TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 733 of 953
7-11. SERVICE BRAKE PAD MAINTENANCE This task covers: a. Removal c. Installation b. Cleaning and Inspection Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition Brake protection guards removed (para. 7-8.1) (M998A2 vehicle only). General Safety Instructions Make sure brake pads are installed with linings facing rotor. a. Removal CAUTION Caliper must be supported during removal to prevent damage to brake line. 1. Using crowfoot, remove two capscrews (7), washers (6), caliper (4), and yoke (5) from adapter (3). NOTE Note positioning of brake pad surfaces for installation. 2. Remove two brake pads (1) from adapter (3). b. Cleaning and Inspection NOTE • The following procedure applies to the front brake system on all vehicles and to the rear brake system on vehicles with serial numbers USBL Eff. 1 through 44824. • For replacement of rear dual service/parking brake pad on vehicles with serial numbers USBL Eff. 44825 and above, refer to para. 7-21) • If removing left front brake pads, halfshaft must be removed (para. 6-9). 1. Clean mating surfaces of caliper (4) and adapter (3) and lubricate with grease. 2. Inspect caliper (4) and caliper piston (8) for cracks, pitting, or damage. Replace caliper (4) if cracked, pitted, or damaged (para. 7-12). 3. Inspect dust boot (9) for tears or deterioration. Replace caliper (4) if dust boot (9) is torn or deteriorated (para. 7-12). 4. Inspect rotor (2) for heat cracks, discoloration, pitting, or scoring. Replace rotor (2) if cracked, pitted, or scored (para. 7-19). TM 9-2320-280-20-2 7-24 Change 2 INITIAL SETUP: Applicable Models All “A2” series vehicles Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) “C” clamp (Appendix B, Item 164) Special Tools Crowfoot, 14 mm (Appendix B, Item 152) Materials/Parts Grease (Appendix C, Item 22) Sealing compound (Appendix C, Item 45)