Repairs
4 - 16
Winch Assembly
All components should be inspected for wear or damage
as they are removed. Refer to Figure 4-4, Visual Inspec-
tion. All seals that were removed should be replaced
during assembly. Carefully inspect all bearings that have
been removed. Used bearings often appear satisfactory,
but may fail when placed under a load. When in doubt,
it is recommended to install a new bearing. Any compo-
nent that indicates excessive wear or damage should
be replaced. The following reassembly and installation
sequence assumes a complete winch overhaul.
Figure 4-4 Visual Inspection
ITEM
INSPECTION REQUIREMENTS
CORRECTIVE ACTION
Drag Brake
Assembly
Inspect fl ange for leakage or damage.
Replace if sealing surfaces are damaged
Check the friction discs for wear, distor-
tion, or damage. The discs should be free
of hydraulic oil.
Replace the friction discs if the wear grooves are
worn away, the discs are burned, damaged, warped,
or exposed to oil. Brake cleaner may be used to clean
dust from the discs but will not remove impregnated oil.
Check that the separator plates are fl at, free
of large blue areas (caused by overheating)
or damaged surfaces.
Replace damaged separator plates.
Brake Assembly
Check for cracked or broken belleville/coil
springs.
Replace springs if cracked or broken.
Inspect housing and covers for leakage or
damage.
Replace component if sealing surfaces or splines are
damaged.
Check the friction discs for wear, distortion,
or damage. The discs should be free of
hydraulic oil. The minimum pack thickness
is 1.397”.
Replace the friction discs if the wear grooves are
worn away, the discs are burned, damaged, warped,
or exposed to oil. Brake cleaner may be used to clean
dust from the discs but will not remove impregnated oil.
Check the brake/motor shaft seals for leak-
age into the brake housing.
Replace damaged seals.
Inspect the brake/motor shaft for wear or
damage.
Replace a damaged shaft.
Check that the separator plates are fl at, free
of large blue areas (caused by overheating)
or damaged surfaces.
Replace damaged separator plates.
Inspect the piston for damage. Make sure
the seal groove and sealing surfaces are
in good condition.
Replace a damaged piston. Always replace the piston
seals when the brake is repaired.
Counterbalance
Relief Manifold
Check that all passages and cartridge
valves are free of contaminants.
Clean or replace cartridge valves. Clean all hydraulic
passages.
Control Manifold
Check that all passages and cartridge
valves are free of contaminants.
Clean or replace cartridge valves. Clean all hydraulic
passages.
Check torque on solenoid coils. Do not
over-tighten.
Check that solenoid spool moves freely. Replace
cartridge if stiction is present. Torque for solenoid car-
tridge is 20 ft-lbs. Torque for coil retaining nut is 5 ft-lbs.
(Continued on next page)
- Winch Assembly
Summary of Contents for H5C Series
Page 8: ...vi Notes...
Page 48: ...General 1 40 Notes...
Page 59: ...Troubleshooting 2 6 Notes...
Page 77: ...Service 3 18 Notes...
Page 86: ...Section 4 4 9 Intentionally Blank...
Page 104: ...Section 4 4 27 Intentionally Blank...
Page 108: ......
