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 Table 2-l. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont’d). ITEM INTERVAL ITEM TO 8E NO. INSPECTED PROCEDURES NOT FULLY MISSION CAPABLE IF: 10 11 Semi- Suspension g. Inspect power steering pump, power g. Any class III leak. annually and Steering steering gear, hydraulic control valve, Any component damaged. System hoses, lines, and fittings for leaks or (Cont’d) damage. Semi- Brake a. Inspect master cylinder, hydro-booster, a. Any leak. Plugged, annually System proportioning valve, pressure limiter, broken, or damaged lines, and fittings for leaks and damage. lines and fittings. MASTER CYLINDER HYDRO-BOOSTER CAUTION l Use MIL-B-46176, Brake Fluid Silicone (BFS) for filling master brake cylinder. Failure to use BFS may cause damage to brake cylinder. l Thoroughly clean exterior of master cylinder cover before removing cover. Dirt, water, or grease will contaminate brake fluid, causing brake system damage. l Do not use screwdriver to remove cover. Damage to bail wire may result. l ‘lb 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. b. Check master brake cylinder fluid level. Level should be l/8 in. (3.2 mm) from top of master cylinder reservoir. Fill with BFS as necessary. b. Level below If8 in. (3.2 mm) from top of master cylinder reservoir. 2-12