TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 218 of 452
OPERATING WINCH (M916 AND M920)
WARNING
Hearing protection is required during winching operations.
Failure to comply may result in damage to hearing. Seek
medical attention in the event of injury.
Always wear heavy gloves when handling the winch wire
rope. Never allow the cable to run through your hands as
broken wires can cause painful injuries. Failure to comply
may result in injury to personnel. Seek medical attention in
the event of an injury.
CAUTION
Do not pull up on control lever 2. This position is for
operating equipment not used on the M915 series vehicles.
Failure to comply may result in damage to equipment.
Observe drum to ensure wire rope is not completely paid
out. Never operate winch with less than four turns of line on
drum. Failure to comply may result in damage to equipment.
NOTE
The rated winch pull is set by limiting the hydraulic system
relief valve pressure to a maximum of 2,100 psi which
provides 45,000 lb (20,250 kg) pull on the bare drum. As the
winch drum is loaded with line, the effective line pull is
reduced. The line pull per cable layer with 7/8 inch wire
rope is:
1st layer 45,000 lb (20,250 kg)
2nd layer 39,265 lb (17,810 kg)
3rd layer 34,775 lb (15,773 kg)
4th layer 31,210 lb (14,156 kg)
5th layer 28,310 lb (12,841 kg)
Loading procedures will vary depending on the size and type
of equipment to be transported.
The winch speed is normal in low speed. High speed is
recommended for paying line out or taking up slack only.
1. Lower pusher axle.
2. Have crew member disconnect the wire rope clevis from its anchor.
3. Pull up on winch control lever 2 to the middle position.
4. To pay out the line, pull up and hold winch control lever 1 in full up position.
The winch will unwind in low speed. Have crew member walk end of the wire
rope out.
TM 9-2320-273-10
0012
0012-20
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