28
1
2
Figure 40
1.
V-belt cover
2.
Retainer
3. To increase belt tension, loosen the engine mounting
bolts and move engine backwards in the slots.
Important
Do not over tension the belt.
4. Tighten the mounting bolts.
Note: The distance between the centers of the driver and
the driven pulleys should be approximately 5.18 in.
(13.15 cm) after new V-belts are installed.
5. After tensioning the primary V-belts, check the
alignment of the engine output shaft pulley and the
countershaft pulley with a straight edge.
6. If the pulleys are misaligned, loosen the screws securing
the engine mounting base to the mower frame and slide
the engine from side to side until the pulleys are aligned
within 0.030 in. (0.07 cm).
1
2
3
Figure 41
1.
Primary V-belts
2.
Belt guide
3.
Idler pulley
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 (Fig. 41, inset) as follows:
A. Engage the clutch.
B. Loosen the capscrew securing the idler pulley and
belt guide to the idler arm.
C. Rotate the belt guide clockwise until a gap of
approximately 0.06 in. (0.15 cm) is obtained
between the guide finger and the backside of the
drive belts.
D. Tighten the capscrew and 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 capscrews 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 belt
tension.
3. Remove the belts.
4. Remove the capscrews securing the front and rear
sections of the differential cover to the differential
housing and slide the cover sections away to expose the
belt (Fig. 42).
1
3
2
Figure 42
1.
Differential cover sections
2.
Front clutch housing
3.
Right rear bearing
housing
