2-57. MAINTENANCE OF MASTER CYLINDER AND BRAKE LINES

Figure 2-45. Master Cylinder and Brake Lines

TM-10-4320-315-24 Pumping Assembly Water 600 GPM Trailer Mounted (NSN 4320-01-31448844) Manual
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TM 10-4320-315-24 2-57. MAINTENANCE OF MASTER CYLINDER AND BRAKE LINES This task covers: a. Service b. Remove c. Install INITIAL SETUP: Tools Equipment Conditions General Mechanics Tool Kit Pumping assembly is shutdown (refer to TM 10-4320- (Item 1, Appendix B) 315-10). Materials/Parts Personnel Required Brake Fluid (Item 5, Appendix C) Two a. SERVICE. (Figure 2-45) (1) Fill master cylinder (1) with brake fluid. (2) Loosen road side wheel cylinder bleeder screw (4). (3) Person no. 1: alternately apply and release pressure on the actuator (3) by pushing and pulling on trailer lunette (2). (4) Person no. 2: open bleeder screw (4) as pressure is applied. Close before the recovery stroke begins. (5) Continue bleeding the system until fluid flowing from line is free of air bubbles. (6) Tighten road side wheel cylinder bleeder screw (4). (7) Loosen curb side wheel cylinder bleeder screw. Repeat steps (4) through (6) for curb side wheel. (8) Recheck master cylinder (1) fluid level. Refill as required. (9) Apply pressure to brake actuator (3) and check system for leaks. NOTE Refer to MAINTENANCE OF BRAKE ACTUATOR (para. 2-56) for procedures for removing master cylinder. b. REMOVE. (1) Disconnect front brake hose assembly (5) from metal brake line (6). (2) Drain brake fluid into pan and discard; remove hose assembly (5) from master cylinder (1). (3) Remove clamp (7) securing brake line (6) to trailer chassis (8). 2-110

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