TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 a. General. The vehicle electrical system is used to power the winch. It is recommended to have engine running while operating the winch so the alternator recharges the battery. Increased engine rpms can be maintained by use of the hand throttle. When engaging or disengaging the clutch, it may be necessary to rotate the drum by hand to align gears. b. Preparation for Use. NOTE The eye of the winch cable needs a thimble to keep wires from shearing or breaking. Refer to unit maintenance for installation. (1) Park vehicle directly facing object to be winched. Place transmission shift lever in “N” (neutral), or “P” (Park) for M1123 and A2 vehicles. (2) Apply parking brake. (3) Start engine (para. 2-10). (4) Chock wheels. c. Unwinding Winch Cable. CAUTION Do not power out winch cable for more than 10 ft (3 m). Use free spool for paying out long lengths of winch cable. Failure to free spool long lengths of winch cable will cause damage to winch. (1) Turn clutch lever (1) counterclockwise to “FREE SPOOL.” WARNING • Wear leather gloves when handling winch cable. Do not handle cable with bare hands. • When fully extending winch cable, ensure that four wraps of winch cable remain on drum at all times. Failure to do this may cause injury or death to personnel. NOTE Allow 1 ft (30.5 cm) of slack in winch cable prior to start of winching operations. This allows time for winch motor start-up for maximum pulling power. (2) Pull out cable (5) by hand to desired length. Connect to load leaving 1 ft (30.5 cm) of slack in cable (5). d. Pulling Load. NOTE Refer to table 1-16 (6,000 lb), or table 1-17 (Optional 9,000 lb), Winch Data, for pulling load capacity. (1) Remove remote control switch (3) from stowage box (4). (2) Turn clutch lever (1) clockwise to “ENGAGED.” WARNING Direct all personnel to stand clear of winch cable during winch operation. A snapped winch cable will cause injury or death. 2-26. ELECTRIC WINCH OPERATION 2-134 Change 1