If outside temperature is 0°F (-17°C) or lower, hydraulic fluid may be below operating
temperature. Operating system with PTO end hydraulic pump engaged should warm
hydraulic fluid to an operating temperature.
Start engine (refer to TM 9-2320-279-10).
Operate engine for 20 minutes.
Check hydraulic fluid temperature at reservoir. Reservoir should be warm.
6. Push WINCH KICKOUT control valve in to ENGAGE position. (WP 0015)
7. Prepare vehicle for heavy-duty winch operation. (WP 0015)
8. Operates heavy-duty winch manual controls, observe heavy-duty winch control operation. (WP 0015)
Do controls stick in engaged position after running engine for 20 minutes?
No - Test 3 - Is hydraulic fluid overheated?
Yes - Test 4 - Do winch controls operate normally?
TEST 3 - Is hydraulic fluid overheated?
1. If PTO is engaged, set PTO ENGAGE switch to OFF. (WP 0015)