TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 e. Towing M996, M996A1, M997, M997A1, and M997A2 Ambulance Vehicles from Rear (Rear Wheels Up). (1) Install eye (12) of towbar (9) in pintle hook (11) of towing vehicle and secure pintle hook (11) with cotter pin (10). (2) Remove two safety pins (16) and connector pins (3) securing two clamps (2) to towbar extension legs (7) and remove clamps (2). (3) Install two clamps (2) on rear bumper (1) of disabled vehicle with adjusting nuts (17) facing downward and clamp chains (18) over top of bumper (1). (4) Remove two safety pins (14) and extension pins (13) securing extension legs (7) to towbar (9), and adjust extension legs (7) length to attach to two clamps (3). Secure extension legs (7) to two clamps (2) with two connector pins (3) and safety pins (16). (5) Secure extension legs (7) to towbar (9) with two extension pins (13) and safety pins (14). (6) Tighten two adjusting nuts (17) on clamps (2) to secure clamp chains (18) to bumper (1). CAUTION Wrecker hoisting boom should be positioned so that chain from wrecker boom hook to towing pintle makes minimal contact with rear of ambulance body. It may be necessary to extend towbar legs to provide sufficient hoisting chain clearance to prevent damage to rear of ambulance body. (7) Attach hoisting chain (5) to wrecker boom hook (6) and towing pintle (4) of towed vehicle, ensuring towing pintle latch (15) is facing downward. (8) Attach and secure safety chain (8) to frame of disabled vehicle and to wrecker, directly behind bumper (1). Allow chain (8) to dip to approximately 1 ft (30.5 cm) above ground. WARNING Prior to towing vehicle with rear wheels up, secure steering wheel to prevent front wheels from turning. Failure to do this may cause damage to vehicle, injury, or death. (9) Secure steering wheel. (10) If towing distance is more than 30 mi (48 km), remove front propeller shaft. (11) Place transmission and transfer case shift levers in “N”(neutral) position. (12) Lift rear end of disabled vehicle off ground. CAUTION Do not exceed 15 mph (24 kph) towing speed. Avoid sharp turns and U-turns when towing. Failure to comply may cause damage to equipment. (13) Proceed with towing operations. 2-132