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Removal (Fig. 20)
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake, and remove key
from the ignition switch.
2. Remove cutting unit from the pivot shaft of the rear
lift arm (see Chapter 8 - Cutting Deck and Carrier Frame
in this manual).
3. Remove external retaining ring and thrust washer
from the lift cylinder shaft.
4. Remove flange head screw and thrust washer from
the rear pivot shaft.
5. Slide rear lift arm from rear pivot shaft and hydraulic
cylinder.
6. Repair lift arm as necessary.
Installation
1. If the rear lift arm pivot shaft was removed from
frame:
A. Thoroughly clean tapered surfaces of shaft and
frame.
B. Position pivot shaft to frame and secure with
washer and jam nut. Torque jam nut from 200 to 250
ft- lb (271 to 339 N- m).
2. If the cutting unit pivot shaft was removed from lift
arm:
A. Apply anti- seize lubricant to pivot shaft before in-
serting into lift arm.
B. Secure pivot shaft with two (2) cap screws and
washer.
Groundsmaster 3500
3. Slide rear lift arm onto rear pivot shaft and through lift
cylinder clevis simultaneously.
4. Apply blue Loctite 242 to cap screw and secure lift
arm to pivot shaft with cap screw and washer.
5. Secure hydraulic cylinder clevis with the thrust wash-
er and external retaining ring.
6. Install cutting unit to the rear lift arm (see Chapter 8
- Cutting Deck and Carrier Frame in this manual).
7. Adjust lift arm to proper clearance (see Adjust Rear
Lift Arm in this chapter).
IMPORTANT: Make sure hoses are free of twists and
sharp bends. Raise cutting units and shift them to
the left. Rear cutting unit hoses must not contact the
traction cable bracket. If required, reposition fit-
tings and hoses.
8. Grease rear lift arm.
Page 7 - 21
Wheels, Brakes,and Chassis
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Troubleshooting
