Service Manual

Groundsmaster 4500 --D/4700--DCutting Decks Page 8 -- 16
Front Roller Service
Disassembly (Fig. 18)
1. Remove roller mounting bolt.
2. Remove roller assembly from carrier frame.
3. To remove bearings and bearing spacer:
A. Insert punch through end of roller and drive oppo-
site bearing out by alternating taps to opposite side of
inner bearing race. There should be a lip of inner race
exposed for this process.
B. Remove bearing spacer. Remove second bear-
ing from roller using a press.
4. Inspect roller housing, bearings and bearing spacer
for damage or wear. Replace components as needed.
Assembly (Fig. 18)
1. Install bearings and bearing spacer into roller:
IMPORTANT: Use Front Roller Bearing Installation
Tool (see Special Tools in this chapter) when in-
stalling bearings into roller. This tool ensures that
no side load is applied to the bearings during install-
ation into the front rollers.
A. Press first bearing into housing. Press equally on
inner and outer races d uring installation.
B. Insert bearing spacer.
C. Press second bearing into roller housing press-
ing equally on inner and outer races until the inner
race comes in contact with the bearing spacer.
2. Install roller assembly to deck frame.
NOTE: Securing roller assembly with a gap larger than
0.060 inch (1.5 mm) creates a side load on bearings and
can lead to premature bearing failure.
3. Verify that there is no more than a 0.060 inch (1.5
mm) gap between roller assembly and the roller mount
brackets of the deck frame. I f this gap is larger than
0.060 inch (1.5 mm), shim excess clearance with 5/8”
washers.
4. Insert mounting bolt and tighten to 65 to 95 ft--lb (89
to 128 N--m).
1. Mounting bolt
2. Bearing
3. Bearing spacer
4. Front roller
Figure 18
65 to 95 ft--lb
(89 to 128 N--m)
3
4
2
1
2