Manitowoc Grove 5540F Service Manual page 118

HYDRAULIC SYSTEM
a0773
Installation
1. Place a new gasket on the face of the swing motor
mounting flange.
2. Align the splines of the swing motor shaft with the
splines of the worm gear shaft of the swing gear box.
Install the swing motor to the gearbox with two socket
head capscrews and lockwashers.
a0980
Installation
1. Install the line mount body Figure 4-60, spacer and
adapter flanges to the winch motor. Be sure to use new
o-ring seals.
2. Install the winch motor and new gasket to the winch
using two capscrews and lockwashers.
4-54
3. Connect the hydraulic lines and fittings to the swing
motor.
4. Start the engine and slowly rotate the mast to remove
any air in the swing hydraulic circuit. Check for leaks.
Winch Motor
Removal
1. Shut off the engine, set the parking brake.
2. Before disconnecting the hydraulic lines, clean the port
area of the winch motor thoroughly. Disconnect the
hydraulic lines from the winch motor. Put caps and plugs
on the hoses and ports to keep dirt out.
3. Loosen
lockwashers securing the motor to the winch. Remove
FIGURE 4-59
the winch motor and gasket. Discard the gasket.
4. Remove hoses, fittings, the adapter flanges, spacer
block and line mount body Figure 4-60 from the pump.
Discard all o-rings. The Tulsa model is shown, but the
Braden model is similar.
Disassembly
The winch motor is not field serviceable. It must either be
replaced or returned to your dealer for repair.
To inhibit cavitation and damage to the motor due to lack
of lubricating hydraulic oil, DO NOT start the motor
without first being filling the motor with hydraulic oil.
Published 10-21-2010, Control# 198-04
5540F/YB5515 SERVICE MANUAL
and remove the two
CAUTION
capscrews and
FIGURE 4-60