Document:

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                                                                   EXHIBIT 10(s)

                          WAIVER AND FIFTH AMENDMENT TO
                   SECOND AMENDED AND RESTATED LOAN AGREEMENT

         THIS WAIVER AND FIFTH AMENDMENT TO SECOND AMENDED AND RESTATED LOAN
AGREEMENT (the "Amendment"), dated as of January 31, 2001, is between PEERLESS
MFG. CO. ("Borrower") and THE CHASE MANHATTAN BANK (successor by merger to Chase
Bank of Texas, National Association, referred to herein as "Bank").

                                    RECITALS:

         Borrower and Bank have entered into that certain Second Amended and
Restated Loan Agreement dated as of December 12, 1998 (as the same has been
amended pursuant to that certain Waiver and First Amendment to Second Amended
and Restated Loan Agreement dated December 12, 1999, that certain Consent Letter
dated as of February 25, 2000, that certain Third Amendment to Second Amended
and Restated Loan Agreement dated June 2, 2000, and that certain Waiver Letter
dated as of December 1, 2000 and as the same may hereafter be amended or
otherwise modified, the "Agreement"). Borrower and Bank now desire to amend the
Agreement as herein set forth.

         NOW, THEREFORE, in consideration of the premises herein contained and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows effective as of the
date hereof unless otherwise indicated:

                                   Definitions

Definitions. Capitalized terms used in this Amendment, to the extent not
otherwise defined herein, shall have the same meanings as in the Agreement, as
amended hereby.

                                   Amendments

Amendment to Definition of "Termination Date". The definitions of the terms
"Prime Rate" and "Termination Date" contained in Section 1 of the Agreement are
each amended in their respective entireties to read as follows:

                "Prime Rate" means, the sum of (a) the fluctuating rate of
         interest established by Bank from time to time, at its discretion,
         whether or not such rate shall be otherwise published, plus (b) two and
         one-half percent (2.50%). The Prime Rate is established by Bank as an
         index and may or may not at any time be the best or lowest rate charged
         by Bank on any Loan.

                "Termination Date" means August 31, 2001.

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Amendment to Section 2.A iii. Section 2.A iii of the Agreement is amended in its
entirety to read as follows:

                iii. LETTER OF CREDIT SUBFEATURE. As a subfeature under the
         Line, Bank may from time to time up to and including the Termination
         Date, issue letters of credit for the account of Borrower (each such
         letter of credit and each letter of credit issued by Bank for the
         account of Borrower or one of its Subsidiaries under the Prior
         Agreement which is outstanding on the date hereof, a "Letter of Credit"
         and collectively, "Letters of Credit"); provided, however, that the
         form and substance of each Letter of Credit shall be subject to
         approval by Bank in its sole discretion; and provided further that the
         aggregate undrawn amount of all outstanding Letters of Credit shall not
         at any time exceed the difference between (a) the Line, minus (b) the
         aggregate unpaid principal amount of all Loans, minus (c) the amount of
         all drawings under any Letter of Credit for which Bank has not been
         reimbursed. No Letter of Credit issued or renewed subsequent to January
         31, 2001 shall have an expiry subsequent to 365 or more days after the
         Termination Date (any Letter of Credit with an expiry beyond the
         Termination Date, an "Extended Expiry LC"). Each draft paid by Bank
         under a Letter of Credit shall be deemed an advance under the Line and
         shall be repaid in accordance with the terms of the Line; provided,
         however, that if the Line is not available for any reason whatsoever,
         at the time any draft is paid by Bank, or if advances are not available
         under the Line in such amount due to any limitation of borrowing set
         forth herein, then the full amount of such drafts shall be immediately
         due and payable, together with interest thereon, from the date such
         amount is paid by Bank to the date such amount is fully repaid by
         Borrower, at that rate of interest applicable to advances under the
         Line. In such event, Borrower agrees that Bank, at Bank's sole
         discretion may debit any Collateral Account or Borrower's deposit
         accounts with Bank for the amount of such draft. If at any time prior
         to the Termination Date the sum of (a) the aggregate unpaid principal
         of the Loans, plus (b) the aggregate undrawn amount of all outstanding
         Letters of Credit exceeds the Line, Borrower shall immediately pay to
         Bank the amount of such excess, together with accrued, unpaid interest
         on the amount of such excess. If at any time after the Termination Date
         the aggregate undrawn amount of all Extended Expiry LCs exceeds the
         aggregate amount on deposit in the Collateral Accounts, at Bank's
         request, Borrower shall immediately deliver to Bank, for deposit into a
         Collateral Account, an amount in cash up to, but not to exceed, the
         amount the aggregate undrawn amount of all the Extended Expiry LCs
         exceeds the aggregate amount on deposit in the Collateral Accounts at
         such time. Letters of Credit shall be priced at a rate of 1.50% per
         annum of the face amount of the Letter of Credit, which fee is due and
         payable on issuance of the Letters of Credit.

Discontinuance of LIBOR, Adjusted LIBOR Rate, and LIBOR Borrowings. Borrower
shall not elect to have all or any portion of the Loans bear interest at the
Adjusted LIBOR Rate (the option to do so under the Agreement being hereby
terminated), Borrower may not request a LIBOR Borrowing, and any LIBOR
Borrowings outstanding as of the date of this Amendment shall immediately
convert to Prime Rate Borrowings. Borrower will pay all accrued and unpaid
interest to date on the amount converted and all Consequential Loss due under
Section 2.G.iv.

Addition to Section 4.A. Section 4.A. of the Agreement is amended to add the
following clause v thereto which shall read in its entirety as follows:

                v. Furnish to Bank within forty five (45) days after the end of
         each month (a) consolidated and consolidating financial statements
         (including a balance sheet and a profit and loss statement) of Borrower
         for each month of each fiscal year of Borrower, (b)

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         a listing of accounts receivable aged from the date of invoice, and (c)
         a list of inventory of Borrower.

Amendment to Section 5.A.ii. Section 5.A.ii. of the Agreement is amended in its
entirety to read as follows:

                ii. Borrower shall not permit

                    a.  Net Income to be less than or equal to $96,000 for the
                        quarter ending December 31, 2000.

                    b.  Net Income to be less than or equal to $309,000 for the
                        quarter ending March 31, 2001.

                    c.  Net Income to be less than or equal to $540,000 for
                        quarter ending June 30, 2001.

Amendment to Section 5.I. Section 5.I. of the Agreement is amended in its
entirety to read as follows:

                I. Dividends and other Distributions. Pay any dividends or make
         any other payment or distribution (whether in cash, other property, or
         obligations) on account of its capital stock, or redeem, purchase,
         retire, or otherwise acquire any of its capital stock, or permit any of
         the Subsidiaries to purchase or otherwise acquire any capital stock of
         the Borrower or another Subsidiary, or set apart any money for a
         sinking or other analogous fund for any dividend or other distribution
         on its capital stock or for any redemption, purchase, retirement, or
         other acquisition of any of its capital stock; except that (i)
         Subsidiaries may declare and pay dividends to the Borrower and (ii)
         Borrower may pay dividends if (a) no Event of Default exists or would
         result therefrom and (b) Borrower's Net Income calculated for the four
         quarter period then most recently ended as of the date of payment
         equals or exceeds $1,100,000.

Amendment to Exhibit A. Exhibit A to the Agreement is amended to read in its
entirety as set forth on Exhibit "A" hereto.

                       Waiver of Certain Events of Default

Waiver of Event of Default arising out of failure to comply with Sections 4.12
and 4.17 of the Security Agreement. Bank hereby waives the Event of Default
resulting from Borrower's failure to furnish to Bank (a) a security agreement
describing Borrower's trademarks which are registered with the United States of
America Patent and Trademark Office (the "U.S. Trademarks") and (b) a valid
perfected first priority security interest in Borrower's trademarks which are
registered with governmental authorities other than the United States of
America, which were to be furnished to Bank in connection with the execution of
the Security Agreement, dated as of November 30, 2000 (the "Security
Agreement"), by Peerless Mfg. Co. and Bank of America, N.A., as collateral agent
(the "Collateral Agent"). To induce Bank to agree to the waiver of the Event of
Default, Borrower agrees that it will (a) execute and deliver a trademark
security agreement granting Bank a perfected first priority security interest in
Borrower's U.S. Trademarks required to be delivered pursuant to Sections 4.12
and 4.17 of the Security Agreement on or before February 28, 2001 and its
failure to deliver such trademark security agreement on or before February 28,
2001 shall constitute and Event of Default under the Agreement and (b) at any
time in the

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future upon Bank's request execute and deliver a trademark security agreement
granting Bank a perfected first priority security interest in Borrower's
trademarks which are registered with governmental authorities other than the
United States of America.

Waiver of Event of Default arising out of failure to comply with Section 4.18 of
the Security Agreement. Bank hereby waives the Event of Default resulting from
Borrower's failure to have taken, on or before January 15, 2001, all action
required by the Collateral Agent to give the Collateral Agent control over the
accounts described in Exhibit 3.7 to the Security Agreement, including without
limitation, the execution and delivery among Borrower, the Collateral Agent and
the institutions identified on such Exhibit 3.7 of control agreements in form
and substance satisfactory to the Collateral Agent.

Waiver of Event of Default arising out of failure to comply with Section 4.22 of
the Security Agreement. Bank hereby waives the Event of Default resulting from
Borrower's failure to have delivered on or before January 15, 2001 (a) the share
certificates for each of the entities listed on Exhibit 1.2 of the Security
Agreement, (b) the certificates of existence and good standing for Peerless
(Barbados) Ltd., (c) resolutions from the board of directors of Peerless
(Barbados) Ltd. authorizing the transfer of the Peerless (Barbados) Ltd. shares
to the Collateral Agent, and (d) the documentation necessary to perfect the
Collateral Agent's interest in the Peerless Europe Ltd. share certificates
pursuant to the laws of the United Kingdom. To induce Bank to agree to the
waiver of the Event of Default, Borrower agrees that it will deliver, on or
before February 28, 2001, (a) the certificates of existence and good standing
for Peerless (Barbados) Ltd. and (b) resolutions from the board of directors of
Peerless (Barbados) Ltd. authorizing the transfer of the Peerless (Barbados)
Ltd. shares to the Collateral Agent, and its failure to deliver such
certificates and resolutions on or before February 28, 2001 shall constitute an
Event of Default under the Agreement. As a further inducement to Bank to agree
to the waiver of the Event of Default, (a) Borrower represents and warrants to
Bank that the net income of Peerless Europe Ltd. for the twelve months ended
December 31, 2000 is $288,000, and the net worth of Peerless Europe Ltd. for the
month ended December 31, 2000 is $546,000 and (b) Borrower agrees it will at any
time in the future upon Bank's request execute and deliver the documentation
necessary to perfect the Collateral Agent's interest in the Peerless Europe Ltd.
share certificates pursuant to the laws of the United Kingdom.

Limitation of Waivers. The waivers contained in Section 3.1, Section 3.2, and
Section 3.3 of this Amendment shall be limited strictly as written and shall not
be deemed to constitute a waiver of, or any consent to noncompliance with, any
term or provision of the Agreement, the Security Agreement, or any other Loan
Document except as expressly set forth herein. Further, the waivers contained in
Section 3.1, Section 3.2, and Section 3.3 of this Amendment shall not constitute
a waiver of any future Event of Default that may occur under the Security
Agreement, including, without limitation, Borrower's failure to keep, perform,
or observe the covenants set forth in Sections 4.12, 4.17, 4.18, and 4.22 of the
Security Agreement.

                              Conditions Precedent

Conditions. The effectiveness of this Amendment is subject to the satisfaction
of the following conditions precedent:

Bank shall have received all of the following, each dated (unless otherwise
indicated) the date of this Amendment, in form and substance satisfactory to
Bank:

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Corporate Matters. Such evidence of Borrower's existence, good standing and
authority to execute, deliver and perform this Amendment and the Loan Documents
to which it is or is to be a party hereunder;

Fourth Amended and Restated Promissory Note. Borrower shall have executed and
delivered to Bank a Third Amended and Restated Promissory Note in form and
substance similar to Exhibit "A" hereto;

NationsBank Agreement. Copies of the most recent amendments to the NationsBank
Agreement, and evidence of (1) a waiver by Bank of America, N.A. of the defaults
in Article 3 and (2) an extension of the date on which the NationsBank Agreement
matures to at least August 31, 2001;

Bank of America, N.A. Consent. A consent executed and delivered by the
Collateral Agent and Bank of America, N.A. to Bank's (a) increase in the Prime
Rate, (b) extension of the Termination Date, and (c) addition of the renewal fee
to be paid in accordance with Section 6.4 hereto; -

Receipt of Payment of Renewal Fee. Bank shall have received the renewal fee in
accordance with Section 6.4 hereto;

Additional Information. Bank shall have received such additional documentation
and information as Bank or its legal counsel, Jenkens & Gilchrist, a
Professional Corporation, may request; and

The representations and warranties contained herein and in all other Loan
Documents, as amended hereby, shall be true and correct in all material respects
as of the date hereof as if made on the date hereof, except for such
representations and warranties limited by their terms to a specific date;

No Event of Default shall have occurred and be continuing; and

All proceedings taken in connection with the transactions contemplated by this
Amendment and all documentation and other legal matters incident thereto shall
be satisfactory to Bank and its legal counsel, Jenkens & Gilchrist, a
Professional Corporation.

                  Ratifications, Representations and Warranties

Ratifications. The terms and provisions set forth in this Amendment shall modify
and supersede all inconsistent terms and provisions set forth in the Agreement
and except as expressly modified and superseded by this Amendment, the terms and
provisions of the Agreement and the other Loan Documents are ratified and
confirmed and shall continue in full force and effect. Borrower and Bank agree
that the Agreement as amended hereby and the other Loan Documents shall continue
to be legal, valid, binding and enforceable in accordance with their respective
terms.

Representations and Warranties. Borrower hereby represents and warrants to Bank
as follows: (a) after giving effect to this Amendment, no Event of Default has
occurred and is continuing; (b) after giving effect to this Amendment, the
representations and warranties set forth in the Loan Documents are true and
correct in all material respects on and as of the date hereof with the same
effect as though made on and as

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of such date except with respect to any representations and warranties limited
by their terms to a specific date; (c) the execution, delivery and performance
of this Amendment has been duly authorized by all necessary action on the part
of Borrower and does not and will not: (1) violate any provision of law
applicable to Borrower, the certificate of incorporation, bylaws, partnership
agreement, membership agreement, or other applicable governing document of
Borrower or any order, judgment, or decree of any court or agency of government
binding upon Borrower; (2) conflict with, result in a breach of or constitute
(with due notice or lapse of time or both) a default under any material
contractual obligation of Borrower; (3) result in or require the creation or
imposition of any material lien upon any of the assets of Borrower; or (4)
require any approval or consent of any Person under any material contractual
obligation of Borrower. IN ADDITION, TO INDUCE BANK TO AGREE TO THE TERMS OF
THIS AMENDMENT, BORROWER REPRESENTS AND WARRANTS THAT AS OF THE DATE OF ITS
EXECUTION OF THIS AMENDMENT THERE ARE NO CLAIMS OR OFFSETS AGAINST OR DEFENSES
OR COUNTERCLAIMS TO ITS OBLIGATIONS UNDER THE LOAN DOCUMENTS AND IN ACCORDANCE
THEREWITH IT:

WAIVER. WAIVES ANY AND ALL SUCH CLAIMS, OFFSETS, DEFENSES OR COUNTERCLAIMS,
WHETHER KNOWN OR UNKNOWN, ARISING PRIOR TO THE DATE OF ITS EXECUTION OF THIS
AMENDMENT AND

RELEASE. RELEASES AND DISCHARGES BANK, AND ITS OFFICERS, DIRECTORS, EMPLOYEES,
AGENTS, SHAREHOLDERS, AFFILIATES AND ATTORNEYS (COLLECTIVELY THE "RELEASED
PARTIES") FROM ANY AND ALL OBLIGATIONS, INDEBTEDNESS, LIABILITIES, CLAIMS,
RIGHTS, CAUSES OF ACTION OR DEMANDS WHATSOEVER, WHETHER KNOWN OR UNKNOWN,
SUSPECTED OR UNSUSPECTED, IN LAW OR EQUITY, WHICH BORROWER EVER HAD, NOW HAS,
CLAIMS TO HAVE OR MAY HAVE AGAINST ANY RELEASED PARTY ARISING PRIOR TO THE DATE
HEREOF AND FROM OR IN CONNECTION WITH THE LOAN DOCUMENTS OR THE TRANSACTIONS
CONTEMPLATED THEREBY.

                                  Miscellaneous

Survival of Representations and Warranties. All representations and warranties
made in this Amendment or any other Loan Document including any Loan Document
furnished in connection with this Amendment shall survive the execution and
delivery of this Amendment and the other Loan Documents, and no investigation by
Bank or any closing shall affect the representations and warranties or the right
of Bank to rely upon them.

Reference to Agreement. Each of the Loan Documents, including the Agreement and
any and all other agreements, documents, or instruments now or hereafter
executed and delivered pursuant to the terms hereof or pursuant to the terms of
the Agreement as amended hereby, are hereby amended so that any reference in
such Loan Documents to the Agreement shall mean a reference to the Agreement as
amended hereby.

Expenses of Bank. As provided in the Agreement, Borrower agrees to pay on demand
all costs and expenses incurred by Bank in connection with the preparation,
negotiation, and execution of this Amendment and the other Loan Documents
executed pursuant hereto, including without limitation, the costs and fees of
Bank's legal counsel.

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Renewal Fee. Borrower agrees to pay to Bank on the date hereof a renewal fee in
the amount of $25,000 as additional consideration for Bank's agreement to amend
the Agreement and waive the Events of Default as herein set forth.

Severability. Any provision of this Amendment held by a court of competent
jurisdiction to be invalid or unenforceable shall not impair or invalidate the
remainder of this Amendment and the effect thereof shall be confined to the
provision so held to be invalid or unenforceable.

Applicable Law. This Amendment and all other Loan Documents executed pursuant
hereto shall be governed by and construed in accordance with the laws of the
State of Texas and the applicable laws of the United States of America.

Successors and Assigns. This Amendment is binding upon and shall inure to the
benefit of Bank and Borrower and their respective successors and assigns, except
Borrower may not assign or transfer any of its rights or obligations hereunder
without the prior written consent of Bank.

Counterparts. This Amendment may be executed in one or more counterparts and on
telecopy counterparts, each of which when so executed shall be deemed to be an
original, but all of which when taken together shall constitute one and the same
agreement.

Effect of Waiver. No consent or waiver, express or implied, by Bank to or for
any breach of or deviation from any covenant, condition or duty by Borrower
shall be deemed a consent or waiver to or of any other breach of the same or any
other covenant, condition or duty.

Headings. The headings, captions, and arrangements used in this Amendment are
for convenience only and shall not affect the interpretation of this Amendment.

ENTIRE AGREEMENT. THIS AMENDMENT AND ALL OTHER INSTRUMENTS, DOCUMENTS AND
AGREEMENTS EXECUTED AND DELIVERED IN CONNECTION WITH THIS AMENDMENT EMBODY THE
FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO AND SUPERSEDE ANY AND ALL PRIOR
COMMITMENTS, AGREEMENTS, REPRESENTATIONS AND UNDERSTANDINGS, WHETHER WRITTEN OR
ORAL, RELATING TO THIS AMENDMENT, AND MAY NOT BE CONTRADICTED OR VARIED BY
EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OR DISCUSSIONS
OF THE PARTIES HERETO. THERE ARE NO ORAL AGREEMENTS AMONG THE PARTIES HERETO.

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                  Executed as of the date first written above.

                              BORROWER:

                              PEERLESS MFG. CO.

                              By:    /s/
                                 -----------------------------------------
                                 Sherrill Stone, Chairman and Chief Executive
                                 Officer

                              BANK:

                              THE CHASE MANHATTAN BANK (successor by merger to
                              Chase Bank of Texas, National Association)

                              By:    /s/
                                 -------------------------------------------
                                 Michael B. Phillips, Vice President

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                                     CONSENT

         The undersigned (a) hereby consents and agrees to this Amendment,
including without limitation, the (i) increase in the Prime Rate, (ii) extension
of the Termination Date, and (iii) addition of the renewal fee to be paid in
accordance with Section 6.4 hereto and (b) hereby agrees that the (i) increase
in the Prime Rate, (ii) extension of the Termination Date, and (iii) addition of
the renewal fee to be paid in accordance with Section 6.4 hereto do not and will
not violate the Intercreditor Agreement dated as of November 30, 2000, among
Bank of America, N.A. as a lender and as collateral agent, The Chase Manhattan
Bank, and Peerless Mfg. Co.

         Witness due execution hereof by the undersigned as of the date first
written above.

                                 BANK OF AMERICA, N.A., as a Lender and as
                                 Collateral Agent

                                 By:  /s/
                                    -------------------------------------------
                                     Mark L. Henze, Senior Vice President

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                                   Exhibit "A"
                                       to
                                Peerless Mfg. Co,
    Waiver and Fifth Amendment to Second Amended and Restated Loan Agreement

                   FOURTH AMENDED AND RESTATED PROMISSORY NOTE

Date: January 31, 2001
Amount:  $5,500,000.00

Bank:                                                      Borrower:

The Chase Manhattan Bank (successor by merger to Chase     Peerless Mfg. Co.
Bank of Texas, National Association)                       2819 Walnut Hill Lane
12875 Josey Lane                                           Dallas, Texas  75229
Dallas, Texas  75234-6398

County:  Dallas                                            County:  Dallas

FOR VALUE RECEIVED, the undersigned Borrower unconditionally (and jointly and
severally, if more than one) promises to pay to the order of Bank, its
successors and assigns, without setoff, at its offices indicated at the
beginning of this third amended and restated promissory note ("Note"), or at
such other place as may be designated by Bank, the principal amount of Five
Million Five Hundred Thousand Dollars ($5,500,000.00), or so much thereof as may
be advanced in immediately available funds, together with interest computed
daily on the outstanding principal balance hereunder, at an annual interest
rate, and in accordance with the payment schedule, indicated below.

1.    LOAN AGREEMENT. This Note is executed and delivered by Borrower pursuant
      to the certain Second Amended and Restated Loan Agreement dated as of
      December 12, 1998 between Borrower and Bank (as the same has been amended
      pursuant to that certain Waiver and First Amendment to Second Amended and
      Restated Loan Agreement dated December 12, 1999, that certain Consent
      Letter dated as of February 25, 2000, that certain Third Amendment to
      Second Amended and Restated Loan Agreement dated June 2, 2000, that
      certain Waiver Letter dated as of December 1, 2000, and as the same may
      hereinafter be amended or otherwise modified, herein called the "Loan
      Agreement") and is the Note as defined therein. All terms defined in the
      Loan Agreement, wherever used herein, shall have the same meanings as are
      prescribed by the Loan Agreement.

2.    RATE. The unpaid principal from day to day outstanding under this Note
      shall bear interest at the applicable rate prescribed for the Loans as
      provided by the Loan Agreement. Bank's records shall be conclusive proof
      of loans, payments and interest accruals hereunder, absent proof by
      Borrower of error. Notwithstanding any provision of this Note, Bank does
      not intend to charge and Borrower shall not be required to pay any amount
      of interest or other charges in excess of the maximum permitted by
      applicable law. Borrower agrees that during the full term hereof, the
      maximum lawful interest rate for this Note as determined under Texas law
      shall be the weekly rate ceiling described in, and computed in accordance
      with the Texas Finance Code. Further, to the extent that any other lawful
      rate ceiling exceeds the rate ceiling so determined then the higher rate
      ceiling shall apply. Any payment in excess of such maximum shall be
      refunded to Borrower or credited against principal, at the option of Bank.

3.    REPAYMENT. Subject to the terms of the Loan Agreement, all unpaid
      principal and accrued interest under this Note shall be payable as
      follows: Accrued interest shall be payable quarterly in arrears on each
      Interest Payment Date beginning on March 31, 2001 and

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      continuing thereafter through the Termination Date, and all unpaid
      principal hereunder and all other amounts payable hereunder relative to
      the Loans, shall be due and payable to Bank in full, and the Line shall
      terminate, on the Termination Date. To the extent that any accrued
      interest is not paid on the date when due, as provided herein, Bank may at
      its option (but with no obligation to do so), add the amount of such
      accrued interest to the unpaid principal due by Borrower under the Loans,
      in which event such amount will be deemed paid and the aggregate amount
      thereof shall be treated as a Loan.

4.    REVOLVING FEATURE. Borrower may borrow, repay and reborrow hereunder at
      any time, up to a maximum aggregate amount outstanding at any one time
      equal to the principal amount of this Note, provided that Borrower is not
      in default under any provision of this Note, any other documents executed
      in connection with this Note, or any other note or other loan documents
      now or hereafter executed in connection with any other obligation of
      Borrower to Bank, and provided that the borrowings hereunder do not exceed
      any borrowing base or other limitation on borrowings by Borrower,
      including, without limitation, those set forth in the Loan Agreement. Bank
      shall incur no liability for its refusal to advance funds based upon its
      determination that any conditions of such further advances have not been
      met. Bank records of the amounts borrowed from time to time shall be
      conclusive proof thereof.

5.    WAIVERS, CONSENTS AND COVENANTS. Borrower, any indorser or guarantor
      hereof, or any other party hereto (individually an "Obligor" and
      collectively "Obligors") and each of them jointly and severally: (a) waive
      presentment, demand, protest, notice of demand, notice of intent to
      accelerate, notice of acceleration of maturity, notice of protest, notice
      of nonpayment, notice of dishonor, and any other notice required to be
      given under the law to any Obligor in connection with the delivery,
      acceptance, performance, default or enforcement of this Note, any
      indorsement or guaranty of this Note or any other documents executed in
      connection with this Note or any other note or other loan documents now or
      hereafter executed in connection with any obligation of Borrower to Bank
      (the "Loan Documents"); (b) consent to all delays, extensions, renewals or
      other modifications of this Note or the Loan Documents, or waivers of any
      term hereof or of the Loan Documents, or release or discharge by Bank of
      any of Obligors, or release, substitution or exchange of any security for
      the payment hereof, or the failure to act on the part of Bank, or any
      indulgence shown by Bank (without notice to or further assent from any of
      Obligors), and agree that no such action, failure to act or failure to
      exercise any right or remedy by Bank shall in any way affect or impair the
      obligations of any Obligors or be construed as a waiver by Bank of, or
      otherwise affect, any of Bank's rights under this Note, under any
      indorsement or guaranty of this Note or under any of the Loan Documents;
      and (c) agree to pay, on demand, all costs and expenses of collection or
      defense of this Note or of any indorsement or guaranty hereof and/or the
      enforcement or defense of Bank's rights with respect to, or the
      administration, supervision, preservation, or protection of, or
      realization upon, any property securing payment hereof, including, without
      limitation, reasonable attorney's fees, including fees related to any
      suit, mediation or arbitration proceeding, out of court payment agreement,
      trial, appeal, bankruptcy proceedings or other proceeding, in such amount
      as may be determined reasonable by any arbitrator or court, whichever is
      applicable.

6.    PREPAYMENTS. Any prepayments of the Loans outstanding under this Note are
      subject to the terms contained in the Loan Agreement.

7.    EVENTS OF DEFAULT. The following are events of default hereunder: (a) any
      default under the Loan Agreement; (b) the commencement of a proceeding
      against any Obligor for dissolution or liquidation, the voluntary or
      involuntary termination or dissolution of any

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      Obligor or the merger or consolidation of any Obligor with or into another
      entity; and (c) the insolvency of, the business failure of, the
      appointment of a custodian, trustee, liquidator or receiver for or for any
      of the property of, the assignment for the benefit of creditors by, or the
      filing of a petition under bankruptcy, insolvency or debtor's relief law
      or the filing of a petition for any adjustment of indebtedness,
      composition or extension by or against any Obligor.

8.    REMEDIES UPON DEFAULT. Whenever there is a default under this Note (a) the
      entire balance outstanding hereunder and all other obligations of any
      Obligor to Bank (however acquired or evidenced) shall, at the option of
      Bank, become immediately due and payable and any obligation of Bank to
      permit further borrowing under this Note shall immediately cease and
      terminate, and/or (b) to the extent permitted by law, the Rate of interest
      on the unpaid principal shall be increased at Bank's discretion up to the
      maximum rate allowed by law, or if none, 25% per annum (the "Default
      Rate"). The provisions herein for a Default Rate shall not be deemed to
      extend the time for any payment hereunder or to constitute a "grace
      period" giving Obligors a right to cure any default. At Bank's option, any
      accrued and unpaid interest, fees or charges may, for purposes of
      computing and accruing interest on a daily basis after the due date of the
      Note or any installment thereof, be deemed to be a part of the principal
      balance, and interest shall accrue on a daily compounded basis after such
      date at the Default Rate provided in this Note until the entire
      outstanding balance of principal and interest is paid in full. Upon a
      default under this Note, Bank is hereby authorized at any time, at its
      option and without notice or demand, to set off and charge against any
      deposit accounts of any Obligor (as well as any money, instruments,
      securities, documents, chattel paper, credits, claims, demands, income and
      any other property, rights and interests of any Obligor), which at any
      time shall come into the possession or custody or under the control of
      Bank or any of its agents, affiliates or correspondents, any and all
      obligations due hereunder. Additionally, Bank shall have all rights and
      remedies available under each of the Loan Documents (as defined in the
      Loan Agreement), as well as all rights and remedies available at law or in
      equity.

9.    NON-WAIVER. The failure at any time of Bank to exercise any of its options
      or any other rights hereunder shall not constitute a waiver thereof, nor
      shall it be a bar to the exercise of any of its options or rights at a
      later date. All rights and remedies of Bank shall be cumulative and may be
      pursued singly, successively or together, at the option of Bank. The
      acceptance by Bank of any partial payment shall not constitute a waiver of
      any default or of any of Bank's rights under this Note. No waiver of any
      of its rights hereunder, and no modification or amendment of this Note,
      shall be deemed to be made by Bank unless the same shall be in writing,
      duly signed on behalf of Bank; each such waiver shall apply only with
      respect to the specific instance involved, and shall in no way impair the
      rights of Bank or the obligations of Obligors to Bank in any other respect
      at any other time.

10.   APPLICABLE LAW, VENUE AND JURISDICTION. Borrower agrees that this Note
      shall be deemed to have been made in the State of Texas at Bank's address
      indicated at the beginning of this Note and shall be governed by, and
      construed in accordance with, the laws of the State of Texas and is
      performable in the City and County of Texas indicated at the beginning of
      this Note. In any litigation in connection with or to enforce this Note or
      any indorsement or guaranty of this Note or any Loan Documents, Obligors,
      and each of them, irrevocably consent to and confer personal jurisdiction
      on the courts of the State of Texas or the United States courts located
      within the State of Texas. Nothing contained herein shall, however,
      prevent Bank from bringing any action or exercising any rights within any
      other state or

                                       13
<PAGE>   14

      jurisdiction or from obtaining personal jurisdiction by any other means
      available under applicable law.

11.   PARTIAL INVALIDITY. The unenforceability or invalidity of any provision of
      this Note shall not affect the enforceability or validity of any other
      provision herein and the invalidity or unenforceability of any provision
      of this Note or of the Loan Documents to any person or circumstance shall
      not affect the enforceability or validity of such provision as it may
      apply to other persons or circumstances.

12.   BINDING EFFECT. This Note shall be binding upon and inure to the benefit
      of Borrower, Obligors and Bank and their respective successors, assigns,
      heirs and personal representatives, provided, however, that no obligations
      of Borrower or Obligors hereunder can be assigned without prior written
      consent of Bank.

13.   AMENDMENT AND RESTATEMENT OF PREVIOUS NOTES. This Note is in renewal,
      increase and extension of, and is issued in amendment and restatement of
      (but not in extinguishment of) the indebtedness evidenced by the certain
      Third Amended and Restated Promissory Note dated December 12, 2000,
      previously executed and delivered by Borrower payable to the order of
      Chase Bank of Texas, National Association (now known as "The Chase
      Manhattan Bank") in the face amount of $5,500,000.00 (the "Amended and
      Restated Note") which Amended and Restated Note was in renewal and
      extension of, and issued in amendment and restatement of (but not in
      extinguishment of) the indebtedness previously evidenced by the Second
      Amended and Restated Promissory Note dated December 12, 1999, previously
      executed and delivered by Borrower payable to the order of Bank in the
      face amount of $3,500,000.00, that certain amended and restated promissory
      note dated December 28, 1998 previously executed and delivered by Borrower
      payable to the order of Bank in the face amount of $3,500,000.00, and that
      certain Promissory Note dated January 12, 1998, previously executed and
      delivered by Borrower payable to the order of Texas Commerce Bank National
      Association (now known as "Chase Bank of Texas, National Association"), in
      the face amount of $2,500,000.00 and all such indebtedness hereafter shall
      be governed by and payable in accordance with the terms hereof. Borrower
      agrees to pay all unpaid interest accrued under the Amended and Restated
      Note as of the date hereof on the next Interest Payment Date.

14.   CONTROLLING DOCUMENT. To the extent that this Note conflicts with or is in
      any way incompatible with any other document related specifically to the
      loan evidenced by this Note, this Note shall control over any other such
      document, and if this Note does not address an issue, then each other such
      document shall control to the extent that it deals most specifically with
      an issue.

15.   ARBITRATION. ANY CONTROVERSY OR CLAIM BETWEEN OR AMONG THE PARTIES HERETO
      INCLUDING BUT NOT LIMITED TO THOSE ARISING OUT OF OR RELATING TO THIS
      INSTRUMENT, AGREEMENT OR DOCUMENT OR ANY RELATED INSTRUMENTS, AGREEMENTS
      OR DOCUMENTS, INCLUDING ANY CLAIM BASED ON OR ARISING FROM AN ALLEGED
      TORT, SHALL BE DETERMINED BY BINDING ARBITRATION IN ACCORDANCE WITH THE
      FEDERAL ARBITRATION ACT (OR IF NOT APPLICABLE, THE APPLICABLE STATE LAW),
      THE RULES OF PRACTICE AND PROCEDURE FOR THE ARBITRATION OF COMMERCIAL
      DISPUTES OF J.A.M.S./ ENDISPUTE OR ANY SUCCESSOR THEREOF ("J.A.M.S."), AND
      THE "SPECIAL RULES" SET FORTH BELOW. IN THE EVENT OF ANY INCONSISTENCY,
      THE SPECIAL RULES SHALL

                                       14
<PAGE>   15

      CONTROL. JUDGMENT UPON ANY ARBITRATION AWARD MAY BE ENTERED IN ANY COURT
      HAVING JURISDICTION. ANY PARTY TO THIS INSTRUMENT, AGREEMENT OR DOCUMENT
      MAY BRING AN ACTION, INCLUDING A SUMMARY OR EXPEDITED PROCEEDING, TO
      COMPEL ARBITRATION OF ANY CONTROVERSY OR CLAIM TO WHICH THIS AGREEMENT
      APPLIES IN ANY COURT HAVING JURISDICTION OVER SUCH ACTION.

            A. SPECIAL RULES. THE ARBITRATION SHALL BE CONDUCTED IN THE COUNTY
       OF ANY BORROWER'S DOMICILE AT THE TIME OF THE EXECUTION OF THIS
       INSTRUMENT, AGREEMENT OR DOCUMENT AND ADMINISTERED BY J.A.M.S. WHO WILL
       APPOINT AN ARBITRATOR; IF J.A.M.S. IS UNABLE OR LEGALLY PRECLUDED FROM
       ADMINISTERING THE ARBITRATION, THEN THE AMERICAN ARBITRATION ASSOCIATION
       WILL SERVE. ALL ARBITRATION HEARINGS WILL BE COMMENCED WITHIN 90 DAYS OF
       THE DEMAND FOR ARBITRATION; FURTHER, THE ARBITRATOR SHALL ONLY, UPON A
       SHOWING OF CAUSE, BE PERMITTED TO EXTEND THE COMMENCEMENT OF SUCH HEARING
       FOR UP TO AN ADDITIONAL 60 DAYS.

            B. RESERVATION OF RIGHTS. NOTHING IN THIS ARBITRATION PROVISION
       SHALL BE DEEMED TO (I) LIMIT THE APPLICABILITY OF ANY OTHERWISE
       APPLICABLE STATUTES OF LIMITATION OR REPOSE AND ANY WAIVERS CONTAINED IN
       THIS INSTRUMENT, AGREEMENT OR DOCUMENT; OR (II) BE A WAIVER BY BANK OF
       THE PROTECTION AFFORDED TO IT BY 12 U.S.C. SEC. 91 OR ANY SUBSTANTIALLY
       EQUIVALENT STATE LAW; OR (III) LIMIT THE RIGHT OF BANK HERETO (A) TO
       EXERCISE SELF HELP REMEDIES SUCH AS (BUT NOT LIMITED TO) SETOFF, OR (B)
       TO FORECLOSE AGAINST ANY REAL OR PERSONAL PROPERTY COLLATERAL, OR (C) TO
       OBTAIN FROM A COURT PROVISIONAL OR ANCILLARY REMEDIES SUCH AS (BUT NOT
       LIMITED TO) INJUNCTIVE RELIEF, WRIT OF POSSESSION OR THE APPOINTMENT OF A
       RECEIVER. BANK MAY EXERCISE SUCH SELF HELP RIGHTS, FORECLOSE UPON SUCH
       PROPERTY, OR OBTAIN SUCH PROVISIONAL OR ANCILLARY REMEDIES BEFORE, DURING
       OR AFTER THE PENDENCY OF ANY ARBITRATION PROCEEDING BROUGHT PURSUANT TO
       THIS INSTRUMENT, AGREEMENT OR DOCUMENT. NEITHER THIS EXERCISE OF SELF
       HELP REMEDIES NOR THE INSTITUTION OR MAINTENANCE OF AN ACTION FOR
       FORECLOSURE OR PROVISIONAL OR ANCILLARY REMEDIES SHALL CONSTITUTE A
       WAIVER OF THE RIGHT OF ANY PARTY, INCLUDING THE CLAIMANT IN ANY SUCH
       ACTION, TO ARBITRATE THE MERITS OF THE CONTROVERSY OR CLAIM OCCASIONING
       RESORT TO SUCH REMEDIES.

Borrower represents to Bank that the proceeds of this loan are to be used
primarily for business, commercial or agricultural purposes. Borrower
acknowledges having read and understood, and agrees to be bound by, all terms
and conditions of this Note.

NOTICE OF FINAL AGREEMENT:

THIS WRITTEN PROMISSORY NOTE REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES,
AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT
ORAL AGREEMENTS OF THE

                                       15
<PAGE>   16

PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

   Bank: THE CHASE MANHATTAN BANK        Borrower: PEERLESS MFG. CO.

By:                                      By:
   -------------------------------          -----------------------------------
   Michael B. Phillips, Vice President      Sherrill Stone, Chairman and Chief
                                            Executive Officer

                                       16<PAGE>   1

                                                                   EXHIBIT 10(t)

                   FOURTH AMENDED AND RESTATED PROMISSORY NOTE

Date: January 31, 2001
Amount:  $5,500,000.00

================================================================================
<TABLE>
<S>                                                        <C>
Bank:                                                      Borrower:
The Chase Manhattan Bank (successor by merger to Chase     Peerless Mfg. Co.
Bank of Texas, National Association)                       2819 Walnut Hill Lane
12875 Josey Lane                                           Dallas, Texas  75229
Dallas, Texas  75234-6398
County:  Dallas                                            County:  Dallas
</TABLE>
================================================================================

FOR VALUE RECEIVED, the undersigned Borrower unconditionally (and jointly and
severally, if more than one) promises to pay to the order of Bank, its
successors and assigns, without setoff, at its offices indicated at the
beginning of this third amended and restated promissory note ("Note"), or at
such other place as may be designated by Bank, the principal amount of Five
Million Five Hundred Thousand Dollars ($5,500,000.00), or so much thereof as may
be advanced in immediately available funds, together with interest computed
daily on the outstanding principal balance hereunder, at an annual interest
rate, and in accordance with the payment schedule, indicated below.

16.  LOAN AGREEMENT. This Note is executed and delivered by Borrower pursuant to
     the certain Second Amended and Restated Loan Agreement dated as of December
     12, 1998 between Borrower and Bank (as the same has been amended pursuant
     to that certain Waiver and First Amendment to Second Amended and Restated
     Loan Agreement dated December 12, 1999, that certain Consent Letter dated
     as of February 25, 2000, that certain Third Amendment to Second Amended and
     Restated Loan Agreement dated June 2, 2000, that certain Waiver Letter
     dated as of December 1, 2000, and as the same may hereinafter be amended or
     otherwise modified, herein called the "Loan Agreement") and is the Note as
     defined therein. All terms defined in the Loan Agreement, wherever used
     herein, shall have the same meanings as are prescribed by the Loan
     Agreement.

17.  RATE. The unpaid principal from day to day outstanding under this Note
     shall bear interest at the applicable rate prescribed for the Loans as
     provided by the Loan Agreement. Bank's records shall be conclusive proof of
     loans, payments and interest accruals hereunder, absent proof by Borrower
     of error. Notwithstanding any provision of this Note, Bank does not intend
     to charge and Borrower shall not be required to pay any amount of interest
     or other charges in excess of the maximum permitted by applicable law.
     Borrower agrees that during the full term hereof, the maximum lawful
     interest rate for this Note as determined under Texas law shall be the
     weekly rate ceiling described in, and computed in accordance with the Texas
     Finance Code. Further, to the extent that any other lawful rate ceiling
     exceeds the rate ceiling so determined then the higher rate ceiling shall
     apply. Any payment in excess of such maximum shall be refunded to Borrower
     or credited against principal, at the option of Bank.

18.  REPAYMENT. Subject to the terms of the Loan Agreement, all unpaid principal
     and accrued interest under this Note shall be payable as follows: Accrued
     interest shall be payable quarterly in arrears on each Interest Payment
     Date beginning on March 31, 2001 and continuing thereafter through the
     Termination Date, and all unpaid principal hereunder and all other amounts
     payable hereunder relative to the Loans, shall be due and payable to Bank
     in full, and the Line shall terminate, on the Termination Date. To the
     extent that any accrued interest is not paid on the date when due, as
     provided herein, Bank may at its option (but with no obligation to do so),
     add the amount of such accrued interest to the unpaid principal due by
     Borrower under the Loans, in which event such amount will be deemed paid
     and the aggregate amount thereof shall be treated as a Loan.

                                       1
<PAGE>   2

19.  REVOLVING FEATURE. Borrower may borrow, repay and reborrow hereunder at any
     time, up to a maximum aggregate amount outstanding at any one time equal to
     the principal amount of this Note, provided that Borrower is not in default
     under any provision of this Note, any other documents executed in
     connection with this Note, or any other note or other loan documents now or
     hereafter executed in connection with any other obligation of Borrower to
     Bank, and provided that the borrowings hereunder do not exceed any
     borrowing base or other limitation on borrowings by Borrower, including,
     without limitation, those set forth in the Loan Agreement. Bank shall incur
     no liability for its refusal to advance funds based upon its determination
     that any conditions of such further advances have not been met. Bank
     records of the amounts borrowed from time to time shall be conclusive proof
     thereof.

20.  WAIVERS, CONSENTS AND COVENANTS. Borrower, any indorser or guarantor
     hereof, or any other party hereto (individually an "Obligor" and
     collectively "Obligors") and each of them jointly and severally: (a) waive
     presentment, demand, protest, notice of demand, notice of intent to
     accelerate, notice of acceleration of maturity, notice of protest, notice
     of nonpayment, notice of dishonor, and any other notice required to be
     given under the law to any Obligor in connection with the delivery,
     acceptance, performance, default or enforcement of this Note, any
     indorsement or guaranty of this Note or any other documents executed in
     connection with this Note or any other note or other loan documents now or
     hereafter executed in connection with any obligation of Borrower to Bank
     (the "Loan Documents"); (b) consent to all delays, extensions, renewals or
     other modifications of this Note or the Loan Documents, or waivers of any
     term hereof or of the Loan Documents, or release or discharge by Bank of
     any of Obligors, or release, substitution or exchange of any security for
     the payment hereof, or the failure to act on the part of Bank, or any
     indulgence shown by Bank (without notice to or further assent from any of
     Obligors), and agree that no such action, failure to act or failure to
     exercise any right or remedy by Bank shall in any way affect or impair the
     obligations of any Obligors or be construed as a waiver by Bank of, or
     otherwise affect, any of Bank's rights under this Note, under any
     indorsement or guaranty of this Note or under any of the Loan Documents;
     and (c) agree to pay, on demand, all costs and expenses of collection or
     defense of this Note or of any indorsement or guaranty hereof and/or the
     enforcement or defense of Bank's rights with respect to, or the
     administration, supervision, preservation, or protection of, or realization
     upon, any property securing payment hereof, including, without limitation,
     reasonable attorney's fees, including fees related to any suit, mediation
     or arbitration proceeding, out of court payment agreement, trial, appeal,
     bankruptcy proceedings or other proceeding, in such amount as may be
     determined reasonable by any arbitrator or court, whichever is applicable.

21.  PREPAYMENTS. Any prepayments of the Loans outstanding under this Note are
     subject to the terms contained in the Loan Agreement.

22.  EVENTS OF DEFAULT. The following are events of default hereunder: (a) any
     default under the Loan Agreement; (b) the commencement of a proceeding
     against any Obligor for dissolution or liquidation, the voluntary or
     involuntary termination or dissolution of any Obligor or the merger or
     consolidation of any Obligor with or into another entity; and (c) the
     insolvency of, the business failure of, the appointment of a custodian,
     trustee, liquidator or receiver for or for any of the property of, the
     assignment for the benefit of creditors by, or the filing of a petition
     under bankruptcy, insolvency or debtor's relief law or the filing of a
     petition for any adjustment of indebtedness, composition or extension by or
     against any Obligor.

23.  REMEDIES UPON DEFAULT. Whenever there is a default under this Note (a) the
     entire balance outstanding hereunder and all other obligations of any
     Obligor to Bank (however acquired or evidenced) shall, at the option of
     Bank, become immediately due and payable and any obligation of Bank to
     permit further borrowing under this Note shall immediately cease and
     terminate, and/or (b) to the extent permitted by law, the Rate of interest
     on the unpaid principal shall be increased at Bank's discretion up to the
     maximum rate allowed by law, or if none, 25% per annum (the "Default
     Rate"). The provisions herein for a Default Rate shall not be deemed to
     extend the time for any payment hereunder or to constitute a "grace period"
     giving Obligors a right to cure any default. At Bank's

                                       2
<PAGE>   3

     option, any accrued and unpaid interest, fees or charges may, for purposes
     of computing and accruing interest on a daily basis after the due date of
     the Note or any installment thereof, be deemed to be a part of the
     principal balance, and interest shall accrue on a daily compounded basis
     after such date at the Default Rate provided in this Note until the entire
     outstanding balance of principal and interest is paid in full. Upon a
     default under this Note, Bank is hereby authorized at any time, at its
     option and without notice or demand, to set off and charge against any
     deposit accounts of any Obligor (as well as any money, instruments,
     securities, documents, chattel paper, credits, claims, demands, income and
     any other property, rights and interests of any Obligor), which at any time
     shall come into the possession or custody or under the control of Bank or
     any of its agents, affiliates or correspondents, any and all obligations
     due hereunder. Additionally, Bank shall have all rights and remedies
     available under each of the Loan Documents (as defined in the Loan
     Agreement), as well as all rights and remedies available at law or in
     equity.

24.  NON-WAIVER. The failure at any time of Bank to exercise any of its options
     or any other rights hereunder shall not constitute a waiver thereof, nor
     shall it be a bar to the exercise of any of its options or rights at a
     later date. All rights and remedies of Bank shall be cumulative and may be
     pursued singly, successively or together, at the option of Bank. The
     acceptance by Bank of any partial payment shall not constitute a waiver of
     any default or of any of Bank's rights under this Note. No waiver of any of
     its rights hereunder, and no modification or amendment of this Note, shall
     be deemed to be made by Bank unless the same shall be in writing, duly
     signed on behalf of Bank; each such waiver shall apply only with respect to
     the specific instance involved, and shall in no way impair the rights of
     Bank or the obligations of Obligors to Bank in any other respect at any
     other time.

25.  APPLICABLE LAW, VENUE AND JURISDICTION. Borrower agrees that this Note
     shall be deemed to have been made in the State of Texas at Bank's address
     indicated at the beginning of this Note and shall be governed by, and
     construed in accordance with, the laws of the State of Texas and is
     performable in the City and County of Texas indicated at the beginning of
     this Note. In any litigation in connection with or to enforce this Note or
     any indorsement or guaranty of this Note or any Loan Documents, Obligors,
     and each of them, irrevocably consent to and confer personal jurisdiction
     on the courts of the State of Texas or the United States courts located
     within the State of Texas. Nothing contained herein shall, however, prevent
     Bank from bringing any action or exercising any rights within any other
     state or jurisdiction or from obtaining personal jurisdiction by any other
     means available under applicable law.

26.  PARTIAL INVALIDITY. The unenforceability or invalidity of any provision of
     this Note shall not affect the enforceability or validity of any other
     provision herein and the invalidity or unenforceability of any provision of
     this Note or of the Loan Documents to any person or circumstance shall not
     affect the enforceability or validity of such provision as it may apply to
     other persons or circumstances.

27.  BINDING EFFECT. This Note shall be binding upon and inure to the benefit of
     Borrower, Obligors and Bank and their respective successors, assigns, heirs
     and personal representatives, provided, however, that no obligations of
     Borrower or Obligors hereunder can be assigned without prior written
     consent of Bank.

28.  AMENDMENT AND RESTATEMENT OF PREVIOUS NOTES. This Note is in renewal,
     increase and extension of, and is issued in amendment and restatement of
     (but not in extinguishment of) the indebtedness evidenced by the certain
     Third Amended and Restated Promissory Note dated December 12, 2000,
     previously executed and delivered by Borrower payable to the order of Chase
     Bank of Texas, National Association (now known as "The Chase Manhattan
     Bank") in the face amount of $5,500,000.00 (the "Amended and Restated
     Note") which Amended and Restated Note was in renewal and extension of, and
     issued in amendment and restatement of (but not in extinguishment of) the
     indebtedness previously evidenced by the Second Amended and Restated
     Promissory Note dated December 12, 1999, previously executed and delivered
     by Borrower payable to the order of Bank in the face amount of
     $3,500,000.00, that certain amended and restated promissory note dated
     December 28, 1998 previously executed and delivered by Borrower payable to
     the order of Bank in the face amount of $3,500,000.00, and that certain
     Promissory Note dated January 12, 1998, previously

                                       3
<PAGE>   4

     executed and delivered by Borrower payable to the order of Texas Commerce
     Bank National Association (now known as "Chase Bank of Texas, National
     Association"), in the face amount of $2,500,000.00 and all such
     indebtedness hereafter shall be governed by and payable in accordance with
     the terms hereof. Borrower agrees to pay all unpaid interest accrued under
     the Amended and Restated Note as of the date hereof on the next Interest
     Payment Date.

29.  CONTROLLING DOCUMENT. To the extent that this Note conflicts with or is in
     any way incompatible with any other document related specifically to the
     loan evidenced by this Note, this Note shall control over any other such
     document, and if this Note does not address an issue, then each other such
     document shall control to the extent that it deals most specifically with
     an issue.

30.  ARBITRATION. ANY CONTROVERSY OR CLAIM BETWEEN OR AMONG THE PARTIES HERETO
     INCLUDING BUT NOT LIMITED TO THOSE ARISING OUT OF OR RELATING TO THIS
     INSTRUMENT, AGREEMENT OR DOCUMENT OR ANY RELATED INSTRUMENTS, AGREEMENTS OR
     DOCUMENTS, INCLUDING ANY CLAIM BASED ON OR ARISING FROM AN ALLEGED TORT,
     SHALL BE DETERMINED BY BINDING ARBITRATION IN ACCORDANCE WITH THE FEDERAL
     ARBITRATION ACT (OR IF NOT APPLICABLE, THE APPLICABLE STATE LAW), THE RULES
     OF PRACTICE AND PROCEDURE FOR THE ARBITRATION OF COMMERCIAL DISPUTES OF
     J.A.M.S./ ENDISPUTE OR ANY SUCCESSOR THEREOF ("J.A.M.S."), AND THE "SPECIAL
     RULES" SET FORTH BELOW. IN THE EVENT OF ANY INCONSISTENCY, THE SPECIAL
     RULES SHALL CONTROL. JUDGMENT UPON ANY ARBITRATION AWARD MAY BE ENTERED IN
     ANY COURT HAVING JURISDICTION. ANY PARTY TO THIS INSTRUMENT, AGREEMENT OR
     DOCUMENT MAY BRING AN ACTION, INCLUDING A SUMMARY OR EXPEDITED PROCEEDING,
     TO COMPEL ARBITRATION OF ANY CONTROVERSY OR CLAIM TO WHICH THIS AGREEMENT
     APPLIES IN ANY COURT HAVING JURISDICTION OVER SUCH ACTION.

                  A. SPECIAL RULES. THE ARBITRATION SHALL BE CONDUCTED IN THE
         COUNTY OF ANY BORROWER'S DOMICILE AT THE TIME OF THE EXECUTION OF THIS
         INSTRUMENT, AGREEMENT OR DOCUMENT AND ADMINISTERED BY J.A.M.S. WHO WILL
         APPOINT AN ARBITRATOR; IF J.A.M.S. IS UNABLE OR LEGALLY PRECLUDED FROM
         ADMINISTERING THE ARBITRATION, THEN THE AMERICAN ARBITRATION
         ASSOCIATION WILL SERVE. ALL ARBITRATION HEARINGS WILL BE COMMENCED
         WITHIN 90 DAYS OF THE DEMAND FOR ARBITRATION; FURTHER, THE ARBITRATOR
         SHALL ONLY, UPON A SHOWING OF CAUSE, BE PERMITTED TO EXTEND THE
         COMMENCEMENT OF SUCH HEARING FOR UP TO AN ADDITIONAL 60 DAYS.

                  B. RESERVATION OF RIGHTS. NOTHING IN THIS ARBITRATION
         PROVISION SHALL BE DEEMED TO (I) LIMIT THE APPLICABILITY OF ANY
         OTHERWISE APPLICABLE STATUTES OF LIMITATION OR REPOSE AND ANY WAIVERS
         CONTAINED IN THIS INSTRUMENT, AGREEMENT OR DOCUMENT; OR (II) BE A
         WAIVER BY BANK OF THE PROTECTION AFFORDED TO IT BY 12 U.S.C. SEC. 91 OR
         ANY SUBSTANTIALLY EQUIVALENT STATE LAW; OR (III) LIMIT THE RIGHT OF
         BANK HERETO (A) TO EXERCISE SELF HELP REMEDIES SUCH AS (BUT NOT LIMITED
         TO) SETOFF, OR (B) TO FORECLOSE AGAINST ANY REAL OR PERSONAL PROPERTY
         COLLATERAL, OR (C) TO OBTAIN FROM A COURT PROVISIONAL OR ANCILLARY
         REMEDIES SUCH AS (BUT NOT LIMITED TO) INJUNCTIVE RELIEF, WRIT OF
         POSSESSION OR THE APPOINTMENT OF A RECEIVER. BANK MAY EXERCISE SUCH
         SELF HELP RIGHTS, FORECLOSE UPON SUCH PROPERTY, OR OBTAIN SUCH
         PROVISIONAL OR ANCILLARY REMEDIES BEFORE, DURING OR AFTER THE PENDENCY
         OF ANY ARBITRATION PROCEEDING BROUGHT PURSUANT TO THIS INSTRUMENT,
         AGREEMENT OR DOCUMENT. NEITHER THIS EXERCISE OF SELF HELP REMEDIES NOR
         THE INSTITUTION OR MAINTENANCE OF AN ACTION FOR FORECLOSURE OR
         PROVISIONAL OR ANCILLARY REMEDIES SHALL CONSTITUTE A

                                       4
<PAGE>   5

          WAIVER OF THE RIGHT OF ANY PARTY, INCLUDING THE CLAIMANT IN ANY SUCH
          ACTION, TO ARBITRATE THE MERITS OF THE CONTROVERSY OR CLAIM
          OCCASIONING RESORT TO SUCH REMEDIES.

Borrower represents to Bank that the proceeds of this loan are to be used
primarily for business, commercial or agricultural purposes. Borrower
acknowledges having read and understood, and agrees to be bound by, all terms
and conditions of this Note.

NOTICE OF FINAL AGREEMENT:

THIS WRITTEN PROMISSORY NOTE REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES,
AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT
ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN
THE PARTIES.

<TABLE>
<S>                                             <C>
Bank: THE CHASE MANHATTAN BANK                  Borrower: PEERLESS MFG. CO.

By: /s/                                         By: /s/
    -----------------------------------             -----------------------------------
    Michael B. Phillips, Vice President             Sherrill Stone, Chairman and
                                                    Chief Executive Officer
</TABLE>

                                       5

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00020-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00020-of-00352.parquet"}]]