Servicing The Front Roller - Toro Groundsmaster 4500-D Operator's Manual

Note:
Make sure the decks are lowered onto a clean
section of turf or hard surface to avoid thrown dust
and debris.
1. Have a second person stand back from the deck
at least 6 m (20 ft) and watch the blades on 1 of
the cutting decks.
2. Shut the cutting decks down and record the time
it takes for the blades to come to a complete
stop.
Note:
If this time is greater than 7 seconds,
the braking valve needs adjustment. Call your
Toro Distributor for assistance in making this
adjustment
To verify this stopping time, have a second person
stand back from the deck at least 6 m (20 feet) and
watch the blades on one of the cutting decks. Have
the operator shut the cutting decks down and record
the time it takes for the blades to come to a complete
stop. If this time is greater than 7 seconds, the braking
valve needs adjustment. Call your Toro Distributor for
assistance in making this adjustment.

Servicing the Front Roller

Inspect the front roller for wear, excess wobble, or
binding. Service or replace the roller or components if
any of these conditions exist.
Disassembling the Front Roller
1. Remove the roller mounting bolt
2. Insert a punch through the end of the roller
housing and drive the opposite bearing out by
alternating taps to the opposite side of inner
bearing race.
Note:
There should be a 1.5 mm (0.060 inch)
lip of inner race exposed.
1. Front roller
2. Mounting bolt
(Figure
Figure 91
3. Bearing
4. Bearing spacer
3. Push the second bearing out in press.
4. Inspect the roller housing, bearings, and bearing
spacer for damage
damaged components and assemble.
Assembling the Front Roller
1. Press the first bearing into the roller housing
(Figure
equally on the inner and outer race.
2. Insert the spacer
3. Press the second bearing into the roller housing
(Figure
outer race until the inner race comes in contact
with the spacer.
4. Install the roller assembly into the deck frame.
5. Verify that there is no more than a 1.5 mm (0.060
inch) gap between roller assembly and the roller
mount brackets of the deck frame. If there is a
gap over 1.5 mm (0.060 inch), install enough 5/8
inch diameter washers to take up the slop.
Important:
with a gap larger than 1.5 mm (0.060 inch)
creates a side load on the bearing and can
lead to premature bearing failure
6. Torque the mounting bolt to 108 N-m (80 ft-lb).
91).
g011356
68
(Figure 91). Replace
91). Press on the outer race only or
(Figure 91).
91) by pressing equally on the inner and
Securing the roller assembly