Belt Maintenance; Checking The Belts; Replacing The Traction Drive Belt; Replacing The Drive Belt - Toro 30672 Operator's Manual

Belt Maintenance

Checking the Belts

Service Interval: Every 50 hours/Monthly (whichever
comes first)—Check the belts.
Check belts for cracks, frayed edges, burn marks, wear, signs
of overheating or any other damage. Replace damaged belts.
Replacing the Traction Drive
Belt
1. Remove hairpin cotter securing brake rod to brake arm
to relax belt idler tension (Figure 40).
2. Remove bottom and loosen top bolts of shield to
rotate for belt clearance (Figure 40).
3. Lift the belt past idler and off the drive pulley
(Figure 40).
4. Raise the wheel off ground enough to allow belt
removal.
5. Replace the traction drive belt.
6. Secure shield with previously removed bolt and tighten
bolts (Figure 40).
7. Secure brake rod to brake arm with hairpin cotter
(Figure 40).
Figure 40
1. Hairpin cotter
2. Brake rod

Replacing the Drive Belt

1. Disengage the blade control (PTO) lever and set the
parking brakes.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Raise the rear of the machine and hold it up with jack
stands.
4. Remove the mower belt (Figure 41).
3. Shield
4. Drive belt
1. Idler pulley in slot
2. Traction belt
3. Mower belt
5. Loosen the pivot bolt enough to slide the idler pulley in
the slot and remove the traction belt from the engine
and the drive pulleys (Figure 41).
6. Install the new drive belt around the engine and the
drive pulleys (Figure 41).
7. Slide the idler pulley in the engine frame to tension the
traction belt (Figure 41).
8. Install the mower belt (Figure 41).
9. Check the belt guide under the engine frame for the
proper adjustment (Figure 41).
Note: The distance between the belt guide and mower
belt should be 19 mm (3/4 inch) when the mower
belt is engaged. Adjust the belt if necessary. The
disengaged belt should not drag or fall off the pulley
when the guides are properly adjusted.

Replacing the Mower Belt

Important: The brake needs to be adjusted when the
belt tension or the brake linkage is adjusted.
1. Disengage the blade control (PTO) lever and set the
parking brakes.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Remove the knobs and the belt cover on the mower.
4. Remove the idler pulley and the worn belt.
5. Install the new mower belt.
6. Install the idler pulley.
7. Engage the blade control (PTO) lever and check
the belt tension. Refer to Adjusting the Mower Belt
Tension.
Note: The proper mower belt tension is 44-67 N-m
(10-15 ft-lb) with the belt deflected 13 mm (1/2 inch)
halfway between the pulleys (Figure 45 or Figure 46).
32
Figure 41
4. Belt guide
5. 19 mm (3/4 inch)
6. Mower belt