Replacing The Differential Belt - Toro 04038 Operator's Manual

4
3
1 2
G016992
1. Locknut
2. Belt guide
7. Tighten the mounting screws and check the alignment.
8. To push or pull the machine easier without starting
the engine, adjust the belt guide (Figure 40, inset) as
follows:
A. Engage the clutch.
B. Loosen the locknut securing the idler pulley and
belt guide to the idler arm.
C. Rotate the belt guide clockwise until a gap of
approximately 0.15 cm (0.06 inch) is obtained
between the guide finger and the backside of the
drive belts.
D. Tighten the locknut securing the idler pulley and
belt guide to the idler arm.
9. Close the cover and secure the retainer.

Replacing the Differential Belt

1. Remove the bolts securing the traction drive and reel
drive belt covers to the right side plate and remove the
belt covers.
2. Loosen the idler pulley mounting nut on each idler
pulley and pivot each idler pulley counterclockwise
away from the backside of each belt to release the belt
tension.
3. Remove the belts.
4. Remove the bolts securing the front and rear sections
of the differential cover to the differential housing and
slide the cover sections away to expose the belt (Figure
41).
Figure 40
3. Idler pulley
4. Idler arm
1. Differential cover sections
2. Front clutch housing
5. Loosen the idler pulley mounting nut on the differential
idler pulley and pivot the idler pulley counterclockwise
away from the backside of the belt to release the belt
tension.
6. Remove the 2 bolts and locknuts securing the front
clutch housing to the side plate (Figure 41).
7. Rotate the housing 180° so the bottom of the housing
points upward.
8. Remove the 2 bolts and locknuts securing the right rear
bearing housing to the side plate (Figure 41).
9. Rotate the housing 180° so the bottom of the housing
points upward. Remove the old belt.
10. Slide the new belt over the rotated housing covers, the
differential cover sections, and onto the differential
pulleys.
11. Ensure that the idler pulley is positioned against the
backside of the belt.
12. Rotate both housings back into the upright position
and secure them to the side plate with the bolts and
nuts previously removed.
13. Adjust the differential belt tension; refer to Replacing
the Differential Belt (page 29).
14. Adjust the belt tension on the traction drive and reel
drive belts; refer to Adjusting the Traction Drive Belt
(page 27), and Adjusting the Reel Drive Belt (page 27).
15. Install the differential, traction drive, and reel drive
covers.
29
Figure 41
3. Right rear bearing housing