STRUCTURALS 5540F/YB5515 SERVICE MANUAL
11-18
Repair
Removal
1. Remove the wire rope from the winch drum.
2. With the engine shut off, move the winch control level
back and forth several times to release any hydraulic
pressure in the winch hydraulic circuit.
3. Disconnect and cap or plug all hydraulic lines.
4. Attach an overhead hoist to the winch and remove the
hex bolts, structural washers and structural nuts
securing the winch to the mast assembly. Remove the
winch.
Winch Assembly
Disassembly
1. Stand the winch on its end with the motor pointing up.
2. Remove any hydraulic lines or hoses from the winch
assembly. Remove the motor and counterbalance valve
from the winch.
3. Remove the brake subassembly from the winch by
removing eight capscrews holding the brake housing to
the mounting bracket. Install two of the capscrews into
the extra two tapped holes (Figure 11-21) and tighten
then evenly until the brake housing has come loose from
the mounting bracket. See Brake Section for repair
instructions.
4. Using two crows foot pry bars (Figure 11-22) from inside
and pull it out of the cable drum. Remove the bearing 5
and seal 4 from the bearing carrier 11.
5. Remove the input sun gear (9) from the input planet
assembly.
6. Install three 1/4 inch eyebolts into the three planet pins in
the input planet set. Use a piece of chain (Figure 11-23)
to pull the planet set from the drum. Inspect the planet
set for wear and repair as needed. See Planet Sets
(Page 6-26) for repair instructions.
7. Remove the output sun gear and check drum teeth for
wear. This wear can be measured as follows:
a. Place a magnetic base dial indicator on the output
carrier and adjust the plunger of the dial indicator at
Reference Only
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