De-pressurize the hydraulic system. Refer to unit maintenance procedure 5-118.
Note the position of and disconnect the hydraulic pipes connected to the upper winch.
Attach a crane with slings to the upper winch (4).
Remove the upper winch mounting nyloc nuts (3) and washers (2). Discard the nyloc nuts.
Remove upper winch (4).
Examine all threaded components for wear and damage.
Change components as required.
Position the upper winch (4) on the launch frame.
Apply thread-locking compound to the mounting bolts (1).
Secure the upper winch (4) on the mounting bolts (1) and secure with washers (2) and new
nyloc nuts (3).
Fit the hydraulic hoses in the positions noted during removal.