Belt Maintenance; Inspecting The Belts; Replacing The Mower Belts - Toro Z Master Professional 7500-D Series Operator's Manual

Belt Maintenance

Inspecting the Belts

Service Interval: Every 50 hours
Check the belts whenever they squeal while rotating,
the blades slip while cutting grass, or if the belts have
frayed edges, burn marks, or cracks. If any of these
conditions occur, replace the belts.

Replacing the Mower Belts

Replacing the Wing Deck Belts
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks
and cracks are signs of a worn mower belt. Replace
the belt if any of these conditions are evident.
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Lower the mower to the 76 mm (3 inches) height
of cut.
4. Remove the 2 lynch pins from the outer belt
cover and remove the outer cover
5. Rotate the inside belt cover upward
Figure 60
1. Inside belt cover
2. Outer belt cover
6. Remove the floorboard.
7. Using a ratchet in the square hole in the idler
arm, rotate the idler arm rearward to remove
tension on the idler spring
(Figure 60).
(Figure 60).
g243946
3. Lynch pin
(Figure 61).
8. Remove the belt from the mower deck pulleys
(Figure 61).
1. Square hole in the idler
arm for the ratchet
2. Wing deck mower belt
9. Install the new belt around the mower deck
pulleys.
10. Install the belt covers and floorboard.
11. Repeat this procedure for the other wing deck
belt.
Replacing the Center Deck Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks
and cracks are signs of a worn mower belt. Replace
the belt if any of these conditions are evident.
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Lower the mower to the 76 mm (3 inches) height
of cut.
4. Remove the 2 wing deck belts; refer to
the Wing Deck Belts (page
5. Use a ratchet in the square hole in the idler arm
to remove tension on the idler spring
6. Remove the belt from the mower deck pulleys
(Figure 62).
Note:
The belt comes off at the bottom of the
gearbox pulley.
59
Figure 61
3. Spring
Replacing
59).
(Figure
g243945
62).