Mower Deck Maintenance; Removing The Mower Decks; Installing The Mower Decks; Servicing The Front Roller - Toro Groundsmaster 4500-D Operator's Manual

Mower Deck
Maintenance

Removing the Mower Decks

1. Park the machine on a level surface, engage the
parking brake, lower the mower decks, shut off
the engine, and remove the key.
2. Disconnect and remove the hydraulic motor
from the deck (Figure
spindle to prevent contamination.
Figure 98
1. Motor-mounting screws
3. Remove the lynch pin (for Groundsmaster 4500
machines) or retaining nut (for Groundsmaster
4700 machines) securing the deck-carrier frame
to the lift-arm pivot pin
Figure 99
1. Lynch pin
4. Roll the cutting deck away from the machine.
98). Cover the top of the
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(Figure 99).
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2. Lift-arm pivot pin

Installing the Mower Decks

1. Move the mower deck into position in front of
the machine.
2. Slide the deck carrier frame onto the lift-arm-pivot
pin (Figure 99). Secure the deck to the pin
with the lynch pin (for Groundsmaster 4500
machines) or retaining nut (for Groundsmaster
4700 machines).
3. Install the hydraulic motor to the deck
98). Make sure that the O-ring is in position and
not damaged.
4. Grease the spindle.

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. There should be a 1.5 mm (0.060
inch) lip of inner race exposed.
3
4
1
1. Front roller
2. Mounting bolt
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 100). Press on the outer race only or
equally on the inner and outer race.
2. Insert the spacer
73
(Figure
(Figure
2
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Figure 100
3. Bearing
4. Bearing spacer
(Figure 100). Replace
(Figure 100).
100).
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