TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks
Page 540 of 1144
TM 9-2320-361-24-2 0344 00 0344 00-2 AUTOMATIC BRAKE TEST AND ADJUSTMENT (Contd) TESTING 1. Park test vehicle (1) at top of steep grade facing downhill and chock wheels (refer to TM 9-2320-361-10). 2. Park secondary vehicle (2) at bottom of steep grade facing test vehicle (1). WARNING • Wear leather gloves when handling cable. Do not let cable run through hands. Broken or rusty wires may cause injury to personnel. • Never stand between test vehicles. Assistant must remain in secondary vehicle to engage service brake if cable snaps or automatic brake fails. Failure to comply may result in injury to personnel. 3. Pull out drum lock lever (4) and turn 90° clockwise to unlocked position. Unwind cable (5) and connect to secondary vehicle (2). 4. Place secondary vehicle’s (2) transmission lever in neutral position. Disengage parking brake and disengage front wheel drive lever if engaged. CAUTION Do not use front winch to pay out line loads greater than 3,000 lb (1,362 kg) for any distance greater than 10 ft (3.1 m). Failure to comply may cause damage to equipment. NOTE Refer to TM 9-2320-361-10 for safe working loads. 5. Place winch drum clutch lever (3) in engage position. 6. Place transfer case shift lever (7) to neutral position and transmission power takeoff lever (8) to low position on test vehicle (1). WARNING Always use hand throttle to control engine speed when operating winch. Avoid sudden changes in speed. Rough or jerky operation may cause broken shearpins and snapped cables. Failure to comply may cause injury to personnel or damage to equipment. 7. Press clutch pedal (9) and start test vehicle (1). Place transmission gearshift lever (6) in 4th gear position. 8. Release clutch pedal (9) slowly. Using hand throttle (10), pull secondary vehicle (2) halfway up grade. Press clutch pedal (9) If secondary vehicle (2) rolls back down grade, adjust automatic brake. WHEEL CHOCK 2 1