Toro 30821 Service Manual page 219

Removal
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 Cutting Unit Removal).
3. Remove external retaining ring and thrust washer
from the lift cylinder shaft of the rear lift arm.
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. Disassemble lift arm as necessary using Figure 20
as a guide.
Installation
1. Assemble lift arm using Figure 20 as a guide.
A. If the rear lift arm pivot shaft (item 24) was re-
moved from frame, thoroughly clean tapered sur-
faces of shaft and frame. 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).
B. If the cutting unit pivot shaft (item 31) was re-
moved from lift arm, apply antiseize lubricant to pivot
shaft before inserting into lift arm. Secure pivot shaft
with two (2) cap screws (items 32 and 33) and wash-
er (item 34).
Groundsmaster 3500--D
2. Slide rear lift arm onto rear pivot shaft making sure
that the lift cylinder shaft of the rear lift arm slides into the
clevis of the hydraulic cylinder.
3. Secure hydraulic cylinder clevis to the lift cylinder
shaft of the rear lift arm with the thrust washer and exter-
nal retaining ring.
4. Install rear cutting unit to the pivot shaft of the rear lift
arm (see Cutting Unit Removal).
5. Adjust lift arm to proper clearance (see Adjust Rear
Lift Arm).
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.
6. Grease rear lift arm (see Lubrication in Chapter 2 --
Product Records and Maintenance).
Page 6 - - 21 Rev. D Wheels, Brakes,and Chassis