Replacing The Pto Drive Belt; Replacing The Pump Drive Belt - Toro 74253 Operator's Manual

7. Rotate the ratchet or breaker bar to move the idler
plate until the idler spring is between 10 and 10-1/4
inches (25.4 and 26.0 cm) from post to post as
shown in Figure 59.
8. While holding the belt tension and spring length,
tighten the idler plate bolts that secure the idler plate
(Figure 59).
Figure 59
1. Belt guide install at a 45
degree angle
2. Idler spring length
(between 10 and 10-1/4
inches (25.4 and 26.0 cm))
3. Idler plate

Replacing the PTO Drive Belt

Service Interval: Every 50 hours
Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks
are signs of a worn PTO 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. Loosen the front engine panel knobs and remove
the panel (Figure 60).
4. Ratchet or breaker bar
5. Idler plate bolt
1. Knob
4. Remove the spring from the idler arm (Figure 61).
5. Remove the clutch stop bracket.
6. Remove the old PTO drive belt.
7. Install the PTO drive belt around the clutch pulley
and the gearbox pulley (Figure 61).
8. Intall the clutch stop bracket.
9. Install the spring to the idler arm (Figure 61).
1. PTO Drive belt
2. Gear box
3. Spring

Replacing the Pump Drive Belt

Service Interval: Every 50 hours
44
Figure 60
2. Front engine panel
Figure 61
4. Clutch
5. Spring loaded idler pulley