Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro 74444 Operator's Manual

6. Measure the distance between the trunnion roller
and the collar on the brake rod. The measurement
should be 3/16 to 1/4 inch (5 to 7 mm) (Figure 50).
7. If an adjustment is necessary, do the following:
A. Loosen the jam nut directly below the yoke.
B. Turn the bottom adjusting nuts until the correct
measurement is obtained (Figure 50).
C. Tighten the jam nut at the yoke.

Belt Maintenance

Inspecting the Belts

Service Interval: Every 100 hours
Check belts for cracks, frayed edges, burn marks or any
other damage. Replace damaged belts.

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 the
belt tension on the fixed idler pulley (Figure 51).
1. Fixed idler arm
2. Square hole
3. Fixed Idler pulley
5. Remove the old belt.
6. Install the new belt through the belt guide and on
the pulleys (Figure 51).
7. Insert a ratchet with a short extension or a breaker
bar into the square hole in the fixed idler arm
(Figure 52).
39
Figure 51
4. Mower belt
5. Belt guide
6. Spring-loaded idler pulley