Allied Systems Allied H6G Series User Manual

Section 2
2 - 1
Troubleshooting
General
Winch problems generally fall into one of three categories:
controls, hydraulic system, or mechanical system. Follow
the troubleshooting steps below to isolate the probable
location of the malfunction.
1. Make sure the joystick control assembly (including
pilot controller unit) is functioning properly, with a full
range of motion.
2. Check the oil level and type. Ensure the operating
temperature range for the oil is suitable for the condi-
tions. Check the fi lter indicator.
3. Check winch hydraulic pressures. Start with control
pressures (see Figure 2-1), then check main system
pressures.
4. Inspect the winch gear train for problems.
For best operation and life, the winch oil
operating temperature should not exceed
180°F (82°C). Winch oil reservoir temperature
is monitored at the dozer. The John Deere
750J/850J warning light will come on at 200°F
(93°C).
John Deere 750J/850J
Pilot Control Valve Metering Curve
0
100
200
300
400
500
600
0123456789101112131415161718192021
Lever Travel (°)
Pilot Pressure (psi)
0 psi
135.3 psi
439 psi
Normal
Deviation
Figure 2-1 Output Pressures from Pilot Controller Unit on Control Lever vs.
Angle of Lever Defl ection

Allied Systems Allied H6G Series Specifications

General

Brand	Allied Systems
Model	Allied H6G Series
Category	Winches
Language	English