TM-9-2320-387-10 HMMWV Operator Manual Download
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TM 9-2320-387-10 Change 1 3-13 3-13. PARKING BRAKE ADJUSTMENT AND CLEANING a. Chock wheels and release parking brake handle (3) by depressing safety release button (2). b. Turn adjusting knob (1) clockwise as tightly as possible by hand. c. Apply parking brake handle (3). d. If parking brake cannot be applied, turn adjusting knob (1) counterclockwise until parking brake can be applied. e. Test parking brake. (1) Remove chocks. (2) Depress service brake pedal and start engine (para. 2-12). (3) Place transfer case shift lever (4) in H (high) and transmission shift lever (5) in (overdrive). (4) Slowly let up on service brake pedal. Parking brake should hold vehicle stationary. f. After operating in mud or sand, use a low-pressure water source to ensure actuating lever (7) and spring (6) are thoroughly cleaned of mud, sand, or other debris. Lubricate lever (7) in accordance with appendix G as soon as possible. D 6 7 1 2 3 4 5