Toro 74991 Z Master Professional 5000 Series, Operator'S Manual

Page: 54 / 76

Belt Maintenance
Inspecting the Belts
Service Interval: Every 50 hours
Replace the belt if it is worn. The signs of a worn belt include
squealing while the belt is rotating; the blades slipping while
cutting grass; and frayed edges, burn marks, and cracks on
the belt.
Replacing the Mower Belt
1. Disengage the blade-control switch (PTO), move the
motion-control levers to the N
EUTRAL
-
LOCK
position,
and set 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 inch) height-of-cut.
4. Remove the belt covers ( Figure 81 ).
Figure 81
5. Use a ratchet in the square hole in the idler arm to
remove tension on the idler spring (
Figure 82 ).
6. Remove the belt from the mower-deck pulleys.
7. Remove the belt guide on the spring-loaded idler arm
(
Figure 82 ).
8. Remove the existing belt.
9. Install the new belt around the mower pulleys and the
clutch pulley under the engine (
Figure 82 ).
g017627
Figure 82
1. Clutch pulley 5. Square hole in the idler
arm for the ratchet
2. Mower belt 6. Idler-grease fitting
3. Spring-loaded idler pulley 7. Belt guide
4. Ratchet
10. Install the belt guide on the idler arm ( Figure 82 ).
11. Using the ratchet in the square hole, install the idler
spring (
Figure 82 ).
Note:
Make sure to seat the spring ends in the anchor
grooves.
12. Install the belt covers ( Figure 83 ).
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