Inspecting The Belts; Replacing The Mower Belt; Removing The Mower - Toro 74501 Operator's Manual

Inspecting the Belts

Inspect all belts every 100 hours.
Check the belts for cracks, frayed edges, burn marks, or any
other damage. Replace damaged belts.

Replacing the Mower Belt

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.
1. Stop the engine, set the parking brake, remove the key,
and disconnect the spark plug wire(s) from the spark
plug(s).
2. Set the height-of-cut at 1-1/2 in. (38 mm).
3. Remove the belt covers over the outside spindles.
4. Pull the idler pulley in the direction shown in Figure 43
and roll the belt off of the pulleys.
Note: Do not remove the spring.
Caution
The spring is under tension when installed and can
cause personal injury.
Do not remove the spring from the spring eye bolt.
5. Route the new belt through the idler arm and around the
idler pulley (Fig. 43).
3
1 4 5
6
Figure 43
Top View
1. Outer nut
2. Idler pulley
3. Idler arm
4. Spring eye bolt
6. Pull the idler pulley in the direction shown in Figure 43
and route the belt onto the other pulleys (Fig. 44).
7
2
m–4197
5. Spring
6. 1/8 in. 3 mm)
7. Mower belt
31
Note: Check to ensure that the length of exposed thread on
the spring eye bolt is 1/8 in. (3 mm) (Fig. 43).
7. Install the belt covers over the outside spindles.
4
Figure 44
Top View
1. Mower belt
2. Idler arm
3. Outside pulley

Removing the Mower

1. Park the machine on a level surface, disengage the PTO,
set the parking brake, stop the engine, and remove the
key. Disconnect the spark plug wire(s) from the spark
plug(s).
2. Lower the height-of-cut lever to the lowest position.
3. Remove the hairpin cotter and clevis pin from the front
trunion yokes (Fig. 45).
2
1
Figure 45
1. Hairpin cotter and clevis
pin
1
5
2 3
m–5157
4. Spring
5. Idler pulley
m–5178
2. Front trunion