Superwinch H14P – 6,350 kgs Manual Clutch (Long Drum) - Manual (Page 14)

Most hydraulic system failures follow the same pattern - a gradual or sudden loss of pressure or flow with a resulting
loss of motor power. Any one of the systems’ components may be at fault. By following step-by-step procedures, the
trouble can be isolated in a short time.
CONDITION POSSIBLE CAUSE CORRECTION
SYSTEM INOPERATIVE No oil in system Fill system. Check for leaks.
Insufficient oil in system. Fill system. Check for leaks.
Wrong oil in system. Refer to manufacturers’ specifications
& change oil.
Filter dirty or clogged. Drain oil and replace filter or filter element.
Oil line restriction. Oil Clean or replace.
lines dirty or collapsed.
Air leaks in pump suction Repair or replace as necessary.
line.
Worn or dirty pump. Clean, repair or replace. Check alignment.
Check for contaminated oil. Drain and flush
system.
Badly worn components. Examine and test for internal or external leak
age. Replace faulty components. Check for
cause of wear.
Leakage. Check all components, particularly the relief
valve, for proper settings. Refer to technical
manuals.
Excessive load. Check unit specifications for load limits.
Slipping or broken pump drive. Repair or replace belts, couplings, etc. Check
for proper alignment or tension.
SYSTEM OPERATES ERRATICALLY Air in system. Check suction side of system for leaks.
Repair.
Cold oil. Allow ample warm-up period.
Dirty or damaged components. Clean or repair as necessary.
Restriction in filters or lines. Clean and/or replace elements or lines.
SYSTEM OPERATES SLOWLY Oil viscosity too high; cold oil. Allow oil to warm up before operating
machine.
Low pump drive speed. Increase engine speed (check manual for
recommendations).
Low oil level. Check reservoir and add oil as necessary.
Air in system. Check suction side for leaks. Repair.
Badly worn pump, valves, etc. Repair or replace as needed.
HYDRAULIC SYSTEM TROUBLESHOOTING
10
10-1 HYDRAULIC SYSTEM TROUBLESHOOTING