TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download
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Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV. ITEM NO. INTERVAL ITEM TO BE INSPECTED PROCEDURES NOT FULLY MISSION CAPABLE IF: 1 Semi- annually Brake System a. Inspect master cylinder, hydro-booster, proportioning valve, pressure limiter, lines, and fittings for leaks and damage. a. Any leak. Plugged, broken, or damaged lines and fittings. CAUTION • Use MIL-B-46176, Brake Fluid Silicone (BFS) for filling master brake cylinder. Failure to use BFS may cause damage to brake cylinder. • Thoroughly clean exterior of master cylinder cover before removing cover. Dirt, water, or grease will contaminate brake fluid, causing brake system damage. • Do not use screwdriver to remove cover. Damage to bail wire may result (S/N 299999 and below). • To prevent excessive fluid spillage, ensure that rubber diaphragm is completely seated before installing cover to master cylinder. NOTE • Remove cover from brake master cylinder by moving bail wire using thumb pressure only (S/N 299999 and below). • Remove cover from brake master cylinder by turning cover counter clockwise (S/N 300000 and above). • Perform step b. for S/N 299999 and below and step b.1 for S/N 300000 and above. b. Check master cylinder brake fluid level. Level should be 1/8 in. (3.2 mm) from top of master cylinder reservoir. Fill with BFS as necessary. b.1. Check master cylinder brake fluid level. Level should be 1/8 in. (3.2 mm) from “mid” line of master cylinder reservoir. Fill with BFS as necessary. b. Level below 1/8 in. (3.2 mm) from top of master cylinder reservoir. b.1. Level below 1/8 in. (3.2 mm) from “mid” line of master cylinder reservoir. MASTER CYLINDER S/N 300000 AND ABOVE HYDRO-BOOSTER S/N 299999 AND BELOW MASTER CYLINDER HYDRO-BOOSTER TB 9-2320-335-13&P 2-3