Belt Maintenance; Replacing The Traction-Drive Belt; Replacing The Transmission Belt; Replacing The Mower Belt - Toro 30074 Operator's Manual

Belt Maintenance

Replacing the Traction-Drive
Belt
Service Interval: Every 50 hours/Monthly (whichever
comes first)—Check the traction-drive
belt
Look for cracks, wear, and signs of overheating.
1. Remove the top bolt securing idler support and idler
bracket to rear frame
Figure 48
1. Top bolt
2. Idler bracket
3. Idler support
2. Loosen bottom 2 mounting screws enough to allow
belt to pass between drive pulley and idler support
(Figure 48).
3. Raise the wheel off the ground, to allow the belt to be
removed, and remove the belt.
4. Install a new belt.
5. Install the top bolt securing the idler support and idler
bracket to the rear frame
6. Tighten the bottom 2 mounting screws enough to
allow the belt to pass between the drive pulley and the
idler support (Figure
Replacing the Transmission
Belt
Service Interval: Every 50 hours
1. Disengage the PTO 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 PTO drive belt. Refer to Replacing the
PTO Drive Belt in the
4. Raise the front of the machine and hold with jack
stands.
(Figure 48).
4. Bottom bolt
5. Traction-drive belt
(Figure 48).
48).
Belt Maintenance (page 35).
5. Disconnect the clutch wire connector from the wire
harness.
6. Disconnect the clutch retainer from the engine deck
(Figure 49).
1. Transmission belt
2. Idler pulley
3. Clutch retainer
4. Tension spring
7. Unhook the tension spring from the side of the frame
(Figure 49).
8. Loosen the pivot bolt enough to remove the traction
belt from the drive pulley and clutch.
9. Install the new belt around the clutch and drive pulley.
10. Torque pivot bolt to 47-54 N-m (35-40 ft-lb).
11. Install the tension spring between the idler arm and
frame bracket (Figure
12. Install the clutch retainer to the engine deck
13. Connect the clutch wire connector to the wire harness.
14. Install the PTO drive belt.

Replacing the Mower 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 deck belt. Replace the deck belt if any of
these conditions are evident.
1. Disengage the PTO 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. Unlatch and remove the carrier frame cover.
4. Unlatch and remove the belt covers.
5. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt.
35
Figure 49
5. Clutch wire connector
6. Pivot bolt
7. Drive pulley
8. Engine deck
49).
(Figure 49).