TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 2-24. TOWING OPERATION CAUTION • Do not exceed a towing speed of 30 mph (48 kph) or a towing distance of 30 mi (48 km) without first removing the front propeller shaft and/or rear propeller shaft with the parking brake rotor as specified in table 2-3. Failure to remove the necessary propeller shafts may result in damage to the transmission and/or transfer case. • Before initiating vehicle recovery, operator should be familiar with basic vehicle recovery techniques and precautions. Refer to FM 20-22, Vehicle Recovery Operations. NOTE • If propeller shafts are to be removed, notify unit maintenance personnel. • Towing pintle (front bumper) provides improved driver control when moving trailers in hard-to-maneuver areas and during aircraft loading operations. a. Towing Vehicle from Front (Four Wheels on Ground). CAUTION Always use a tow bar when towing vehicle. Failure to do so may cause damage to equipment. (1) Attach towbar (2) to the towing shackle brackets (4) of the vehicle to be towed and to the pintle hook (1) of the towing vehicle. (2) Attach safety chain (5) to vehicle frames directly behind bumper (3) or bumperette (6). Let safety chain (5) dip to about 1 ft (30.5 cm) from the ground. (3) If towing operation is over a distance of 30 mi (48 km), or towing speed is expected to be over 30 mph (48 kph), remove propeller shafts specified in table 2-3. (4) Place transmission and transfer case shift levers in “N” (neutral). (5) Depress parking brake release button and release parking brake lever. (6) Proceed with towing operation. The vehicle is capable of towing a vehicle of similar weight, fully loaded, for a distance of 50 mi (80 km). Table 2-3. Towing Operations Vehicle Towing Mode Prop Shafts Rear wheels up Front off Front wheels up Rear off (Parking brake rotor removed) Four wheels on ground Front and rear off (Parking brake rotor removed) 2-126 Change 2