Troubleshooting - Allied Systems W8L Service Manual

Troubleshooting

This section includes Figures 2-23 and 2-24,
troubleshooting analysis check charts. The charts list
the most common troubles that may be encountered. A
possible cause and recommended corrective action are
PROBLEM
Overheating
Operation is rough
Figure 2-23 Troubleshooting Analysis Check Chart
POSSIBLE CAUSE
Plugged pressure fi lter.
Plugged suction fi lter.
One or both clutches dragging.
Low pressure.
Bevel shaft bearings set too tight.
Control cable binding causing winch
valve to not return to BRAKE-ON.
Winch control lever left in BRAKE-
OFF.
Excessive inching.
Hydraulic oil is too cold.
Low oil level.
Low system pressure.
Wrong oil.
Accumulator malfunction.
Tractor engine idling too low, or PTO
stalled.
Hydraulic system suction leaks.
Observe oil exiting lube valve while
tractor is operating. Suction leaks will
cause oil to foam.
Control lever/Control cables need
adjustment.
listed to restore the winch to normal operating condition.
Figure 2-23 applies to W8L winch, Figure 2-24 applies to
W8L winch equipped with optional FREESPOOL.
CORRECTION
Replace fi lter.
Remove suction fi lter, clean and replace.
Check by placing control lever in BRAKE-OFF.
Normally drum will rotate slowly in the LINE-IN
direction. If the reverse clutch is dragging, the drum
will rotate in the LINE-OUT direction. If forward
clutch is dragging, the drum will rotate positively in
the LINE-IN direction and it will take more than 100
lbs of line pull to prevent drum rotation.
Check for leaks, then adjust accordingly.
Adjust accordingly.
Make sure that there are no tight bends in the control
cable (minimum bend redii 5.00"), or replace cable.
Return the lever to BRAKE-ON.
Avoid continuous operation in the inching zone.
Put the control lever in the BRAKE-OFF position.
Run the engine at 1000 rpm to warm the oil before
operating the winch.
Add hydraulic oil to the correct level.
See item on troubleshooting low oil pressure directly
below.
Drain oil and replace with correct grade. Refer to
Figure 1-12, the
Recommended
Check accumulator and recharge/replace as
necessary.
Increase tractor engine speed.
Check the following for air leaks:
1. Suction hose to pump connection
2. Pump shaft seal
3. Suction fi lter cover and gasket
4. Suction hose for cracks or collapsed sections
Check for correct adjustment as outlined in
Subsection of Service. Make sure the ends of the
cables are fastened correctly. Double-check push-pull
cable housing to ensure it is securely anchored on
both ends. Be sure control lever has full movement
and is not hitting housing.
Section 2
Oil List in Section 1.
(Continue on next page)
2 - 19