Replacing The Drive Belt; Replacing The Traction Belt; Replacing The Deck Belt - Toro ProLine 30334 Operator's Manual

Figure 54
5. If it does not measure correctly, add air pressure in rear
tires to raise height–of–cut
6. If it does not measure correctly, decrease air pressure in
rear tires to lower height–of–cut.
7. Check carrier frame front–to–rear pitch.

Replacing the Drive Belt

Service Interval/Specification
Check all belts after every 50 operating hours or monthly,
whichever occurs first. Look for dirt, wear, cracks and signs
of overheating.
1. Disengage the power take off (PTO), set the parking
brake and turn the ignition key to "OFF" to stop the
engine. Remove the key.
2. Remove the drive spring from adjustment bolt (Fig. 55).
3. Remove belt from pulleys and over tire.
4. Install new belt and install drive spring.
2
3
Figure 55
1. Drive belt
2. Drive spring

Replacing the Traction Belt

1. Raise the front of the machine and hold with jack
stands.
m–2550
1
4
m–5372
3. Tire
4. Adjustment bolt
36
2. Disconnect clutch wire connector from wire harness.
3. Remove PTO drive belt. Refer to Replacing the PTO
Drive Belt on page 37.
4. Remove clutch retainer from the engine deck (Fig. 56).
5. Unhook tension spring from side of frame (Fig. 56).
6. Loosen pivot bolt enough to remove traction belt from
the drive pulley and clutch.
7. Install new belt around clutch and drive pulley.
8. Torque pivot bolt to 35-40 ft. lb. (47-54 N.m). Install
tension spring between idler arm and frame bracket
(Fig. 56).
9. Install clutch retainer to the engine deck (Fig. 56).
10. Connect clutch wire connector to wire harness.
11. Install PTO drive belt.
5
2
8
Figure 56
1. Traction belt
2. Idler pulley
3. Clutch retainer
4. Tension spring

Replacing the Deck Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks are
signs of a worn deck belt. Replace the deck belt if any of
these conditions are evident.
1. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Remove the knobs holding the carrier frame cover and
remove the carrier frame cover.
3. Remove the knobs holding the belt covers to the cutting
unit and remove the belt covers.
4. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt on page 37.
3 1
4
7
6
m–5321
5. Clutch wire connector
6. Pivot bolt
7. Drive pulley
8. Engine deck