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TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download

Page 741 of 953

7-15. BRAKE LINES REPLACEMENT This task covers: a. Caliper to Tee Brake Line Removal h. Proportioning Valve to Union Brake Line Installation b. Caliper to Tee Brake Line Installation i. Proportioning Valve to Front Tee Brake Line c. Rear Brake Line Removal Removal d. Rear Brake Line Installation j. Proportioning Valve to Front Tee Brake Line e. Intermediate Brake Line Removal Installation f. Intermediate Brake Line Installation k. Caliper to Tee Support Brackets Removal g. Proportioning Valve to Union Brake Line l. Caliper to Tee Support Brackets Installation Removal INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Four tiedown straps (Appendix G, Item 310) Locknut (Appendix G, Item 81) Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition • Hood raised and secured (TM 9-2320-280-10). • Brake protection guards removed (para. 7-8.1). a. Caliper to Tee Brake Line Removal NOTE • Removal procedures are basically the same for all caliper to tee brake lines except M1123 and “A2” vehicles. • Brake lines on M1123 and “A2” series vehicles are not disconnected at tee line. • Steps 1 through 3 cover the right rear caliper to tee line (M998/A1). • Perform steps 4 through 9 for the left front caliper to tee line (M998A2). • Perform steps 10 through 14 for the left rear caliper to tee line (M998A2). 1. Disconnect brake line (1) from caliper (7). 2. Disconnect brake line (1) from rear tee (5) at forward rear crossmember (4). 3. Remove capscrew (6) and clamp (2) securing brake line (1) and vent line (3) to forward rear crossmember (4) and remove brake line (1) from clamp (2). CAUTION Cover or plug all open lines and connections immediately after disconnection to prevent contamination. Remove all plugs prior to connection. NOTE • Have drainage container ready to catch brake fluid. • Brake line replacement procedures for the service brake system and the rear dual service/parking brake system are basically the same. (Service brake system shown). TM 9-2320-280-20-2 7-32 Change 3