Replacing The Mower Belt For 72In Mower Decks - Toro 74253 Operator's Manual

1. Mower belt
2. Mower spindle pulley
3. Mower idler pulley
Replacing the Mower Belt for
72in Mower Decks
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 (Figure 59).
Figure 58
4. Belt guide
5. Gearbox pulley
6. Spring
1. Belt cover
2. Latch
4. Loosen the idler plate bolts holding the idler plate
(Figure 62).
5. Remove the idler spring.
6. Remove the belt guide on the spring loaded idler
pulley shown in Figure 60 and Figure 62.
7. Remove the existing belt.
8. Install the new belt around the mower pulleys and
the gearbox pulley under the engine (Figure 60).
1. Mower belt
2. Mower spindle pulley
3. Spring loaded idler pulley
4. Belt guide at a 45 degree
angle
9. Install the belt guide on the spring loaded idler at a
45 degree angle as shown in Figure 58 and Figure 62.
Torque the bolt to 27 to 33 ft-lb (37 to 45 N-m).
45
Figure 59
3. Insert slot into the tab
Figure 60
5. Gearbox pulley
6. Idler spring
7. Idler plate