Belt Maintenance
Inspecting the Belts
Service Interval:
Every 100 hours—Inspect the belts
for cracks and wear.
Check the belts for 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 mower belt if any of these conditions are
evident.
Replacing the Mower Belt
The signs of a worn mower belt are squealing while the
belt is rotating, blades slipping while you are cutting
grass, frayed belt edges, burn marks, and cracks. Replace
the mower belt if you detect any of these signs.
1. Disengage the PTO, move the motion control levers
to the neutral locked position, and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the belt covers over the outside spindles.
4. Loosen the fixed idler arm and adjust it to relieve
belt tension (Figure 61).
5. Remove the old belt.
6. Install the new belt on the pulleys (Figure 60).
Figure 60
1.
Fixed idler arm
4.
Mower belt
2.
Square hole
5.
Belt guide
3.
Fixed Idler pulley
6.
Spring-loaded idler pulley
7. Insert a ratchet with a short extension or a breaker
bar into the square hole in the fixed idler arm
(Figure 61).
8. Adjust the mower deck to the 3 inch (76mm)
height-of-cut position.
9. To increase the belt tension, rotate the ratchet or
breaker bar counterclockwise to move the fixed idler
arm until there is 6–1/2 inches (16.5 cm) between
the spring hooks (Figure 61).
Figure 61
1.
Ratchet with short
extension or breaker
bar
3.
Spring-loaded idler pulley
2.
6–1/2 inches (16.5 cm )
between the spring hooks
4.
Fixed Idler pulley
10. While holding the belt in tension, tighten the 2 bolts
that secure the fixed idler arm.
11. Remove the ratchet or breaker bar from the square
hole in the fixed idler arm.
12. Install the belt covers with the tabs in the slots.
Install the screws and close the latches (Figure 62).
13. Check the tension on the drive belts. Refer to
Adjusting the Drive Belts.
47
Summary of Contents for Z580-D
Page 6: ...Slope Chart 6 ...
Page 63: ...Schematics Wire Diagram Rev A 63 ...
Page 64: ...Notes 64 ...
Page 65: ...Notes 65 ...
Page 66: ...Notes 66 ...