Belt Maintenance; Inspecting The Belts; Replacing The Mower Belt - Toro 74271 Operator's Manual

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

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. 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.
4. Loosen the nut securing the idler plate and move
the idler plate to relieve the belt tension on the idler
pulley (Figure 50).
5. Remove the nut, washer and belt guide from the rear
leftside pulley.
6. Remove the mower belt from the belt guides and
remove the belt (Figure 50).
7. Install the new mower belt around the mower spindle
pulleys, mower idler pulley, into the belt guides, into
rear idler arm assembly, and the clutch (Figure 50).
8. Install the belt guide with a washer and nut onto the
rear leftside pulley.
Note: Check the amount of twist in the belt
between the pulleys. Ensure it is only what is
specified in Figure 50.
1. Clutch
2. Mower belt
3. 1/4 trun belt twist
4. Belt guide
5. Mower spindle pulley
9. Adjust the belt tension, refer to Adjusting the Mower
Belt Tension
10. Install the belt covers and close the latches
(Figure 51).
1. Belt cover
2. Latch
40
Figure 50
6. Mower idler pulley
7. Belt guide installed
8. Nut
9. Washer
10. Rear left side pulley
Figure 51
3. Insert slot into the tab