2 8020 x smiths ohm

Aerospace Mechanical Systems—Yakima

TO: HOLDERS OF QUANTITY MEASURING FUSE ASSEMBLY (P/N 2-8020) COMPONENT MAINTENANCE MANUAL 32-31-04

REVISION NO. 12, DATED April 30, 2007HIGHLIGHTS

Pages which have added or revised material are outlined below with the highlights of the revision. If this data con-sists of selected revision pages, please remove the affected pages from the manual of the previous revision and insert the newly revised pages. Upon completion, make the appropriate entries for the new revision on the RECORD OF REVISIONS page in the front of the updated manual. If this data consists of a newly revised manual in its entirety, please discard the entire old revision in which case no entry on the RECORD OF REVISIONS page will be required.

Chapter/Sectionand Page No.

Description of Change Effectivity

Title Page Added -25 through -29 configurations, along with Boeing part numbers. All Models

Record of Revisions Added Revision 12. All Models

List of Effective Pages Changed dates of effected pages, LEP 1 and 2. All Models

T/C-1, -2, -3, -4 Updated to reflect addition of -25 through -29 configurations. All Models

INTRO 1 Updated contact information. All Models

INTRO 2 Updated List of Abbreviations. All Models

Updated to reflect addition of -25 through -29 configurations. All Models

Page 2 Added -25 configuration to Figure 1A caption. All Models

Page 3 Added -26, -27, -28 and -29 configurations to Figure 1B caption. All Models

Pages 5, 6 Added -25, -26, -27, -28 and -29 configurations to Table 3. All Models

Page 101 Deleted redundant vendor information. All Models

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Page 1 of 4



REVISION NO. 12, DATED April 30, 2007HIGHLIGHTS (cont’d)



Page 102, 103 Repaginated. All Models

Page 104 Paragraph 4.B.2 added -29 configuration. All Models

Pages 105, 106 Repaginated. All Models

Page 107 Re-drew Figure 102. All Models

Page 108 Repaginated. All Models

Page 109 Added IPL Items (315) and (320) to Proof Pressure Test. All Models

Pages 111 through 116 Repaginated. All Models

Page 117 Added -25 configuration. All Models

Page 118 Added -26 and -27 configuration. All Models

Page 119 Added -28 and -29 configuration. All Models

Page 301 Paragraph 3.B and 3.C, added IPL items (315) and (320). All Models

Page 302 Paragraph 3.D through 3.G, added IPL iItems (315) and (320). All Models

Page 501 Table 501, item D, deleted “Chatillon” reference. All Models

Page 502 Table 502, added IPL items (315) and (320) to “Housing.” All Models

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Page 601 Updated Smiths nomenclature. All Models


Page 702 Paragraphs 4.N and 4.O, added IPL items (315) and (320). All Models

Page 802 Reformatted. All Models

Page 901 Deleted redundant vendor information. All Models

Page 1003 Updated vendor information. All Models

Page 1004 Added -25, -26, -27, -28 and -29 configurations. All Models

Page 1005 Added IPL items (315) and (320). All Models

Page 1019 Added Figure 1N for the -25 configuration. All Models

Page 1020 Added Figure 1P for the -26 configuration. All Models

Page 1021 Added Figure 1Q for the -27 configuration. All Models

Page 1022 Added Figure 1R for the -28 configuration. All Models

Page 1023 Added Figure 1S for the -29 configuration. All Models

Page 1024 Added -25, -26, -27, -28 and -29 configurations. All Models

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Page 1026 Added IPL items (315) and (320). All Models

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COMPONENT MAINTENANCE MANUALWITH

ILLUSTRATED PARTS LIST

32-31-04


FOR EUROPE, AFRICA, INDIAAND MIDDLE EAST CONTACT:Smiths AerospaceCustomer Services - Cheltenham,Bishops Cleeve, CheltenhamGlos. GL52 8SF, United KingdomTelephone: + 44 (0) 1242 673355Facsimile: + 44 (0) 1242 669165E-Mail: [email protected]

FOR ASIA, AUSTRALASIA, AND THE PACIFIC CONTACT:Smiths Aerospace Australia Pty Ltd.3 Hakea StreetBrisbane Airport, QLD4007, AustraliaTelephone: + 61 7 3860 0700Facsimile: + 61 7 3860 0701E-Mail: [email protected]

FOR THE AMERICAS CONTACT:Smiths AerospaceP.O. Box 9013, Clearwater, FL 33758United States of America

Telephone: + 1 (727) 539 1631Facsimile: + 1 (727) 539 0680E-Mail: [email protected]

© Smiths Group plc 2001.

Uncontrolled when reproduced

These commodities, technology or software are exported from the United States in accordance with the Export Administration Regulations. Diversion contrary to U.S. law prohibited. ECCN#9E991

FUSE ASSEMBLY,QUANTITY MEASURING

SAMS-Y P/N: 2-8020-1 2-8020-2 2-8020-3 2-8020-5 2-8020-6 2-8020-11 2-8020-12 2-8020-13 2-8020-142-8020-15 2-8020-16 2-8020-18 2-8020-242-8020-252-8020-262-8020-272-8020-282-8020-29

Page T-1/T-2

Apr 30/07

BOEING P/N: S274A100-1S274A100-2 S274A100-3 S274A100-5 S274A100-6 10-62204-11 10-62204-12 10-62204-13 10-62204-14 10-62204-15 10-62204-16 S273N203-4 10-62204-24S274A100-11S274A100-12S274A100-13S274A100-15S274A100-16

2-8020

RECORD OF REVISIONS

Keep this record in the front of the manual. When you get a revision, put the revised pages into the manual and write the revision number, the date and your initials.

REVISIONNUMBER

REVISIONDATE

DATEFILED

BY REVISIONNUMBER

REVISIONDATE

DATEFILED

BY

N/C 8/96

1 10/96

2 5/97

3 11/98

4 4/99

5 9/99

6 9/00

7 1/01

8 5/02

9 9/03

10 1/06

11 6/06

12 4/30/07

32-31-04Uncontrolled when reproducedPage RR-1/2

Apr 30/07

2-8020

RECORD OF TEMPORARY REVISIONS

Keep this record in the front of the manual. When you get a revision, put the revised pages into the manual and write the revision number, the date and your initials.

REVISIONNUMBER

ISSUE DATE DATEINSERTED

REMOVALDATE

PUT INBY

REMOVEDBY

32-31-04Uncontrolled when reproducedPage RTR-1/2

May 23/02

2-8020

SERVICE BULLETIN RECORD

SERVICEBULLETINNUMBER

DATEOF

ISSUE

SERVICEBULLETINREVISIONNUMBER

MANUALREVISION

DATEPURPOSE OF SERVICE BULLETIN

32-31-04Uncontrolled when reproducedPage SB-1/2

May 23/02

2-8020

LIST OF EFFECTIVE PAGES

SUBJECT PAGE DATE SUBJECT PAGE DATE

Title T-1 Apr 30/07 Testing and Troubleshooting (cont’d)

109 Apr 30/07T-2 Blank 110 Apr 30/07

111 Apr 30/07Record of Revisions RR-1 Apr 30/07 112 Apr 30/07

RR-2 Blank 113 Apr 30/07114 Apr 30/07

Record of Temporary Revisions

RTR -1 May 23/02 115 Apr 30/07RTR-2 Blank 116 Apr 30/07

117 Apr 30/07Service Bulletin Record SB-1 May 23/02 118 Apr 30/07

SB-2 Blank 119 Apr 30/07120 Blank

List of Effective Pages LEP-1 Apr 30/07LEP-2 Apr 30/07 Disassembly 301 Apr 30/07

302 Apr 30/07Table of Contents T/C-1 Apr 30/07

T/C-2 Apr 30/07 Cleaning 401 May 23/02T/C-3 Apr 30/07 402 May 23/02T/C-4 Apr 30/07 403 May 23/02

404 BlankIntroduction INTRO-1 Apr 30/07

INTRO-2 Apr 30/07 Check 501 Apr 30/07502 Apr 30/07

Description and Operation

1 Apr 30/07 503 May 23/022 Apr 30/07 504 May 23/023 May 23/024 May 23/02 Repair 601 Apr 30/075 Apr 30/07 602 Apr 30/076 Apr 30/07

Assembly 701 May 23/02Testing and Troubleshooting

101 Apr 30/07 702 Apr 30/07102 Apr 30/07 703 May 23/02103 Apr 30/07 704 Blank104 Apr 30/07105 Apr 30/07 Fits and Clearances 801 Apr 30/07106 Apr 30/07 802 Apr 30/07107 Apr 30/07108 Apr 30/07 Special Tools, Fixtures

and Equipment901 Apr 30/07902 Blank

32-31-04Uncontrolled when reproducedPage LEP-1

Apr 30/07

2-8020

LIST OF EFFECTIVE PAGES (cont’d)

SUBJECT PAGE DATE SUBJECT PAGE DATE

Illustrated Parts List 1001 May 23/021002 May 23/021003 Apr 30/071004 Apr 30/071005 Apr 30/071006 June 1/061007 June 1/061008 June 1/061009 June 1/061010 June 1/061011 June 1/061012 Jan 19/061013 June 1/061014 June 1/061015 June 1/061016 June 1/061017 June 1/061018 June 1/061019 Apr 30/071020 Apr 30/071021 Apr 30/071022 Apr 30/071023 Apr 30/071024 Apr 30/071025 Apr 30/071026 Apr 30/07

32-31-04Uncontrolled when reproducedPage LEP-2

Apr 30/07

2-8020

TABLE OF CONTENTS

PARAGRAPH TITLE PAGE

Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 A. Theory Of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 B. Fusing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 C. Threshold Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 D. Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 E. Reverse Flow Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2. Leading Particulars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Testing/Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1012. Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1013. Preparation for Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

A. Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 B. Test Measurement Accuracy and Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

4. Test Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 A. Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 B. Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

(1) Proof Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 (2) Reverse Flow Test (-6, -16, -29 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104 (3) Reverse Flow Test (-14, -18, and -24 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104 (4) Internal Leakage Test (Part 1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 (5) Internal Leakage Test (Part 2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 (6) Pressure Drop Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105 (7) Volumetric Capacity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 (8) Reset Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107 (9) Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108

Table 103 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109Table 104 Test Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

Automatic Test Requirements (ATLAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (N/A)

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3012. Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3013. Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401

1. Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401

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TABLE OF CONTENTS (cont’d)


2. Solvent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4013. General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4014. Cleaning Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402

A. Precleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402 B. Final Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402 C. Removal of Hydraulic Fluids and Soils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402

Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 501

Table 501 Check Tools and Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .501Table 502 Inspection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .502

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 601

1. Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6012. Refinish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601

A. Anodized Finishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6013. Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601

A. Insert (65) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601 B. Swivel Nut (165/175/275/300) and Retainer Wire (170/180/280/305) . . . . . . . . . . . . . . . . . .601

4. Repair Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .602

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7012. Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7013. Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7014. Assembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7015. Storage Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .702

A. Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .702 B. Packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .703 C. Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .703

Fits and Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 801

1. Fits and Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8012. Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .802

Table 801 Critical Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .801Table 803 Torque Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .802


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TABLE OF CONTENTS (cont’d)


Special Tools, Fixtures and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 901

1. Tool and Equipment—General Overhaul/Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .901

Illustrated Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1001

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 A. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 B. Explanation and Usage of Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001

(1) Assembly Order Indenture System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 (2) Part Numbering System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 (3) Effectivity Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 (4) Units Per Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 (5) Parts Replacement Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001 (6) Items Not Illustrated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1002 (7) Alpha Variant Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1002 (8) Service Bulletin Modifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1002

2. Vendor Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1003

LIST OF ILLUSTRATIONS


1. Figure 1A Quantity Measuring Fuse Assy 2-8020 -1, -11, -12, -13, -25 . . . . . . . . . . . . . . .22. Figure 1B Quantity Measuring Fuse Assembly 2-8020-2, -3, -5, -6, . . . . . . . . . . . . . . . . .3

-14, -15, -16, -18, -24, -26, -27, -28, and -293. Figure 2A Modes of Operation—Forward Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34. Figure 2B Modes of Operation—Fused Forward Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . .45. Figure 2C Modes of Operation—Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46. Figure 2D Modes of Operation—Reverse Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47. Figure 101 Test Setup Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1038. Figure 102 Accumulator Piston Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1079. Figure 802 Critical Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80210. IPL Figure 1 Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . .1006

2-8020-111. IPL Figure 1A Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .1007

2-8020-212. IPL Figure 1B Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .1008

2-8020-313. IPL Figure 1C Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .1009

2-8020-514. IPL Figure 1D Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .1010

2-8020-6


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2-8020

LIST OF ILLUSTRATIONS (cont’d)


15. IPL Figure 1E Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10112-8020-11

16. IPL Figure 1F Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10122-8020-12

17. IPL Figure 1G Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10132-8020-13

18. IPL Figure 1H Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10142-8020-14

19. IPL Figure 1J Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10152-8020-15

20. IPL Figure 1K Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10162-8020-16

21. IPL Figure 1L Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10172-8020-18

22. IPL Figure 1M Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10182-8020-24

23. IPL Figure 1N Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10192-8020-25

24. IPL Figure 1P Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10202-8020-26

25. IPL Figure 1Q Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10212-8020-27

26. IPL Figure 1R Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10222-8020-28

27. IPL Figure 1S Exploded View, Quantity Measuring Fuse Assembly . . . . . . . . . . . . . . . . . .10232-8020-29


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2-8020

INTRODUCTION

THE QUANTITY MEASURING FUSE ASSEMBLY IS A PRECISION MACHINED, SENSITIVE ASSEMBLY WHICH REQUIRES STRINGENT TESTING. IT IS RECOMMENDED THAT UNITS BE RETURNED TO SMITHS AEROSPACE MECHANICAL SYSTEMS - YAKIMA (SAMS—Y) FOR OVERHAUL AND REPAIR. THE CRITICALITY OF THE PRECISION AND SENSITIVITY IS SUCH THAT THE ONLY AUTHORIZED FIELD REPAIR IS REMOVAL AND REPLACEMENT OF FIT-TINGS AND SEALS SPECIFIED HEREIN.

The instructions in this manual provide the information necessary to perform maintenance functions rang-ing from simple checks and replacement to complete shop type repair.

The manual is divided into separate sections:

1. Title Page 5. List of Effective Pages2. Record of Revisions 6. Table of Contents3. Record of Temporary Revisions 7. Introduction4. Service Bulletin Record 8. Procedures and IPL Sections

Refer to the Table of Contents for the page location of applicable sections.

An explanation of the use of the Illustrated Parts List is provided in the Introduction to the section.All weights and measurements in the manual are in English units, unless otherwise stated.The manual will be revised as necessary to reflect current information.

VERIFICATION

Assembly ................................................................... TBDDisassembly .............................................................. TBDTest/Troubleshooting.................................................. TBD

Product Support Services

Repair and overhaul services, replacement parts, technical documentation and other product support ser-vices are available from Smiths Aerospace Mechanical Systems—Yakima. Please contact:

Smiths Aerospace Mechanical Systems—Yakima2720 W. Washington Ave.Yakima, WA 98903-2513Telephone: 509-248-5000Fax: 509-452-7022

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2-8020

LIST OF ABBREVIATIONS

AR As Required°C Degrees Celsius (°F-32 * (5/9))cu Cubiccm Centimeters (1 cm = 0.394 inch)cc Cubic Centimeters (1 cc = 0.061023 in3)SAMS-Y Smiths Aerospace Mechanical Systems—Yakima°F Degrees Fahrenheit (°C/(5/9)+32)ft Foot (1 Foot = 0.3048 meter)ft-lb Foot Pounds (1 ft-lb = 1.356 Nm)gpm Gallons Per MinuteID Inside DiameterIPL Illustrated Parts Listin Inch (1 Inch = 2.54 cm)in/lb Inch Poundskg Kilograms (1 kg = 2.205 lb)kPa KiloPascals (1 kPa = 0.145 psi)l Liter (1 Liter = 0.2641 gal)lb Pound (1 lb = 0.4563 kg)lpm Liter Per Minute (1 lpm = 0.264 gpm)LRU Line Replaceable UnitMax Maximumml Millilitermm Millimeters (1 mm = 0.0394 inch)Min MinimumN Newton (1 N = .0225 lb)Nm Newton Meters (1 Nm = 0.7376 ft-lbs)OD Outside Diameteroz Ounce (1 ounce = 29.573 ml)P/N Part Numberppm Parts Per Millionpsi Pounds Per Square Inch (1 psi = 6.8949 kPa)psid Pounds Per Square Inch Differentialpsig Pounds Per Square Inch GageRef ReferenceBar (1 Bar = 14.504 psi)

32-31-04Uncontrolled when reproducedPage INTRO 2

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2-8020

DESCRIPTION AND OPERATION

1. Description

The 2-8020 fuse consists of 18 different configurations. These configurations have been developed to sat-isfy the scope of performance parameters dictated by each application. These parameters include reverse flow, minimum flow, pressure drop, volumetric capacity and reset flow. Each fuse configuration has been designed to accommodate specific dimensional, weight and hydraulic interface requirements.

Figure 1A depicts the fuse assemblies which utilize an MS fitting on the inlet side. Figure 1B depicts the fuse assemblies which utilize a NAS swivel nut on the inlet side.

A. Theory of Operation

The DAY fuse assembly uses a metering valve to divide the flow into two parallel paths (metering flow and main through flow) which provides for a positive force margin across the fusing piston minimizing the effects of contamination and operating attitude on fuse performance, providing more consistent per-formance at low flow rates.

The fuse assembly is mechanically a very simple device. The unit was designed with maximum metering volume in order to maximize the metering orifice size which provides for better cold temperature perfor-mance.

B. Fusing Function

The fuse assembly has two major sections: the fluid flow metering valve and the fluid collection cavity/shutoff valve. The metering valve acts to divide the fluid flow into two separate flow paths as flow moves past the metering cone. Before there is sufficient flow to be divided, fluid flows through the fuse in the fusing direction, and differential pressure acts on the reverse slide as well as the metering cone to com-pletely close off the reset holes in the metering body before there is sufficient differential pressure to be-gin moving the piston. These holes are also completely covered by the metering cone before main flow can occur and before the metering orifice is exposed. As the flow increases up to the threshold flow of the unit, the main flow moves between the reverse slide and the metering cone, around the metering cav-ity, and then exits through the outlet of the fuse. At the same time a portion of the inlet flow is metered into the fluid collection cavity by a small hole in the metering body. This metered flow fills the fluid col-lection cavity with fluid and forces the piston onto the seating area on the cylinder, thus stopping fluid flow from the outlet of the fuse.

C. Threshold Function

The specification requires that the fuse be inoperative below a specified flow rate. To achieve this, an orifice in the form of a small flat is machined on the metering cone. The effect of this orifice is that a specific flow rate is required to generate a sufficient delta pressure to fully move the piston to the shutoff position. Below this flow rate the fuse will be inoperative. The flow rates vary among the fuse dash num-ber types presented here. See Table 104 in "Testing/Troubleshooting" for specific flow rates.

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D. Reset Function
Another mechanism has been designed into the fuse to allow reset of the piston at any stroke position. The piston spring is used to drive the piston to the reset position while the fluid in the fluid collection cavity is routed through a set of holes in the metering body. These holes are opened by movement of the metering cone to the "no flow" position.

This movement is accomplished by the metering spring pushing the metering cone against the retaining ring. This allows fluid to exit from the fluid collection cavity, thereby resetting the fuse. The retaining ring, once installed in the unit, is enclosed by the inside diameter of the reverse slide and cannot expand and become dislodged. The fuse resets in "M" seconds. See Table 104 in "Testing/Troubleshooting" for specific reset times.

E. Reverse Flow Function

When reverse flow is applied to the fuse, the metering cone is positioned in its "no flow" position. The reverse slide reacts to the differential pressure by moving against the threshold spring force, thereby opening the flow path between itself and the metering cone.

QUANTITY MEASURING FUSE ASSEMBLY 2-8020-1, -11, -12, -13, -25Figure 1A


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2-8020

QUANTITY MEASURING FUSE ASSEMBLY 2-8020-2, -3, -5, -6, -14, -15, -16, -18, -24, -26, -27, -28, -29Figure 1B

MODES OF OPERATION—FORWARD FLOWFigure 2A

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MODES OF OPERATION—FUSED FORWARD FLOWFigure 2B

MODES OF OPERATION—RESETFigure 2C

MODES OF OPERATION—REVERSE FLOWFigure 2D


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2-8020
2. Leading Particulars
Additional descriptive details and characteristics are tabulated in Table 3.

A. Fluid and Pressure Data

Fluid Media: Hydraulic Fluid per BMS 3-11Operating Pressure: 3000 psig (20685 kPa)Proof Pressure: 4500 psig (31027 kPa)Burst Pressure: 7500 psig 51712 kPa)

B. Environmental Data

Operating Temperatures:

Ambient: - 65° F to +160° F (-53.9° to +71.1° C)Fluid: - 40° F to + 225°F (-40° to +107° C)

C. Flow Rate

See Table 104 "Test/Troubleshooting" section, for specific flow references.

The fuse will shut off flow when a fluid volume of "J" has passed through the fuse at a rate of "K" at a fluid temperature of +70° to +110°F (+21.1°to +43.3°C).

Table 3 LEADING PARTICULARS

Length Overall: 2-8020-1, -5, -25, -28 . . . . . . . . . . . . . . . . . . . . . . . . @ 6.82 in. (17.32 cm)2-8020-2, -26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 6.50 in. (16.51 cm)2-8020-3,-12, -27. . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 7.16 in. (18.19 cm)2-8020-6,-16, -29. . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 5.83 in. (14.80 cm)2-8020-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 7.19 in. (18.26 cm)2-8020-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 6.68 in. (16.97 cm)2-8020-14, -24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 6.34 in. (16.10 cm)2-8020-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 6.21 in. (15.77 cm)2-8020-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 6.64 in. (6.87 cm)

Diameter: 2-8020-1,-2,-3,-5,-6,-11,-14,-15,-16, -24 . . . . . . . . . @ 1.75 in. (4.45 cm)2-8020-12,-13,-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.59 in. (4.04 cm)2-8020-25, -26, -27, -28, -29 . . . . . . . . . . . . . . . . . . . @ 1.565 in. (3.98 cm)

Dry Weight: 2-8020-1, -5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.49 lbs. (.676 kg)2-8020-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.38 lbs. (.626 kg)2-8020-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.45 lbs. (.658 kg)2-8020-6, -16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.29 lbs. (.585 kg)2-8020-11,-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.59 lbs. (.721 kg)2-8020-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.70 lbs. (.771 kg)2-8020-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.57 lbs. (.712 kg)


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Dry Weight cont’d: 2-8020-14, -24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.47 lbs. (.667 kg)
2-8020-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.42 lbs. (.644 kg)2-8020-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.66 lbs. (.753 kg)2-8020-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.64 lbs. (.744 kg)2-8020-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.76 lbs. (.798 kg)2-8020-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.74 lbs. (.789 kg)2-8020-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . @ 1.55 lbs. (.703 kg)


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2-8020
TESTING/TROUBLESHOOTING
1. Introduction

Each Quantity Measuring Fuse Assembly shall be subjected to the following tests to prove compliance with design requirements.

2. Test Equipment

NOTE: Equivalent substitutes may be used.

A. Hydraulic Power Supply: 0–5000 psig (34475 kPa)0–30 gpm (0–114 lpm)

Hydraulic Fluid: Per BMS 3-11Fluid Filtration: 15 microns absolute per D6-47173

B. Pressure Gages (V70462).

2 each: 0–200 psi (0-1379 kPa) (Figure 101, Items A and B)2 each: 0–5000 psi (0-34475 kPa) (Figure 101, Items C and D)

C. Miscellaneous Tubing, Fittings, Adapters, etc.

D. Flow Meters (V22375).

1 each: 20 gpm (76.1 lpm), BMS 3-11 Model 8-35-600/70 CG (Figure 101, Item E)1 each: 2 gpm (7.57 lpm), BMS 3-11 Model 10A4555PXA (Figure 101, Item F)

E. 4-Way Valve, 3-Position: 1 each (6000 psi series, P/N 8441M-1/4D52; V 86768). (Figure 101, Item G)

F. 3-Way Valve, 3-Position: 2 each (6000 psi series, P/N 8421M-1/4D52; V86768). (Figure 101, Items H and I)

G. Needle Valve: 7 each (P/N 10FT013T; V97399). (Figure 101, Items J, K, L, M, N, O, P)

H. Check Valve: 1 each (P/N 428-12Y1-6; V86768). (Figure 101, Item Q)

I. Drip Tube: 1 each ( P/N ED 1759; V97415). (Figure 101, Item R)

J. Accumulator: 1 each (Cylinder, P/N PH H16474S (24 in. (61 cm) stroke (EPR Seals); V84561). (Fig-ure 101, Item S)

K. Standard Hydraulic Mechanics’ Tool Chest.

L. Stopwatch, accurate to ±0.1 seconds, or better.


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M. Scale, 20 lbs. (9.07 kg): 1 each (P/N 719-20 MRP; V11710).
N. Calibrated Beaker: 5000 cc, commercially available (Figure 101, item T)

3. Preparation for Testing

A. Test Conditions

Unless otherwise specified, the following conditions shall be maintained during each test. Air shall be bled from each unit prior to testing. Tests to be performed using BMS 3-11 hydraulic fluid.

(1) Ambient Conditions

Temperature: +70°to +90°F (+21.1° to +32.2°C)Humidity: 10%-90%

(2) Hydraulic Fluid Temperature: +70° to +110°F (+21.1° to +43.3°C)

B. Test Measurement Accuracy and Tolerance

(1) All measurements of the test conditions and parameters shall be taken at appropriate locations to ensure that the test unit is exposed to the requirements herein.

(2) Each instrument and other measuring apparatus, upon which the accuracy of the test results depends, shall be calibrated prior to each test or, in the case of periodically calibrated devices, shall display a current calibration sticker.

(3) Calibration records shall be maintained and shall be available for inspection upon request.

(4) The following tolerances on measurements shall apply unless otherwise specifically noted:

Temperature: ± 4°F (± 2°C) Loads: 2%Hydraulic Flow: ± 4% Relative Humidity: 2%Pressure Application: ± 2% Volumetric Capacity: 2%

4. Test Procedure

A. Setup

(1) Visually inspect the fuse assembly to verify good workmanship, correct markings, and to ensure that all parts are properly installed.

(2) Set up the test unit per the schematic of Figure 101.

NOTE: All needle valves are to be closed upon initial test setup.

(3) Flow fluid through the test setup until all air is bled.


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NOTE: For specific performance requirements of each dash number, see Table 104 at the end of this chapter. The requirements “A” through “M” in the test procedure are listed in the table.

Figure 101 TEST SETUP SCHEMATIC

B. Test

(1) Proof Pressure Test

(a) Position valve (I) to allow flow through flowmeter (E).

(b) Close 0–200 psi (0–1379 kPa) gages (A, B) using needle valves (K, L).

(c) Position valves (H,G) for flow to the fuse.

(d) Close bypass needle valve (M), accumulator needle valve (N), drip tube needle valve (O) and needle valve (P).


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(e) Gradually apply 4500 psig (31027 kPa) to the inlet port and hold for 30 seconds minimum.
(f) Reduce hydraulic pressure to zero.

Requirement: After 30 seconds, there shall be no evidence of external leakage, failure, distortion, or permanent set.

(2) Reverse Flow Test (-6, -16, -29 only)

(a) Position valve (G, H) to allow reverse fluid flow into the fuse.

(b) Position valve (I) to allow flow through flowmeter (E), as dictated by flow requirement "E."

(c) Open needle valve (J) completely to allow flow through the selected flowmeter.

(d) Open needle valve (M) to allow reverse flow.

(e) With 0–200 psi (0–1379 kPa) gage (B) needle valve (L) open, and needle valves (O) and (N) closed, apply the required fluid pressure "D" to the fuse in the reverse direction.


Requirement: Fluid shall flow through the fuse at a minimum of the required flow "E" from the inlet port as indicated by the flowmeter.

(3) Reverse Flow Test (-14, -18, and -24 only)

(a) Position valve (G, H) to allow reverse fluid flow into the fuse.

(b) Position valve (I) to allow flow through flowmeter (E), as dictated by flow requirement "E."

(c) Close 0–200 psi (0–1379 kPa) gage (B) using needle valve (L).

(d) Close needle valves (O, N) and apply 3,000 +100/-0 psi (20,685 +689/-0 kPa) hydraulic pressure to the fuse in the reverse direction.

(e) Open needle valve (J) to achieve the required flow "E" through the selected flowmeter.

(f) Observe pressure indicated on pressure gages (C, D).

(g) Reduce hydraulic pressure to zero.

Requirement: Pressure drop across the fuse shall not exceed "D."

(4) Internal Leakage Test (Part 1 of 2)

(a) Close needle valve (J) and open needle valve (M).


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(b) Close needle valves (K, L) for 0–200 psi (0–1379 kPa) gages (A, B) and drip tube needle valve (O) [Leave needle valves (K, L) open for P/Ns 2-8020-14, 2-8020-18, and 2-8020-24].

(c) Position valve (G) to allow fluid flow in the fusing direction.

(d) Position valve (I) to allow flow through flowmeter (E).

(e) Apply 3000 +100/-0 psig (20685 +689.5/-0 kPa) [35/45 psig (241/310 kPa) for P/Ns 2-8020-14, 2-8020-18, and 2-8020-24] to inlet port of fuse.

(f) Gradually open valve (J) until unit fuses

(g) After flow has stopped close needle valve (M), open drip tube valve (O) and maintain 3000 psig (20685 kPa)[35/45 psig (241/310 kPa) for P/Ns 2-8020-14, 2-8020-18, and 2-8020-24] pressure for 3 minutes.

Requirement: Leakage measurement conducted during the first 2 minutes shall not exceed the required drops per minute "A." Leakage measurement con-ducted during the last minute shall not exceed the required drops per minute "B."

(5) Internal Leakage Test (Part 2 of 2)

NOTE: This test is not required for P/Ns 2-8020-14, or 2-8020-24.

(a) Reduce pressure from 3000 psig (20685 kPa) to 35/45 psig (241/310 kPa). [Close needle valves (K,L), increase to 3000 +100/-0 psig (20685 +689.5/-0 kPa) for 2-8020-18].

(b) Open 0–200 psi (0–1379 kPa) gage (A) using valve (K). Fuse shall remain fused.

(c) Observe for leakage for one minute, reduce hydraulic pressure to zero and close drip tube valve (O).

Requirement: Leakage measurement shall be conducted for one minute and shall not exceed the required leakage "C." There shall be no evidence of external leakage.

(6) Pressure Drop Test

(a) Position valve (G) to allow fluid flow in the fusing direction.

(b) Close needle valve (J).

(c) With valves (H, I) set to allow fluid flow through flowmeter (E) or (F), as dictated by flow rate "F," apply 3000 +100/-0 psig (20685 +689/-0 kPa) at the inlet, gradually open valve (J) to obtain the required flow rate "F."


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(d) With valve (G) positioned to allow forward flow through the fuse, position valve (H) to allow forward flow through the fuse.

(e) Observe pressure drop across fuse.

(f) Reduce hydraulic pressure to zero and close return line needle valve (J).

Requirement: Pressure drop shall not exceed the required pressure drop "G."

(7) Volumetric Capacity Test

(a) Close needle valve (M) and open needle valve (N).

(b) Position valve (G) to allow reverse fluid flow into the fuse.

(c) Close 0–200 psi (0–1379 kPa) gages (A, B) using needle valves (K, L).

NOTE: If piston is already bottomed in accumulator, proceed with step (7e).

(d) Gradually apply 30–50 psig (206.8–345 kPa) hydraulic pressure in the reverse direction until accumulator (S) piston is completely retracted.

(e) With piston fully bottomed in accumulator, measure height of piston shaft and record this dimension as dimension "A," as depicted in Figure 102.


(g) With valve (H) and valve (I) set to allow fluid flow through 2 gpm (7.57 lpm) flowmeter (F), apply 3000 +50/-0 psig (20685 +345/-0 kPa) at the inlet, gradually open valve (J) to obtain the required flow rate "H."

(h) Position valve (G) to allow forward flow to the fuse.

(i) Position valve (H) to allow forward flow through the fuse.

(j) After unit has fused, determine the volume of fluid that passed through unit as follows (See figure 102):

1) Measure extended height of accumulator piston and record as dimension "B," as depicted in Figure 102.

2) Subtract dimension "A" (refer to step (7e) from dimension "B" and multiply the remain-der X piston area (in2) = fused volume. This value shall be within the corresponding limit "J," taken from Table 104.

(k) Reduce hydraulic pressure to zero and close valve (J).


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(l) Repeat steps (7b) through (7e) to reset accumulator (S).

(m) Repeat steps (7d) through (7k) using the next corresponding flow rate "H."

(n) As required, adjust valves (G) and (I) to allow fluid flow through flowmeter (E) or (F).

(o) Repeat steps (7l) through (7n) until all flow rates "H" have been run.

(8) Reset Test

(a) With valves (H) and (I) set to allow fluid flow through flowmeter (E) or (F), as dictated by flow rate "K," apply 3000 +100/-0 psig (20685 +689/-0 kPa) at the inlet, gradually open valve (J) to obtain the required flow rate "K."

NOTE: Accumulator piston shall be fully bottomed. If it is not, refer to step (7l).

(b) With piston fully bottomed in accumulator, measure height of piston shaft and record this dimension as dimension "A," as depicted in Figure 102.

(c) With valve (G) positioned to allow forward flow through the fuse, position valve (H) to allow forward flow through the fuse.

(d) After the fluid flow has stopped, measure the extended length of the accumulator piston and record as dimension "B," as depicted in Figure 102.

ACCUMULATOR PISTON MEASUREMENTFigure 102

(e) Reduce the differential pressure to 0–5 psid (0–34 kPa) by closing needle valve (N) and opening needle valve (P) for a period of "L" seconds maximum.


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NOTE: THE ORDER OF VALVE OPERATION MUST COINCIDE WITH THIS PRO-
CEDURE.

(f) Instantly reapply the required flow "K" to the fuse by reversing step (8e). After fluid flow has stopped again, measure extended height of accumulator piston and record as dimension "C." Subtract dimension "A" from "B" to obtain first fused volume. Subtract dimension "B" from "C" to obtain second fused volume. Both fused volumes shall be within 10 cubic inches (164 cc) of each other, and each fused volume shall be within the limits "M."

(9) Fault Isolation

Malfunctions that may have been detected during testing of the Quantity Measuring Fuse Assembly are listed in Table 103 along with the probable cause of malfunction and the recommended reme-dies.

NOTE: Numbers shown in parentheses refer to item numbers in IPL Figure 1.


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Table 103 TROUBLESHOOTING(Sheet 1 of 2)

MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION

PROOF PRESSURE:

External Leakage:

1) Leakage between housing (5/75/110/185/215/225/235/250A/290/315/320) and outlet plug (10/80/115/190)

2) Leakage between housing (5/75/110/185/215/225/235/250A/290/315/320) and inlet plug (15/85/120/130/195/255/295)

1) Defective packing (145) and/or pack-ing retainers (155)

2) Defective packing (150) and/or pack-ing retainers (160)

1) Replace packing (145) and/or packing retainers (155)

2) Replace packing (150) and/or packing retainers (160)

REVERSE FLOW:

1) Fluid fails to flow through fuse per Table 104 requirements

1) Defective or blocked metering cylinder (105/270/285) and/or reverse flow slide (250) and/or inlet plug (120/130/255) and/or outlet plug (10/80/115)

1) Replace or unblock metering cylinder (105/270/285) and/or reverse flow slide (25) and/or inlet plug (120/130/255) and/or outlet plug (10/80/115)

INTERNAL LEAKAGE:

1) Leakage exceeds Table 104 require-ments

1) Defective outlet plug (10/80/115/190) and/or seal (70) and/or piston (20/90/200/220)

1) Replace outlet plug (10/80/115/190) and/or seal (70) and/or piston (20/90/200/220)

PRESSURE DROP:

1) Pressure differential in excess of Table 104 requirements

1) Defective or blocked inlet plug (15/85/120/130/195/255/295) and/or outlet plug (10/80/115/190/) and/or reverse flow slide (25) and/or metering cylin-der (40/105/125/210/230/245/270/285) and/or metering body (35/100/100A/205/240/265) and/or metering cone (30/95/260)

1) Replace or unblock inlet plug (15/85/120/130/195/255/295) and/or outlet plug (10/80/115/190/) and/or reverse flow slide (25) and/or metering cylin-der (40/105/125/210/230/245/270/285) and/or metering body (35/100/100A/205/240/265) and/or metering cone (30/95/260)


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2-8020

Table 103 TROUBLESHOOTING(Sheet 2 of 2)

MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION

VOLUMETRIC CAPACITY:

1) Fuses below acceptable volume

2) Fuses above acceptable volume

3) Does not fuse

1) Defective piston spring (45) and/or metering spring (55/310) and/or seal (70) and/or metering cylinder (40/105/125/210/230/245/270/285) and/or metering cone (30/95/260) and/or metering body (35/100/100A/205/240/265) and/or reverse flow slide (25)

2) See 1 above

3) See 1 above

1) Replace piston spring (45) and/or metering spring (55/310) and/or seal (70) and/or metering cylinder (40/105/125/210/230/245/270/285) and/or metering cone (30/95/260) and/or metering body (35/100/100A/205/240/265) and/or reverse flow slide (25)

2) See 1 above

3) See 1 above

RESET:

1) Does not reset in specified time

2) Volumes are not within specified limits

1) Defective piston spring (45) and/or pis-ton (20/90/200/220) and/or metering cylinder (40/105/125/210/230/245/270/285)

2) Defective piston spring (45) and/or pis-ton (20/90/200/220) and/or metering cylinder (40/105/125/210/230/245/270/285)

1) Replace piston spring (45) and/or pis-ton (20/90/200/220) and/or metering cylinder (40/105/125/210/230/245/270/285)

2) Replace piston spring (45) and/or pis-ton (20/90/200/220) and/or metering cylinder (40/105/125/210/230/245/270/285)

NOTE: Numbers shown in parentheses refer to item numbers in IPL Figure 1


Page 110

2-8020
Table 104 TEST REQUIREMENTS
(sheet 1 of 9)

FUSE ASSEMBLY 2-8020-1TEST REQUIREMENTS

Reverse Flow Test N/A

Internal Leakage "A" 15 drops/min"B" 5 drops/min"C" 10 cc/min

Pressure Drop Tests "F" 8.0 gpm (30.3 lpm)"G" 100 psid (689.5 kPa)

Volumetric Capacity Test "H" gpm (lpm) "J" in3 (cc)

0.6 (2.3) 170–220 (2786–3605) 4.0 (15.1) 160–220 (2622–3605)

10.0 (37.8) 160–220 (2622–3605)

Reset Test "K" 8.0 gpm (30.3 lpm) "L" 5.0 seconds

"M" 160–220 in3 (2622–3605 cc)






0.16 (0.61) 50–220 (819–3605)1.0 (3.8) 165–220 (2704–3605)2.0 (7.6) 165–220 (2704–3605)5.0 (18.9) 165–220 (2704–3605)


"M" 160–220 in3 (2622–3605 cc)


Page 111

2-8020
(sheet 2 of 9)






0.16 (0.61) 50–375 (819–6145)0.7 (2.7) 320–390 (5244–6391)1.0 (3.8) 320–390 (5244–6391)2.0 (7.6) 320–375 (5244–6145)


"M" 320–390 in3 (5244–6391 cc)






0.6 (2.3) 275–330 (4507–5408) 4.0 (15.1) 210–330 (3441–5408)

11.0 (41.6) 240–330 (3933–5408)


"M" 230–330 in3 (3769–5408 cc)


Page 112

2-8020
(sheet 3 of 9)


Reverse Flow Test "D" 100 psi (690 kPa)"E" 3.0 gpm (11.4 lpm)

Internal Leakage “A” 15 drops/min"B" 5 drops/min"C" 10 cc/min



0.6 (2.3) 115–140 (1885–2294)2.0 (7.6) 115–140 (1885–2294)4.0 (15.1) 100–140 (1639–2294)


"M" 100–140 (1639–2294 cc)






0.6 (2.3) 165–215 (2704–3523) 2.0 (7.6) 165–240 (2704–3933) 8.0 (30.3) 150–240 (2458–3933)

12.0 (45.4) 150–240 (2458–3933)


"M" 150–260 in3 (2458–4261 cc)

32-31-04Uncontrolled when reproduced Apr 30/07

Page 113

2-8020
(sheet 4 of 9)






0.16 (0.61) 50–175 (819–2868)1.0 (3.8) 180–230 (2950–3769)2.0 (7.6) 150–230 (2458–3769)5.0 (18.9) 150–230 (2458–3769)


"M" 150–230 in3 (2458–3769 cc)






0.16 (0.61) 50–275 (819–4506)0.7 (2.7) 290–340 (4752–5572)1.0 (3.8) 290–350 (4752–5736)2.0 (7.6) 250–320 (4097–5244)


"M" 270–350 in3 (4425–5735 cc)


Page 114

2-8020
(sheet 5 of 9)


Reverse Flow Test "D" 120 psi (827.4 kPa)"E" 8.0 gpm (30.3 lpm)

Internal Leakage "A" 15 drops/min"B" 10 drops/min



0.16 (0.61) 20–105 (328–1721) 0.6 (2.3) 20–105 (328–1721) 2.0 (7.6) 80–120 (1311–1966)

10.0 (37.8) 80–120 (1311–1966)


"M" 80–120 in3 (1311–1966 cc)






0.6 (2.3) 150–200 (2458–3277) 2.0 (7.6) 150–200 (2458–3277) 8.0 (30.3) 165–215 (2703–3523)12.0 (45.4) 165–215 (2703–3523)


"M" 150–215 in3 (2458–3523 cc)


Page 115

2-8020
(sheet 6 of 9)






0.6 (2.3) 70–90 (1147–1474)2.0 (7.6) 70–90 (1147–1474)4.0 (15.1) 65–90 (1065–1474)


"M" 60–90 in3 (983–1474 cc)



Internal Leakage "A" 15 drops/min"B" 10 drops/min"C" 5 drops/min

Pressure Drop Tests "F" 9.0 gpm (34.1 lpm)"G" 80 psid (552 kPa)


0.3 (1.1) 155–200 (2540–3277) 2.0 (7.6) 180–220 (2950–3277)

8.0 (30.3) 135–170 (2212–2786)15.0 (56.8) 130–170 (2130–2786)


"M" 125–188 in3 (2048–3081 cc)


Page 116

2-8020
(sheet 7 of 9)



Internal Leakage "A" 15 drops/min"B" 10 drops/min



0.16 (0.61) 20–105 (328–1721) 0.6 (2.3) 20–105 (328–1721) 2.0 (7.6) 80–120 (1311–1966)10.0 (37.9) 80–120 (1311–1966)


"M" 80–120 in3 (1311–1966 cc)






0.6 (2.3) 170–220 (2786–3605) 4.0 (15.1) 160–220 (2622–3605)

10.0 (37.8) 160–220 (2622–3605)


"M" 160–220 in3 (2622–3605 cc)


Page 117

2-8020
(sheet 8 of 9)






0.16 (0.61) 50–220 (819–3605)1.0 (3.8) 165–220 (2704–3605)2.0 (7.6) 165–220 (2704–3605)5.0 (18.9) 165–220 (2704–3605)


"M" 160–220 in3 (2622–3605 cc)






0.16 (0.61) 50–375 (819–6145)0.7 (2.7) 320–390 (5244–6391)1.0 (3.8) 320–390 (5244–6391)2.0 (7.6) 320–375 (5244–6145)


"M" 320–390 in3 (5244–6391 cc)


Page 118

2-8020
(sheet 9 of 9)






0.6 (2.3) 275–330 (4507–5408) 4.0 (15.1) 210–330 (3441–5408)

11.0 (41.6) 240–330 (3933–5408)


"M" 230–330 in3 (3769–5408 cc)



Internal Leakage “A” 15 drops/min"B" 5 drops/min"C" 10 cc/min



0.6 (2.3) 115–140 (1885–2294)2.0 (7.6) 115–140 (1885–2294)4.0 (15.1) 100–140 (1639–2294)

Reset Test "K" 3.0 gpm (11.4 lpm) "L" 5.0 Seconds

"M" 100–140 (1639–2294 cc)


Page 119/120

2-8020
DISASSEMBLY
1. General

The disassembly instructions that follow presume that complete overhaul of the unit is to be accomplished. In many situations, partial overhaul may be all that is required. If indications are such that complete over-haul is not required, disassemble only to the extent necessary to accomplish repair by replacement of detail part or parts.

NOTE: Refer to TESTING/TROUBLESHOOTING to establish condition or probable cause of malfunc-tion and determine extent of disassembly and repair.

NOTE: The following parts are recommended for replacement if they are included in the level of disas-sembly being accomplished.

PART NUMBER NOMENCLATURE PART NUMBER NOMENCLATURE

NAS1611-020 Packing, Preformed (140) MS27074-6C Retainer Wire (170)NAS1611-027 Packing, Preformed (150) MS27073-8C Nut, Swivel (275)NAS1611-123 Packing, Preformed (145) MS27074-8C Retainer Wire (280)BACR12BM-027 Retainer, Packing (160) MS27073-10C Nut, Swivel (175)BACR12BM-123 Retainer, Packing (155) MS27074-10C Retainer Wire (180)MS27073-4C Nut, Swivel (300) MS20995NC32 Lockwire (N/A)MS27074-4C Retainer Wire (305) Alucast No. 67 Seal, Aluminum (N/A)MS27073-6C Nut, Swivel (165)

2. Equipment

There is no special equipment required for disassembly of the fuse. Standard tool box items are all that are required.

3. Disassembly Procedure (Refer to IPL Figure 1)

A. After making note of lockwire arrangement, cut and remove lockwire from fuse assembly.

B. Place fuse in a soft-jawed vise, clamping lightly on housing (5/75/110/185/215/225/235/290/315/320).

C. Using a 1 7/16" wrench, loosen inlet plug (15/85/120/130/195/255/295) from housing (5/75/110/185/215/225/235/290/315/320).

WARNING: THE FUSE ASSEMBLY IS UNDER COMPRESSED SPRING LOAD AND CAN CAUSE INJURY IF RELEASED IN AN UNCONTROLLED MANNER. CARE-FUL ADHERENCE TO THE DISASSEMBLY PROCEDURE IS ADVISED TO AVOID THE POSSIBILITY OF FLYING PARTS.


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2-8020

WARNING: HYDRAULIC FLUID MAY CAUSE EYE OR SKIN IRRITATION. AVOID EYE OR SKIN CONTACT. IN CASE OF EYE CONTACT, FLUSH WITH WATER AND OBTAIN MEDICAL AID.

D. Carefully unscrew and remove the internal assembly from housing (5/75/110/185/215/225/235/290/315/320) and set it aside.

E. Remove seal (70) from housing (5/75/110/185/215/225/235/290/315/320) if present.

F. Using a 1 3/8" wrench, loosen outlet plug (10/80/115/190) from housing (5/75/110/185/215/225/235/290/315/320).

G. Remove fuse assembly from vise and unscrew outlet plug (10/80/115/190) from housing (5/75/110/

185/215/225/235/290/315/320).

H. Remove piston spring (45) from internal assembly.

I. Remove piston (20/90/200/220) from metering cylinder (40/105/125/210/230/245/270/285).

J. Remove metering cylinder (40/105/125/210/230/245/270/285) from metering body (35/100/100A/205/240/265).

K. Remove metering body (35/100/100A/205/240/265) from inlet plug (15/85/120/130/195/255/295).

L. Remove reverse flow slide (25) and reverse flow spring (50) from inlet plug (15/85/120/130/195/255/295).

M. Remove preformed packing (150) and packing retainers (160) from inlet plug (15/85/120/130/195/255/295). Discard preformed packing and packing retainers.

N. Remove retaining ring (135/135A) from metering body (35/100/100A/205/240/265).

O. Remove metering cone (30/95/260) and metering spring (55/310) from metering body (35/100/100A/205/240/265).

P. Remove preformed packing (140) from metering body (35/100/100A/205/240/265). Discard preformed packing.

Q. Remove preformed packing (145) and packing retainers (155) from outlet plug (10/80/115/190). Dis-card preformed packing and packing retainers.

NOTE: If Ident Plate (60A/60C), Inserts (65), or Swivel Nut (165/175/275/300) are to be removed or replaced, refer to "REPAIR" section.


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2-8020
CLEANING
WARNING: SOLVENTS LISTED IN THIS PROCEDURE ARE TOXIC AND/OR FLAMMABLE. PERSONNEL USING THESE SOLVENTS SHALL REFER TO THE MANUFACTUR-ERS MATERIAL SAFETY AND HEALTH PRECAUTIONS BEFORE USE.

WARNING: WHEN USING COMPRESSED AIR, PROTECTIVE GOGGLES SHALL BE WORN TO PROVIDE PROTECTION FROM FLYING PARTICLES. AIRSTREAM SHALL NOT BE DIRECTED TOWARD PERSONNEL.

CAUTION: SOLVENTS CAN HAVE A HARMFUL EFFECT ON PAINTED SURFACES AND PLAS-TICS, USE ONLY THOSE SOLVENTS THAT HAVE BEEN PROVEN COMPATIBLE WITH THE ITEM TO BE CLEANED.

1. Process

Any standard cleaning process may be used to clean metal components of the Quantity Measuring Fuse Assembly. These include brushing and rinsing, ultra-sonic cleaning, vapor degreasing, etc. Parts must be thoroughly dried after cleaning and protected from contamination while they are being held for assembly.

2. Solvent

Acceptable cleaning solvents are determined primarily by the process used. They include both hydrocar-bon solutions (Stoddard Solvent, Methyl Ethyl Ketone, etc.) or hot alkaline degreasing solutions. Rinse solutions should be filtered to 15 microns, absolute.

NOTE: Equivalent substitutes may be used for the items listed.

3. General Notes

A. Do not allow prolonged contact of solvents on plastic materials. Use only the solvents recommended or proven compatible with samples of the materials to be cleaned.

B. Items shall be fully disassembled prior to immersion in a solvent cleaning tank.

C. Paints, adhesives and similar materials shall be fully cured before cleaning.

D. Do not contaminate or damage other parts or surfaces when removing solvent with compressed air.

E. Insofar as is possible, keep solvent out of faying surfaces, crevices, cracks or other confined spaces. Remove solvent trapped in limited-access areas using compressed air or a suitable hot air oven.

F. Use caution when handling cleaned parts or surfaces to protect them from contamination.

G. Cleaned parts shall be placed in commercially available polyethylene protective bags or clean contain-ers until they are ready to be used.


Page 401

2-8020
4. Cleaning Methods
A. Pre-cleaning

This method is used to remove soil when subsequent cleaning is to be accomplished.

(1) Remove loose soil, excess grease or oil by wiping, scrubbing or other physical means. Commer-cially available oil-absorbing wipers will facilitate oil removal without use of solvents.

(2) Select a suitable solvent for the cleaning task.

(3) Clean the surface by one or more of the following methods:

(a) Wet the surface with solvent and wipe or scrub the area using a commercially available cotton rag wiper, soft brush or sponge.

(b) If practical, immerse the part in solvent and allow the soiled area to soak. If necessary, scrub the surface as in step A (1).

(c) Spray or flow the solvent on the surface to assist in cleaning.

(4) Rinse the surface using clean solvent and clean wipers.

(5) Wipe up excess solvent and dry surface by wiping or using compressed air.

B. Final Cleaning

This method is used when a thoroughly cleaned part or surface is required, such as prior to painting, adhesive bonding or assembly.

(1) If necessary, pre-clean in accordance with instructions in paragraph 4.A.

(2) Select a suitable solvent for the final cleaning task.

(3) Dispense solvent onto a clean, white, cotton rag wiper or, if appropriate, part may be immersed in a cleaning tank.

(4) If necessary, rub surface to be cleaned with solvent-soaked wiper. Immediately wipe dry with a clean, dry wiper. Do not allow solvent to evaporate to dryness.

(5) Frequently exchange soiled wiper for a clean one.

(6) Repeat the above operations until the wiper shows no soil.

C. Removal of Hydraulic Fluids and Soils

This method is used to remove localized hydraulic fluid and soils in preparation for minor repairs.


Page 402

2-8020

(1) Select suitable solvent to remove hydraulic fluid and soils.

CAUTION: DO NOT ALLOW SOLVENTS TO CONTACT LUBRICATED AREAS, PLAS-TICS, OR DECALS.

(2) Dampen a clean wiper with solvent. Wring out the cloth to remove excess solvent.

(3) Rub the surface with the dampened cloth to remove the hydraulic fluid or soils. Do not allow excessive amount of solvent to become squeezed out of the cloth and become entrapped in fay-ing surfaces.

(4) Immediately wipe dry with a clean cloth or blow dry all surfaces contacted with solvent.


Page 403/404

2-8020
CHECK
Examine parts under strong light and with a suitable magnifying means, ten-power or greater. Check packing grooves and sealing surfaces for nicks or scratches. Examine threaded items for crossed or stripped threads. Follow standard practices in checking for distortion and for warped, abraded, scratched or worn areas. Con-duct a careful examination of surface finishes or dimensional tolerances where specified.

Conduct the specific checks listed in Table 502. Numbers in parentheses refer to item numbers listed in Illus-trated Parts List.

NOTE: If I.D. Plate (60A/60C) must be removed, a replacement will likely be required due to weakening of the metal from the repeated bending required for installation and removal.

Table 501 Check Tools and Materials

ITEM SUGGESTED TYPE SOURCE

A. Dye Penetrant Kit

B. Bright Light

C. Magnifying Glass 5 to 10 X

D. Spring Tester

No. 1387T1 - 115 VAC

At least 150 watts

4 inch lens or greater

P/N DST 88 or equiv.

CAGE CODE: 3A054

Commercially available

Commercially available

CAGE CODE: V11710

NOTE: Equivalent substitutes may be used for the items listed.


Page 501

2-8020
TABLE 502 Inspection Requirements
(Sheet 1 of 3)

COMPONENT METHOD CHECK FOR REQUIREMENTS

Housing(185/215/250A/315/320)

Visual Cracks or other signs of metal fatigue

No defects permissible

Magnetic Particle Inspect per BAC 5424

Cracks or other signs of metal fatigue


Housing(5/75/110/225/235/290)



Penetrant Inspect perBAC 5423



Outlet plug(10/80/115/190)



Damaged Threads See Repair




Inlet Plug(15/85/120/130/195/255/295)




Dimensional Excessive wear Refer to Fits and Clearance




Piston (20/90/200/220)



Dimensional Excessive wear Refer to Fits and Clearance





Page 502

2-8020
TABLE 502 Inspection Requirements
(Sheet 2 of 3)


Reverse Flow Slide (25)



Dimensional Excessive wear Refer to Fits andClearances




Metering Cone (30/95/260)







Metering Body (35/100/100A/205/240/265)







Metering Cylinder (40/105/125/210/230/245/270/285)







Piston Spring (45) Visual Cracks or other signs of metal fatigue


Dimensional Deformation or permanent set. Use spring tester (Table 501) to check 9.7 to 10.7 lb (4.40 to 4.85 kg) load at 1.10 inch (2.79 cm) height, 3.3 to 4.3 lb (1.50 to 1.95 kg) load at 3.35 inch (8.51 cm) height, and free length of 4.72 inches (11.99 cm).


TABLE 502 Inspection Requirements(Sheet 3 of 3)


Page 503

2-8020


Reverse Flow Spring (50) Visual Cracks or other signs of metal fatigue


Dimensional Deformation or permanent set. Use spring tester (Table 501) to check 2.45 to 3.05 lb (1.11 to 1.38 kg) load at 0.25 inch (0.635 cm) height, 2.1 to 2.7 lb (0.95 to 1.23 kg) load at 0.31 inch (0.79 cm) height, and free length of 0.725 inches (1.842 cm)


Metering Spring (55/310) Visual Cracks or other signs of metal fatigue


Dimensional Deformation or permanent set; use spring tester (Table 501) to check 5.70 to 6.30 lb (2.59 to 2.86 kg) load at 0.325 inch (0.826 cm) height, 3.53 to 4.33 lb (1.60 to 1.96 kg) load at 0.425 inch (0.193 cm) height, and free length of 0.61 inches (1.55 cm)


Retaining Ring (135/135A) Visual Cracks or other signs of metal fatigue


Swivel Nut (165/175/275/300) Visual Cracks or other signs of metal fatigue



Seal (70) Visual Scratches, Wear, Damage No defects permissible


Page 504

2-8020
REPAIR
In most cases, reworking a worn or damaged part will not be economically feasible; therefore replacement of such parts is recommended. The following instructions are for repairing minor defects only. For information on making major repairs to components not covered under this section, contact Smiths Aerospace Mechanical Systems—Yakima.

1. Repair

CAUTION: DO NOT USE ABRASIVES ON SEALING SURFACES, BEARING SURFACES OR PLATED PARTS.

A. Corrosion and Minor Defects: Remove by polishing lightly with crocus cloth (P-C-458) or equivalent. Remove raised surfaces resulting from minor nicks with an Arkansas stone.

B. Threads: Remove minor defects with a small triangular file or thread chaser.

2. Refinish

A. Anodized Finishes

Minor defects in the finish of anodized aluminum parts may be repaired by alodining perBAC 5719.

3. Replacement (Refer to IPL Figures 1)

A. Insert (65)

(1) If replacement of insert (65) becomes necessary due to wear or damage, they may be drilled out, taking care not to damage the host part.

(2) Press new inserts (65) into metering body (35/100/100A/205/240/265), making sure inserts are com-pletely bottomed in holes.

(3) Machine inserts to achieve a projected diameter of 1.230–1.232 inches (3.124–3.129 cm) around the centerline of the metering body (35/100/100A/205/240/265) before installing metering body into inlet plug (15/85/120/130/195/255/295)

B. Swivel Nut (165/175/275/300) and Retainer Wire (170/180/280/305)

CAUTION: IF SWIVEL NUT IS TO BE REPLACED ON A COMPLETE UNIT, PRECAUTIONS SHALL BE TAKEN TO PREVENT CONTAMINATION OF THE FUSE ASSEMBLY.

NOTE: Swivel Nut and Retainer Wire are a permanent installation, not reusable after installation.


Page 601

2-8020
CAUTION: DO NOT MACHINE MATERIAL FROM THE HOST PART IN WHICH THE SWIVEL NUT
HAS BEEN INSTALLED.

(1) If swivel nut is to be replaced at the fuse assembly level, plug inlet and outlet fluid ports to prevent inter-nal contamination.

(2) Carefully machine a groove around swivel nut (165/175/275/300) exposing retainer wire (170/180/280/305).

(3) Remove and discard swivel nut (165/175/275/300) and retainer wire (170/180/280/305).

(4) Lightly secure replacement swivel nut (165/175/275/300) in a soft jaw bench vise.

(5) Position inlet plug (85/120/130/255) on swivel nut (165/175/275/300).

(6) Insert one end of wire retainer (170/180/280/305) into guide hole in side of swivel nut (165/175/275/300); using a small hammer, while rotating the inlet plug, lightly tap wire retainer until wire is completely formed around and contained in groove on inside of swivel nut. Using small punch, assure wire is fully inserted and does not extend up into hole in swivel nut.

4. Repair Tools and Material

NOTE: Equivalent substitutions may be used.

A. Crocus Cloth: P-C-458, commercially available

B. Arkansas Stone: soft, commercially available

C. File: 6" triangular smooth, commercially available

D. Thread Chaser:

0.4375-20 J Internal/External commercially available0.5625-18 J Internal/External commercially available0.7500-16 J External commercially available0.8750-14 J Internal/External commercially available

E. Brush Alodine Kit #120: McMaster-Carr (V3A054)


Page 602

2-8020
ASSEMBLY
1. General

All parts must be thoroughly cleaned (refer to Cleaning section of manual), dried and kept in protective bags or clean containers until they are ready for assembly. The unit shall be assembled under clean room conditions, with parts and hydraulic fluid protected from contamination.

The instructions that follow presume that complete assembly of the unit is to be accomplished. If only par-tial overhaul was undertaken, refer just to those steps necessary to complete assembly.

The numbers shown in parentheses in the following procedures refer to items in the exploded-view illustra-tions, as required, to determine the location of parts in the assembly.

2. Materials

NOTE: Equivalent substitutes for the materials listed below may be used.

A. Lockwire ... Per MS20995C32

B. Hydraulic Fluid ... Per BMS 3-11 (V81205)

C. Aluminum Seal ... P/N Alucast #67 (V01019)

3. Equipment

A. Standard Hydraulics Mechanics Tool Chest

4. Assembly Procedure (Refer to IPL Figures 1)

NOTE: Prior to assembly all packings, retainers, seals, etc. should be lightly lubricated with hydraulic fluid.

WARNING: THE INTERNAL COMPONENTS OF THE FUSE ASSEMBLY ARE UNDER A COM-PRESSED SPRING LOAD. CAREFUL ADHERANCE TO ASSEMBLY PROCEDURE IS ADVISED TO AVOID THE POSSIBILITY OF FLYING PARTS.

A. Install preformed packing (145) and packing retainers (155) into groove of outlet plug (10/80/115/190).

B. Install preformed packing (140) on metering body (35/100/100A/205/240/265).

C. Install metering spring (55/310) over metering cone (30/95/260).

D. Install metering spring (55/310) and metering cone (30/95/260) onto metering body (35/100/100A/205/240/265).


Page 701

2-8020
E. Compress metering spring (55/310) and metering cone (30/95/260) onto metering body (35/100/100A/
205/240/265) past groove on metering body, install retaining ring (135/135A) in groove on metering body.

F. Install preformed packing (150) and packing retainers (160) on inlet plug (15/85/120/130/195/255/295).

G. Install reverse flow spring (50) over reverse flow slide (25) and install in inlet plug (15/85/120/130/195/255/295).

H. Install metering body (35/100/100A/205/240/265) in inlet plug (15/85/120/130/195/255/295).

I. Assemble metering cylinder (40/105/125/210/230/245/270/285) onto metering body (35/100/100A/205/240/265), with holes in metering cylinder facing away from metering body.

J. Install piston (20/90/200/220) in metering cylinder (40/105/125/210/230/245/270/285), inserting skirt end first.

K. Insert piston spring (45) into metering cylinder (40/105/125/210/230/245/270/285).

L. If required, install seal (70) onto boss of outlet plug (10/80/115/190) with flange contacting outlet plug.

M. Thread outlet plug (10/80/115/190) onto housing (5/75/110/185/215/225/235/290/315/320) until hand tight.

N. Holding fuse assembly firmly in hand, insert inlet plug (15/85/120/130/195/255/295) into end of hous-ing (5/75/110/185/215/225/235/290/315/320) while compressing piston spring (45), making sure that seal (70) (if applicable) remains in place on outlet plug (10/80/115/190).

O. Continue applying hand pressure to compress piston spring (45) and thread inlet plug (15/85/120/130/195/255/295) into the end of housing (5/75/110/185/215/225/235/290/315/320).

P. Using a 1 7/16-inch (36.5 mm) wrench and a 1 3/8-inch (35 mm) wrench on the wrench flats of the inlet plug (15/85/120/130/195/255/295) and outlet plug (10/80/115/190), torque the fuse assembly to 20–25 ft-lbs (27.1–33.9 Nm).

Q. Refer to Section 100 for Testing.

5. Storage Instructions

A. Preparation

(1) Flush and partially fill unit with BMS 3-11 hydraulic fluid to the extent that all internal seals are lubricated. Sufficient air entrapment must be present to allow for thermal expansion.

(2) Cap both ports using shipping caps.


Page 702

2-8020
(3) Lockwire the inlet plug (15/85/120/130/195/255/295) and outlet plug (10/80/115/190) as noted
prior to disassembly, using the double twist method per BAC5018 or MS33540 as shown in Fig-ure 1. Secure with aluminum seal.

B. Packaging

(1) Unit shall be packaged in a controlled area to protect it from contamination.

(2) Place unit in a commercially available polyethylene bag and heat seal. Package units individu-ally, one to a container.

(3) Make certain the unit is adequately cushioned within the container to prevent impact damage dur-ing transit.

(4) Clearly label the outer container with the unit nomenclature, part number, serial number, date of manufacture, purchase order number, quantity per container, Boeing SCD part number and sup-plier's name.

C. Storage

(1) Store packaged units in a suitable sheltered area where ambient temperature conditions will not exceed -65°F to +160°F (-53.9°C to +71.1°C). Units may be stored indefinitely.


Page 703/704

2-8020
FITS AND CLEARANCES
1. Fits and Clearances

Original dimensions and allowable wear tolerances for critical moving parts in the Quantity Measuring Fuse Assembly are listed in Table 801, and depicted in Figure 802.

NOTE: All dimensions are stated in the original design format using the U.S. decimal inch system. The approximate metric equivalent (millimeter), stated above each dimension, is for reference only and shall not be used for acceptance or rejection purposes.

Table 801 CRITICAL TOLERANCES

FIG& REF.

LTR

IPL FIGUREAND ITEM NO.

DIMENSIONS CLEARANCE LIMITSALLOWCLEAR.

MIN MAX MIN MAX MIN MAX

801A

I.D.1-15/85/120

130/195/255/295

29.271.1525

29.281.1529

0.04570.0018

0.06350.0025

29.281.1529

0.06350.0025

O.D1-25

29.221.1504

29.231.1507

29.221.1504

801B

I.D.1-30/95/260

17.290.6807

17.300.6810

0.00500.0002

0.02030.0008

17.300.6810

0.02030.0008

O.D1-35/100/100A/

205/240/265

17.2770.6802

17.2850.6805

17.2770.6802

801C

I.D.1-40/105/125/210/230/245/

270/285

25.210.9925

25.220.9928

0.00500.0002

0.02030.0008

25.220.9928

0.02030.0008

O.D1-20/90/200/220

25.1960.9920

25.2040.9923

25.1960.9920


Page 801

2-8020

CRITICAL TOLERANCESFigure 802

2. Torque Values

Torque values for the Quantity Measuring Fuse Assembly 2-8020 are listed in Table 803.

Table 803 TORQUE VALUES

PART NO.ITEMNO.

NAME POUND/INCHES POUND/FEETNEWTON/METERS

7-2886-37-2886-57-2886-67-2886-87-2886-27-2886-77-2886-1

7-3056-27-3056-37-3056-47-2874-2

1585120130195255295

1080115190

Inlet PlugInlet PlugInlet PlugInlet PlugInlet PlugInlet PlugInlet Plug

Outlet PlugOutlet PlugOutlet PlugOutlet Plug

20–2520–2520–2520–2520–2520–2520–25

20–2520–2520–2520–25

27.12–33.9027.12–33.9027.12–33.9027.12–33.9027.12–33.9027.12–33.9027.12–33.90

27.12–33.9027.12–33.9027.12–33.9027.12–33.90


Page 802

32-31-04

2-8020

Uncontrolled when reproduced

SPECIAL TOOLS, FIXTURES AND EQUIPMENT

1. Tools and Equipment—General Overhaul/Maintenance

NOTE: Equivalent substitutes may be used for listed items.

A. Hydraulic Power Supply: 0–5000 psig (34475 kPa)0–30 gpm (0–114 lpm)

Hydraulic Fluid: Per BMS 3-11Fluid Filtration: 15 microns absolute per D6-47173

B. Pressure Gages (Bourdon Type - Accuracy: .5%; V70462).

2 each: 0–200 psi (0–1379 kPa) (Figure 101, Items A and B)2 each: 0–5000 psi (0–34475 kPa) (Figure 101, Items C and D)

C. Miscellaneous Tubing, Fittings, Adapters, etc.

D. Flow Meters (V22375).

1 each: 20 gpm (76.1 lpm), BMS 3-11, Model 8-35-600/70 CG (Figure 101, Item E)1 each: 2 gpm (7.57 lpm), BMS 3-11, Model 10A4555PXA (Figure 101, Item F)

E. 4-Way Valve, 3-Position: 1 each (3000 psi series, P/N 8441M-1/4D52, V86768) (Figure 101, Item G)

F. 3-Way Valve, 3-Position: 2 each (3000 psi series, P/N 8421M-1/4D52, V86768) (Figure 101, Items H and I)

G. Needle Valve: 7 each (P/N 10FT013T, Dragon Valves Inc., V97399) (Figure 101, Items J, K, L, M, N, O, P)

H. Check Valve: 1 each (P/N 428-12Y1-6, V86768) (Figure 101, Item Q)

I. Drip Tube: 1 each ( P/N ED 1759, V97415) (Figure 101, Item R)

J. Accumulator: 1 each (Cylinder, P/N PH H16474S (24 in. (61 cm) stroke (EPR Seals), V84561) (Figure 101, Item S)

K. Standard Hydraulic Mechanics’ Tool Chest.

L. Stopwatch, accurate to ±0.1 seconds, or better.

M. Scale, 20 lb. (9.07 kg): 1 each (P/N 719-20 MRP, V11710)

N. Calibrated Beaker: 5000 cc, commercially available (Figure 101, Item T)

Apr 30/07

Page 901/902

2-8020
ILLUSTRATED PARTS LIST
1. Introduction

A. Purpose

This section provides illustration and parts breakdown of all parts of the assembly shown on the title page which can be disassembled, repaired or replaced, and reassembled.

B. Explanation and Usage of Section

(1) Assembly Order Indenture System

(a) The Indenture system used in the parts list shows the relationship of one part to another. For a given item, the number of indentures depicts the relationship of the item to the asso-ciated next higher assembly as follows:

1 2 3 4 5 Assembly

Detail Parts for AssemblySubassembly

Attaching Parts for SubassemblyDetail Parts for Subassembly

(2) Part Numbering System

(a) Part numbers have been assigned for precise identification of parts when ordering replace-ments.

(3) Effectivity Code

(a) Reference letters A through Z (except I and O) are assigned to the EFF CODE column to each top assembly in each IPL figure. The reference letter of the applicable top assembly is also shown in the EFF CODE column for each detail part and subassembly except that no reference letter is shown for detail parts and subassemblies used on all top assemblies.

(4) Units Per Assembly

(a) The UNITS PER ASSY column shows the total number of numbers required per assem-bly, per subassembly and per sub-subassembly, as applicable. For bulk items, the letters "AR" indicate "as required." The letters "RF" indicate the item is listed for reference pur-poses.

(5) Parts Replacement Data


Page 1001

2-8020

(a) The interchangeability relationship between parts is identified in the NOMENCLATURE column of the parts list. A list of the terms used to show interchangeability and their defi-nition is as follows:

TERM ABBREVIATION DEFINITION

Optional OPT This part is optional and interchangeable with other parts in the same item number variant group or other item numbers as designated.

Replaced By REPLD BY The part in the part number is replaced by and is interchangeable with the item number shown in the notation.

Replaces REPLS The part in the part number column replaces and is interchangeable with the item number shown in the notation

Superseded SUPSD BY The part in the part number column is replaced by and is NOT inter-changeable with the item number shown in the notation.

Supersedes SUPSDS The part in the part number column replaces and is NOT interchange-able with the item number shown in the notation.

(6) Items Not Illustrated

(a) Items not illustrated are indicated by a dash (–) ahead of the item number in the FIG & ITEM column.

(7) Alpha Variant Numbers

(a) Alpha variants A to Z (except I and O) are assigned to existing item numbers when neces-sary to show:

1. Added Items2. Service Bulletin Modifications3. Configuration Differences4. Optional Parts5. Production Improvement Parts (Non-Service Bulletin)

(b) Alpha variant item numbers are not shown on the exploded view when the appearance and location of the alpha variant item is the same as the basic item.

(8) Service Bulletin Modifications

(a) When a new top assembly part number is assigned by a Service Bulletin, the notations appear at the top assembly level only. The configuration differences at detail part levels are then shown by use of a code letter.

(b) When the top assembly part number is not changed by the Service Bulletin, the notations appear at the detail part level.


Page 1002

2-8020

2. Vendor Code

Vendor codes are from Federal Cataloging Handbook H-1, and/or the Defense Logistics Agency H Series. The following is a list of manufacturers (and their codes) used in this manual.

CODE MANUFACTURER CODE MANUFACTURER

01019 Stoffel Seals Corporation400 High AvenueNyack, NY 10960-2475Phone: 845-353-3800

08756 Spirolox Division of Kaydon Corp.29 Cassens CourtFenton, MO 63026-2542Phone: 734-426-4681

86120 The Marmon Group Inc.225 West Washington StreetChicago, IL 60606Phone: 312-332-0317

81205 The Boeing Company20403 68Th Ave S MS 8K-10Kent, WA 98032-2316Phone: 800-226-3464

11719 M and M Precision Systems300 Progress RoadDayton, OH 45449-2391Phone: 937-859-8273

84561 Parker-Hannifin Corp.Cylinder Division500 South Wolf RoadDes Plaines, IL 60016-3187Phone: 847-298-2400

22375 Fischer and Porter Co.125 E. County Line RoadWarminster, PA 18974-4974Phone: 215-674-6484

86768 Teledyne Industries Inc.Teledyne Fluid SystemsBrecksville, OH 44141-3335

3A054 McMaster-Carr Supply Co.9630 Norwalk BlvdSanta Fe Springs, CA 90670-2932Phone: 562-695-2449

97399 Dragon Valves Inc.13457 Excelsior DriveNorwalk, CA 90650-0523Phone: 562-921-0200

70462 Bristol Babcock Inc.Helicoid Instrument Division1100 Buckingham StreetWatertown, CT 06795-6602Phone: 860-945-2200

97415 Smiths Aerospace Mechanical Systems—Yakima2720 W. Washington Ave.Yakima, WA 98903-2513Phone: 509-248-5000


Page 1003

2-8020

(Sheet 1 of 2)

PART NO. AIRLINE PART NO. FIG ITEM REQ’D

BACR12BM-123BACR12BM-027MS16624-4066MS16624-4067MS27073-4CMS27073-6CMS27073-8CMS27073-10CMS27074-4CMS27074-6CMS27074-8CMS27074-10CNAS1611-020NAS1611-027NAS1611-123RSN66RSN66SC-P

2-8020-12-8020-22-8020-32-8020-52-8020-62-8020-112-8020-122-8020-132-8020-142-8020-152-8020-162-8020-182-8020-242-8020-252-8020-262-8020-272-8020-282-8020-29

7-2874-27-2875-17-2875-27-2876-17-2877-17-2878-17-2878-27-2878-3

11111111111111111

111111111111111111

11111111

155160

135A135300165275175305170280180140150145136

136A

1-11-1A1-1B1-1C1-1D1-1E1-1F1-1G1-1H1-1J1-1K1-1L1-1M1-1N1-1P1-1Q1-1R1-1S

19020022045253095

260

22111111111111111

REFREFREFREFREFREFREFREFREFREFREFREFREFREFREFREFREFREF

11111111


Page 1004

2-8020

(Sheet 2 of 2)

PART NO. AIRLINE PART NO. FIG ITEM REQ’D

7-2879-17-2880-17-2880-27-2880-37-2880-47-2880-57-2880-67-2880-77-2880-87-2882-17-2882-27-2882-37-2882-47-2882-57-2882-67-2883-17-2883-37-2883-57-2883-77-2883-87-2883-97-2884-17-2886-17-2886-27-2886-37-2886-57-2886-67-2886-77-2886-87-2898-17-2898-27-2898-37-2898-47-2898-57-2908-27-2908-47-2962-17-3055-17-3056-27-3056-37-3056-47-3057-17-3208-1

1111111111111111111111111111111111111111111

5521040

270230245285105125225235290

575

11020535

265100

100A24050

2951951585

120255130185215

250A31532060A60C65701080

11520

310

1111111111111111111111111111111211111111111


Page 1005

2-8020

IPL Figure 1 EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-1

32-31-04Uncontrolled when reproducedJune 1/06

Page 1006

2-8020

IPL Figure 1A EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-2


Page 1007

2-8020

IPL Figure 1B EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-3


Page 1008

2-8020

IPL Figure 1C EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-5


Page 1009

2-8020

IPL Figure 1D EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-6


Page 1010

2-8020

IPL Figure 1E EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-11


Page 1011

2-8020

IPL Figure 1F EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-12

32-31-04Uncontrolled when reproducedJan 19/06

Page 1012

2-8020

IPL Figure 1G EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-13


Page 1013

2-8020

IPL Figure 1H EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-14


Page 1014

2-8020

IPL Figure 1J EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-15


Page 1015

2-8020

IPL Figure 1K EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-16


Page 1016

2-8020

IPL Figure 1L EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-18

32-31-04Uncontrolled when reproducedPage 1017

June 1/06

2-8020

IPL Figure 1M EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-24


Page 1018

2-8020

IPL Figure 1N EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-25


Page 1019

2-8020

IPL Figure 1P EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-26


Page 1020

2-8020

IPL Figure 1Q EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-27


Page 1021

2-8020

IPL Figure 1R EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-28


Page 1022

2-8020

IPL Figure 1S EXPLODED VIEW QUANTITY MEASURING FUSE ASSEMBLY2-8020-29


Page 1023

2-8020

– (Dash) ITEM NOT ILLUSTRATED

FIG & ITEM NO.

PART NO. AIRLINE PART NO.

NOMENCLATURE

1 2 3 4 5 6 7

EFFCODE

UNITSPER

ASSY

1- 11- 1A1- 1B1- 1C1- 1D1- 1E1- 1F1- 1G1- 1H1- 1J1- 1K1- 1L1- 1M1- 1N1- 1P1- 1Q1- 1R1- 1S

5101520

2530

35

40455055

6060A60B60C

65

2-8020-12-8020-22-8020-32-8020-52-8020-62-8020-112-8020-122-8020-132-8020-142-8020-152-8020-162-8020-182-8020-242-8020-252-8020-262-8020-272-8020-282-8020-29

7-2882-47-3056-27-2886-37-3057-1

7-2877-17-2878-1

7-2883-3

7-2880-27-2876-17-2884-17-2879-1

7-2908-17-2908-27-2908-37-2908-4

7-2962-1

Fuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity Measuring Fuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity MeasuringFuse Assembly, Quantity Measuring

. Housing

. Plug, Outlet

. Plug, Inlet

. Piston

. Slide, Reverse Flow

. Cone, Metering

. Body, Metering

. Cylinder, Metering

. Spring, Piston

. Spring, Reverse Flow

. Spring, Metering

. Plate, Ident

. Plate, Ident

. Deleted

. Plate, Ident

. Insert

ABCDEFGHJKLMNPQRST

ELELTAFP

ADEJKLMNPST

BCGHJNQR

ACEFHPRTCGR

ABCDEFGHJKLM

PQRSTPQRST

GHM

ABCDEFJKLN

RFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRFRF

1111

11

1

1111

11

1

4


Page 1024

2-8020


FIG & ITEM NO.


NOMENCLATURE

1 2 3 4 5 6 7

EFFCODE

UNITSPER

ASSY

70

7580859095

100100A105110115120125

130135

135A

136

136A140145150155

160

165170175180185

7-3055-1

7-2882-57-3056-37-2886-57-3057-27-2878-2

7-2883-77-2883-87-2880-77-2882-67-3056-47-2886-67-2880-8

7-2886-8MS16624-4067

MS16624-4066

RSN66

RSN66SC-PNAS1611-020NAS1611-123NAS1611-027BACR12BM123

BACR12BM027

MS27073-6CMS27074-6CMS27073-10CMS27074-10C7-2898-1

. Seal

. Housing

. Plug, Outlet

. Plug, Inlet

. Piston

. Cone, Metering

. Body, Metering

. Body, Metering


. Housing

. Plug, Outlet

. Plug, Inlet


. Plug, Inlet

. Ring, Retaining (OPT toMS16624-4066 )

. Ring, Retaining (OPT to MS16624-4067)

. Ring, Retaining (OPT to RSN66SC-P ). Ring, Retaining (OPT to RSN66). Packing, Preformed. Packing, Preformed. Packing, Preformed. Retainer, Packing (True P/N is BACR12BM-123). Retainer, Packing (True P/N is BACR12 BM-027). Nut, Swivel. Retainer, Wire. Nut, Swivel. Retainer, Wire. Housing

ADEFJKLMNPSTABD

DKMSBQF

ADEFKLPST

DSK

ELTC

AFJNPCELRTABDPQ

SDJKNSABCDEFGHKL

MPQRSTABCDE

FGHKLMPQRST

JN

JN

CELRTCELRTDJKNSDJKNS

H

1

11111

1111111

11

1

1

11112

2

11111


Page 1025

2-8020


FIG & ITEM NO.


NOMENCLATURE

1 2 3 4 5 6 7

EFFCODE

UNITSPER

ASSY

190

195200205210215220225230235240245250250A255260265270275280285290295300305310315320

7-2874-2

7-2886-27-2875-17-2883-17-2880-17-2898-27-2875-27-2882-17-2880-47-2882-27-2883-97-2880-67-2989-37-2898-37-2886-77-2878-37-2883-57-2880-3MS27073-8CMS27074-8C7-2880-57-2882-37-2886-1MS27073-4CMS27074-4C7-3208-17-2898-47-2898-5

. Plug, Outlet

. Plug, Inlet

. Piston

. Body, Metering


. Housing

. Piston

. Housing


. Housing

. Body, Metering


. Deleted

. Housing

. Plug, Inlet

. Cone, Metering

. Body, Metering


. Nut, Swivel

. Retainer Wire


. Housing

. Plug, Inlet

. Nut, Swivel

. Retainer, Wire

. Spring, Metering

. Housing

. Housing

BCGHQRH

BHQBGQ

HGR

CGRFF

JNLK

MMM

JMNMMMJNKG

BQBQNT

PQS

1

11111111111

111111111111111


Page 1026

2 8020 x smiths ohm

Documents

metal fatigue

magnetic particle

cotton rag

aerospace

alpha variant

fluid collection

metal fatigue

gradually