TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l 7-19. REAR DUAL SERVICE/PARKING BRAKE ADJUSTMENT This task covers: Adjustment INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Cotter pin (Appendix G, Item 35) Personnel Required One mechanic One assistant Manual References TM 9-2320-387-10 TM 9-2320-387-24P Equipment Condition Wheels chocked and parking brake released (TM 9-2320-387-101. Maintenance Level Unit NOTE The Kelsey-Hayes parking brake mechanism has an automatic adjusting feature and does not require periodic manual adjustment. When parking brake components or rear brake pads are replaced, the parking brake linkage must be initially positioned to ensure proper parking brake system operation. The only additional adjustment necessary is accomplished with parking brake hand lever. Refer to TM 9-2320-387-10. 1. Remove clip (1) and spread boot (2) to allow access to cotter pin (9). 2. Remove cotter pin (91, washer (81, and clevis pin (4) from clevis (5) and bellcrank (3). Discard cotter pin (9). 3. Repeatedly apply and adjust parking brake hand lever until bellcrank (31 linear travel is 0.75 in. (19 mm). CAUTION Holes in parking brake clevis must align to holes in adjusting bellcrank without force for proper parking brake adjustment. Failure to do this may result in damage to equipment and poor performance. 4. Release parking brake. Loosen nut (6) and adjust clevis (5) so holes in clevis (5) align to holes in bellcrank (3). Install clevis (5) on bellcrank (3) with clevis pin (4), washer (81, and cotter pin (91. CAUTION Do not over-tighten brake rod. Over-tightening brake rod may result in dragging brakes. 5. If necessary, remove excess slack in parking brake cables by turning parking brake rod (7) clockwise or counterclockwise into clevis (5). 7-54