Set engine speed at 16001800 rpm.
MAIN WINCH COMBINATION CONTROL VALVE ADJUSTMENT--Perform steps 5 thru 10 to
adjust the main winch combination control valve to achieve winching requirements.
This adjustment must be performed with the hydraulic reservoir oil temperature at 100 F130 F
(38 C54 C).
If using load cell, adjust relief pressure to achieve desired pull by turning adjusting screw (111) on main winch combination
control valve. Turning in clockwise direction will increase pressure:
--88,00092,000 lb (39,91741,731 kg) pull with cable off nose roller.
--83,00087,000 lb (37,64939,463 kg) pull with cable over nose roller.
If using load cell, activate winch to INHAUL in low gear. If using anchor, activate winch to INHAUL. If using winch brake,
activate winch to pay out.
If using anchor or winch brake, adjust relief pressure to original value recorded in Vehicle Log Book.
Verify setting with locking nut in locked position, and record new setting in Vehicle Log Book.
Disconnect pressure gage. Disconnect load cell or anchor, or readjust winch brake as necessary.
10. Verify pay out and inhaul.
If adjustment procedure was done using load cell, no further load test is required. If adjustment was
made using anchor or brakes, proceed with the load test that follows.
LOAD TEST--Perform steps 1 thru 3 for the load test of the main winch.
The following load test must be performed with the hydraulic reservoir oil temperature at 100 F130 F
(38 C54 C).
Verify winching capability by attaching winch cable to a vehicle with the towed vehicle transmission in neutral.
Winch vehicle must be at least 10 ft (3.05 m).
If vehicle fails to pass the load test, repeat the above ADJUSTMENT and TESTING procedures.
END OF WORK PACKAGE
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