be void)  except  as
expressly contemplated by this Agreement or the Credit Agreement. This Agreement
shall be construed as a separate  agreement with respect to each Grantor and may
be  amended,  modified,  supplemented,  waived or released  with  respect to any
Grantor  without the  approval of any other  Grantor and without  affecting  the
obligations of any other Grantor hereunder.

         SECTION 7.05. Successors and Assigns. Whenever in this Agreement any of
the parties hereto is referred to, such reference shall be deemed to include the
successors and assigns of such party; and all covenants, promises and agreements
by or on behalf of any Grantor or the  Collateral  Agent that are  contained  in
this  Agreement  shall  bind  and  inure  to the  benefit  of  their  respective
successors and assigns.

         SECTION 7.06.  Collateral  Agent's Fees and Expenses;  Indemnification.
(a)  Each  Grantor  jointly  and  severally  agrees  to pay upon  demand  to the
Collateral  Agent the amount of any and all reasonable  expenses,  including the
reasonable  fees,  disbursements  and other  charges of its  counsel  and of any
experts or agents,  which the Collateral  Agent may incur in connection with (i)
the  administration  of this Agreement,  (ii) the custody or preservation of, or
the sale of,  collection from or other  realization  upon any of the Collateral,
(iii) the exercise, enforcement or protection of any of the rights of the


                                       17


Collateral  Agent  hereunder  or (iv) the  failure of any  Grantor to perform or
observe any of the provisions hereof.

         (b) Without  limitation of its  indemnification  obligations  under the
other Loan Documents, each Grantor jointly and severally agrees to indemnify the
Collateral  Agent and the  Indemnitees (as defined in Section 9.05 of the Credit
Agreement) against,  and hold each Indemnitee harmless from, any and all losses,
claims, damages,  liabilities and related expenses, including reasonable counsel
fees,  other  charges and  disbursements,  incurred  by or asserted  against any
Indemnitee  arising out of, in any way connected with, or as a result of (i) the
execution  or  delivery  of this  Agreement  or any other Loan  Document  or any
agreement or instrument  contemplated hereby or thereby,  the performance by the
parties hereto of their respective obligations thereunder or the consummation of
the Transactions  and the other  transactions  contemplated  thereby or (ii) any
claim, litigation, investigation or proceeding relating to any of the foregoing,
whether or not any Indemnitee is a party  thereto,  provided that such indemnity
shall not, as to any  Indemnitee,  be  available to the extent that such losses,
claims,  damages,  liabilities or related  expenses are determined by a court of
competent jurisdiction by final and nonappealable judgment to have resulted from
the gross negligence or wilful misconduct of such Indemnitee.

         (c) Any  amounts  payable as  provided  hereunder  shall be  additional
Obligations secured hereby and by the other Security  Documents.  The provisions
of this  Section  7.06  shall  remain  operative  and in full  force and  effect
regardless of the termination of this Agreement or any other Loan Document,  the
consummation of the transactions  contemplated  hereby,  the repayment of any of
the Obligations,  the invalidity or unenforceability of any term or provision of
this Agreement or any other Loan Document,  or any  investigation  made by or on
behalf of the Collateral Agent or any other Secured Party. All amounts due under
this  Section  7.06 shall be payable on written  demand  therefor and shall bear
interest at the rate specified in Section 2.07 of the Credit Agreement.

         SECTION  7.07.  GOVERNING  LAW.  THIS  AGREEMENT  SHALL BE CONSTRUED IN
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.

         SECTION  7.08.  Waivers;  Amendment.  (a) No  failure  or  delay of the
Collateral  Agent in exercising any power or right  hereunder shall operate as a
waiver  thereof,  nor shall any single or partial  exercise of any such right or
power, or any abandonment or  discontinuance of steps to enforce such a right or
power,  preclude  any other or further  exercise  thereof or the exercise of any
other right or power.  The rights and remedies of the Collateral Agent hereunder
and of the Secured Parties under the other Loan Documents are cumulative and are
not  exclusive  of any rights or remedies  that they would  otherwise  have.  No
waiver of any provisions of this Agreement or any other Loan Document or consent
to any departure by any Grantor therefrom shall in any event be effective unless
the same shall be  permitted  by  paragraph  (b) below,  and then such waiver or
consent shall be effective only in the specific instance and for the purpose for
which  given.  No notice to or demand on any  Grantor in any case shall  entitle
such  Grantor or any other  Grantor to any other or further  notice or demand in
similar or other circumstances.

         (b) Neither  this  Agreement  nor any  provision  hereof may be waived,
amended or modified  except  pursuant to an agreement or  agreements  in writing
entered into by the Collateral Agent and the Grantor or Grantors with respect to
which such waiver, amendment or modification is to apply, subject to any consent
required in accordance with Section 9.08 of the Credit Agreement.

         SECTION 7.09. WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL
BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF,


                                       18


UNDER OR IN CONNECTION  WITH THIS AGREEMENT OR ANY OF THE OTHER LOAN  DOCUMENTS.
EACH PARTY HERETO (A) CERTIFIES THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY
OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD
NOT, IN THE EVENT OF  LITIGATION,  SEEK TO ENFORCE THE FOREGOING  WAIVER AND (B)
ACKNOWLEDGES  THAT IT AND THE OTHER  PARTIES  HERETO HAVE BEEN  INDUCED TO ENTER
INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS, AS APPLICABLE, BY, AMONG OTHER
THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 7.09.

         SECTION  7.10.  Severability.  In the  event  any  one or  more  of the
provisions  contained  in this  Agreement  should be held  invalid,  illegal  or
unenforceable in any respect,  the validity,  legality and enforceability of the
remaining  provisions  contained  herein  shall  not in any way be  affected  or
impaired  thereby  (it being  understood  that the  invalidity  of a  particular
provision in a  particular  jurisdiction  shall not in and of itself  affect the
validity  of such  provision  in any  other  jurisdiction).  The  parties  shall
endeavor  in  good-faith  negotiations  to  replace  the  invalid,   illegal  or
unenforceable  provisions  with valid  provisions  the economic  effect of which
comes as close as  possible  to that of the  invalid,  illegal or  unenforceable
provisions.

         SECTION 7.11  Counterparts.  This  Agreement  may be executed in two or
more  counterparts,  each of which shall constitute an original but all of which
when taken together shall constitute but one contract (subject to Section 7.04),
and shall become effective as provided in Section 7.04.  Delivery of an executed
signature page to this Agreement by facsimile transmission shall be effective as
delivery of a manually executed counterpart hereof.

         SECTION 7.12.  Headings.  Article and Section  headings used herein are
for the purpose of reference only, are not part of this Agreement and are not to
affect the construction  of, or to be taken into  consideration in interpreting,
this Agreement.

         SECTION  7.13.  Jurisdiction;  Consent to Service of Process.  (a) Each
Grantor  hereby  irrevocably  and  unconditionally  submits,  for itself and its
property,  to the  nonexclusive  jurisdiction  of any New  York  State  court or
Federal court of the United States of America  sitting in New York City, and any
appellate court from any thereof,  in any action or proceeding arising out of or
relating to this Agreement or the other Loan  Documents,  or for  recognition or
enforcement of any judgment,  and each of the parties hereto hereby  irrevocably
and  unconditionally  agrees  that all claims in  respect of any such  action or
proceeding  may be heard and determined in such New York State or, to the extent
permitted by law, in such Federal court.  Each of the parties hereto agrees that
a final judgment in any such action or proceeding shall be conclusive and may be
enforced in other  jurisdictions  by suit on the judgment or in any other manner
provided  by law.  Nothing  in this  Agreement  shall  affect any right that the
Collateral  Agent or any other  Secured  Party may  otherwise  have to bring any
action or  proceeding  relating to this  Agreement  or the other Loan  Documents
against any Grantor or its properties in the courts of any jurisdiction.

         (b) Each Grantor hereby irrevocably and unconditionally  waives, to the
fullest extent it may legally and  effectively do so, any objection which it may
now or hereafter  have to the laying of venue of any suit,  action or proceeding
arising out of or relating to this  Agreement or the other Loan Documents in any
New York State or Federal court.  Each of the parties hereto hereby  irrevocably
waives,  to the fullest extent  permitted by law, the defense of an inconvenient
forum to the maintenance of such action or proceeding in any such court.

         (c) Each party to this  Agreement  irrevocably  consents  to service of
process in the manner  provided  for  notices in Section  7.01.  Nothing in this
Agreement  will  affected  the  right of any  party to this  Agreement  to serve
process in any other manner permitted by law.


                                       19


         SECTION 7.14.  Termination.  This  Agreement and the Security  Interest
shall  terminate  when all the  Obligations  have been paid in full, the Lenders
have no further commitment to lend under the Credit Agreement,  the L/C Exposure
has been  reduced to zero and the Issuing  Banks have no further  commitment  to
issue Letters of Credit under the Credit Agreement, at which time the Collateral
Agent  shall  promptly  execute and deliver to the  Grantors,  at the  Grantors'
expense,  all Uniform  Commercial Code termination  statements and other release
documents  which  the  Grantors  shall  reasonably   request  to  evidence  such
termination.  Any execution and delivery of termination  statements or documents
pursuant to this  Section  7.14 shall be without  recourse to or warranty by the
Collateral  Agent. A Subsidiary  Guarantor shall  automatically be released from
its  obligations  hereunder and the Security  Interest in the Collateral of such
Subsidiary  Guarantor shall be automatically  released in the event that all the
capital  stock  of such  Subsidiary  Guarantor  shall be  sold,  transferred  or
otherwise  disposed  of to a  person  that  is  not an  Affiliate  of  Terex  in
accordance with the terms of the Credit  Agreement;  provided that if consent to
such sale,  transfer or other  disposition is required by the Credit  Agreement,
such consent is obtained pursuant to Section 9.08(b) of the Credit Agreement and
the terms of such consent did not provide otherwise.

         SECTION  7.15.  Additional  Grantors.  Pursuant to Section  5.11 of the
Credit Agreement,  each Domestic Subsidiary that was not in existence or was not
a Domestic  Subsidiary on the date of the Credit  Agreement is required to enter
into  this  Agreement  as  a  Subsidiary  Guarantor  upon  becoming  a  Domestic
Subsidiary.  Upon execution and delivery after the date hereof by the Collateral
Agent  and such a  Subsidiary  of an  instrument  in the  form of Annex 2,  such
Subsidiary shall become a Subsidiary Guarantor hereunder with the same force and
effect as if originally named as a Subsidiary  Guarantor  herein.  The execution
and delivery of any instrument  adding an additional  Subsidiary  Guarantor as a
party to this  Agreement  shall not  require  the  consent of any other  Grantor
hereunder.  The rights and obligations of each Grantor hereunder shall remain in
full  force  and  effect  notwithstanding  the  addition  of any new  Subsidiary
Guarantor as a party to this Agreement.

         SECTION 7.16. Credit Agreement. Notwithstanding anything else contained
in this Agreement, each Grantor may do any act or omit to do any act or cause or
permit  any  condition  or  circumstance  to exist,  in each case to the  extent
expressly permitted by the Credit Agreement.


         IN  WITNESS  WHEREOF,  the  parties  hereto  have  duly  executed  this
Agreement as of the day and year first above written.

                                   TEREX CORPORATION,

                                     by
                                       --------------------------
                                       Name:
                                       Title:


                                   EACH OF THE SUBSIDIARY GUARANTORS
                                   LISTED ON SCHEDULE I HERETO,

                                     by
                                       --------------------------
                                       Name:
                                       Title: Authorized Officer



                                       20


                                                                   

                                   CREDIT SUISSE FIRST BOSTON, as Collateral
                                   Agent,

                                     by
                                       ---------------------------
                                       Name:
                                       Title:  Authorized Officer


                                     by
                                       ---------------------------
                                       Name:
                                       Title:  Authorized Officer



                                       21

                                                                    SCHEDULE I


                              SUBSIDIARY GUARANTORS






                                       22


                                                                   SCHEDULE II


                                   COPYRIGHTS




                                       23


                                                                  SCHEDULE III



                                    LICENSES




                                       24

                                                                   SCHEDULE IV





                                     PATENTS



                                       25

                                                                   SCHEDULE V
                                                                  




                                   TRADEMARKS




                                       26

                                                                Annex 1 to the
                                                            Security Agreement


                           LOCKBOX AND DEPOSITORY AGREEMENT



TO FOLLOW




                                       1

                                                                Annex 2 to the
                                                            Security Agreement


                       SUPPLEMENT  NO.  __  dated  as of ___ , to  the  Security
                  Agreement dated as of March 6, 1998, (as amended, supplemented
                  or otherwise  modified from time to time,  the (the  "Security
                  Agreement") among TEREX  CORPORATION,  a Delaware  corporation
                  ("Terex"),  each  subsidiary  of Terex  listed on  Schedule  I
                  thereto  (each  such  subsidiary  individually  a  "Subsidiary
                  Guarantor" and collectively,  the "Subsidiary Guarantors"; the
                  Subsidiary  Guarantors and Terex are referred to  collectively
                  herein as the  "Grantors")  and CREDIT SUISSE FIRST BOSTON,  a
                  bank organized under the laws of  Switzerland,  acting through
                  its New York branch  ("CSFB"),  as  collateral  agent (in such
                  capacity,  the "Collateral Agent") for the Secured Parties (as
                  defined herein).

         A. Reference is made to (a) the Credit  Agreement  dated as of March 6,
1998 (as amended,  supplemented  or otherwise  modified  from time to time,  the
"Credit  Agreement"),  among Terex, Terex Equipment Limited, a company organized
under the laws of Scotland,  P.P.M.  S.A., a company organized under the laws of
the Republic of France,  Unit Rig  (Australia)  Pty,  Ltd., a company  organized
under the laws of New South Wales, and P.P.M.  Sp.A., a company  organized under
the laws of the  Republic  of  Italy,  the  Lenders  (as  defined  in  Article I
thereto),  the  Issuing  Banks (as  defined in Article I thereto)  and CSFB,  as
administrative  agent and as collateral agent for the Lenders, (b) the Guarantee
Agreement  dated as of March 6,  1998 (as  amended,  supplemented  or  otherwise
modified from time to time,  the  "Subsidiary  Guarantee  Agreement")  among the
Subsidiary  Guarantors and the Collateral Agent and (c) the Guarantee  Agreement
dated as of March 6, 1998 (as amended,  supplemented or otherwise  modified from
time to time, the "Terex Guarantee  Agreement") between Terex and the Collateral
Agent .

         B. Capitalized terms used herein and not otherwise defined herein shall
have the meanings assigned to such terms in the Security Agreement.

         C. The Grantors  have  entered into the Security  Agreement in order to
induce  the  Lenders  to make Loans and the  Issuing  Banks to issue  Letters of
Credit. Section 7.15 of Security Agreement provides that additional Subsidiaries
may become Grantors under the Security Agreement by execution and delivery of an
instrument in the form of this Supplement.  The undersigned Subsidiary (the "New
Grantor") is executing this  Supplement in accordance  with the  requirements of
the Credit  Agreement to become a Grantor under the Security  Agreement in order
to induce the Lenders to make  additional  Loans and the  Issuing  Bank to issue
additional  Letters of Credit and as consideration for Loans previously made and
Letters of Credit previously issued.

         Accordingly, the Collateral Agent and the New Grantor agree as follows:

         SECTION 1. In accordance  with Section 7.15 of the Security  Agreement,
the New Grantor by its  signature  below  becomes a Grantor  under the  Security
Agreement  with the same force and effect as if  originally  named  therein as a
Grantor and the New Grantor hereby (a) agrees to all the terms and provisions of
the  Security  Agreement  applicable  to  it as a  Grantor  thereunder  and  (b)
represents and warrants that the  representations and warranties made by it as a
Grantor  thereunder  are  true and  correct  on and as of the  date  hereof.  In
furtherance of the foregoing,  the New Grantor,  as security for the payment and
performance  in full of the  Obligations,  does  hereby  create and grant to the
Collateral  Agent,  its successors  and assigns,  for the benefit of the Secured
Parties, their successors and assigns, a security interest in and lien on all of
the New Grantor's right,  title and interest in and to the Collateral of the New
Grantor. Each reference to a "Grantor" in the Security Agreement shall be deemed
to include the New Grantor. The Security Agreement is hereby incorporated herein
by reference.

         SECTION 2. The New Grantor  represents  and warrants to the  Collateral
Agent  and the  other  Secured  Parties  that  this  Supplement  has  been  duly
authorized,  executed and delivered by it and constitutes  its legal,  valid and
binding obligation, enforceable against it in accordance with its terms, subject
to applicable bankruptcy, insolvency, reorganization, moratorium or other laws



                                       2


affecting  creditors'  rights  generally  and subject to general  principles  of
equity, regardless of whether considered in a proceeding in equity or at law.

         SECTION 3. This  Supplement  may be  executed in  counterparts  (and by
different  parties  hereto  on  different  counterparts),  each of  which  shall
constitute an original,  but all of which when taken together shall constitute a
single  contract.  This  Supplement  shall become  effective when the Collateral
Agent shall have  received  counterparts  of this  Supplement  that,  when taken
together,  bear the  signatures  of the New  Grantor and the  Collateral  Agent.
Delivery  of  an  executed  signature  page  to  this  Supplement  by  facsimile
transmission  shall be as effective as delivery of a manually signed counterpart
of this Supplement.

         SECTION 4. The New Grantor hereby  represents and warrants that (a) set
forth on  Schedule  I  attached  hereto is a true and  correct  schedule  of the
location  of any and all  Collateral  of the New Grantor and (b) set forth under
its signature  hereto,  is the true and correct  location of the chief executive
office of the New Grantor.

         SECTION  5.  Except as  expressly  supplemented  hereby,  the  Security
Agreement shall remain in full force and effect.

         SECTION 6. THIS  SUPPLEMENT  SHALL BE  GOVERNED  BY, AND  CONSTRUED  IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

         SECTION 7. In case any one or more of the provisions  contained in this
Supplement should be held invalid,  illegal or unenforceable in any respect, the
validity,  legality and  enforceability  of the remaining  provisions  contained
herein  and in the  Security  Agreement  shall  not in any  way be  affected  or
impaired  thereby  (it being  understood  that the  invalidity  of a  particular
provision in a  particular  jurisdiction  shall not in and of itself  affect the
validity of such provision in any other jurisdiction).  The parties hereto shall
endeavor  in  good-faith  negotiations  to  replace  the  invalid,   illegal  or
unenforceable  provisions  with valid  provisions  the economic  effect of which
comes as close as  possible  to that of the  invalid,  illegal or  unenforceable
provisions.

         SECTION 8. All communications and notices hereunder shall be in writing
and  given  as  provided  in  Section  7.01  of  the  Security  Agreement.   All
communications  and notices hereunder to the New Grantor shall be given to it at
the address set forth under its signature below.

         SECTION 9. The Collateral Agent shall be reimbursed, in accordance with
Section  9.05(a)  of the  Credit  Agreement,  for its  reasonable  out-of-pocket
expenses in connection  with this  Supplement,  including the  reasonable  fees,
other charges and disbursements of counsel for the Collateral Agent.


         IN WITNESS WHEREOF,  the New Grantor and the Collateral Agent have duly
executed this Supplement to the Security  Agreement as of the day and year first
above written.


                                   [Name of New Grantor],

                                     by
                                       --------------------------------
                                       Name:
                                       Title:
                                       Address:





                                       3


                            

                                   CREDIT SUISSE FIRST BOSTON, as
                                   Collateral Agent,

                                     by
                                       --------------------------------
                                       Name:
                                       Title:


                                     by
                                       --------------------------------
                                       Name:
                                       Title:




                                       4


                                                                    SCHEDULE I
                                                   to Supplement No.___ to the
                                                            Security Agreement








                             LOCATION OF COLLATERAL



            Description                                Location