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 216 of 452
OPERATING WINCH AT TEMPERATURES BELOW -25° F (-32° C)
(M916 AND M920)
CAUTION
Avoid winching operations that cause sudden shock loads.
At extremely cold temperatures, metals become brittle and
sudden shock loads can cause equipment damage. Failure to
comply may result in damage to equipment.
1. After the winch has been serviced by Field Maintenance and before operating the
winch, warm up hydraulic system by engaging PTO and operating tractor at fast
idle for 30 minutes.
2. After warming hydraulic system, operate the winch in no-load condition by
paying out about 100 feet of the wire rope at low speed. Take up the wire rope at
low speed. Winch should be ready for normal operation.
END OF TASK
ENGAGING POWER TAKE-OFF (PTO) FOR WINCH OPERATION (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 an injury.
Avoid quick jerking action on cables when operating winch
to prevent excessive loading on the cable. Keep personnel
not involved in winching away from winch cables and
payload. A snapping cable or shifting load can cause serious
injury. Stop winching immediately if shifting payload
presents a hazard, or if any component fails, and notify Field
Maintenance. Seek medical attention in the event of an
injury.
CAUTION
The winch is not to be used for moving or lifting people. Do
not shift the transmission with the power take-off (PTO)
engaged. The gears stop during shifting, which could cause
excessive loading of power take off. Failure to comply may
result in damage to equipment.
Keep engine speed above 1,100 rpm after engaging PTO.
Failure to comply may result in damage to equipment.
1. Place transmission ratio selector in neutral (N).
2. Operate engine at low idle and set parking brakes.
3. Move ratio selector to 1st speed and pull PTO knob to engage the PTO. Return
ratio selector back to neutral (N).
TM 9-2320-273-10
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