TM 5-2350-378-23&P
FIELD MAINTENANCE
TROUBLESHOOTING PROCEDURES - WINCH WILL NOT PULL RATED LOAD
INITIAL SETUP:
Personnel Required
Tools and Special Tools
Construction Equipment Repairer, 91L (Two)
Tool Kit, General Mechanic's: Automotive
(WP 0054, Table 1, Item 7)
Parts Kit, Hydraulic (WP 0054, Table 1, Item 3)
Equipment Condition
Vehicle MASTER power OFF (TM 5-2350-262-10)
Vehicle on jack stands (TM 5-2350-262-20)
Materials/Parts
Pin, Cotter (WP 0055, Table 1, Item 10) Qty:
1
TROUBLESHOOTING PROCEDURE
WINCH WILL NOT PULL RATED LOAD
WARNING
High oil pressure is present in the M9 ACE hydraulic system. Do not disconnect any
hydraulic system component unless hydraulic system pressure has been relieved. After
hydraulic system has been relieved, wait at least four minutes before disconnecting any
hose or fitting. Ensure each of the hydraulic control levers is moved several times through
all positions and the hydraulic tank dipstick is slowly loosened to relieve pressure. Failure
to comply may result in severe injury or death to personnel.
Transmission shifting lines are pressurized. Do not disconnect lines, fittings, or
accumulator unless transmission shift control valve pressure has been relieved.
Discharge transmission shift accumulator by moving shift control lever through all forward
and reverse ranges several times, with engine off. Failure to comply may result in severe
injury to personnel.
CAUTION
Do not reuse drained captured hydraulic oil unless it has been filtered and is clean. Failure
to comply may result in damage to equipment.
NOTE
The winch hydraulic motor receives oil flow from control valve through circuit VA to PAY OUT
cable and through circuit VB to PAY IN cable. Hydraulic pressure is controlled by winch relief
valve C2. The winch motor case drain line is 7W.
0020-1
03/15/2011Rel(1.8)root(tswp)wpno(T00018)
