Toro 30072, Operator'S Manual, Page: 32 / 44

Replacing the Transmission
Belt
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. Raise the front of the machine and hold it with jack
stands.
4. Check the belt for wear.
5. Disconnect clutch wire connector from wire harness.
6. Remove mower belt. Refer to Replacing the Mower
Belt.
7. Remove the left front engine mounting bolt which
secures the clutch retainer to the frame.
8. Unhook the clutch retainer from the clutch and
remove the retainer (Figure 38).
Figure 38
1. Traction belt 3. Clutch retainer
2. Idler pulley 4. Adjusting nut
9. Loosen the idler mounting bolt enough to move the
idler pulley and remove the traction belt from the
drive pulley and clutch (Figure 38).
10. Install new belt around clutch and drive pulley.
11. Hook the clutch retainer into the clutch and secure
it to the frame with the engine mounting bolt
(Figure 38).
12. Torque pivot bolt to 170-220 in-lb (19-24 N-m)
(Figure 38).
13. Connect the clutch wire connector to wire harness.
14. Install mower drive belt.
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 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. Remove the knobs/rubber washers holding the
mower cover and remove the mower cover.
Figure 39
1. Mower cover 4. Drive Belt
2. Belt guide 5. Traction unit pulley
3. Flange head bolt 6. Spindle pulley
4. Remove the two flange-head bolts holding the belt
guide to the top of the mower and remove the belt
guide (Figure 39).
5. Loosen the jam nuts on the adjusting shafts to relieve
the tension on the drive belt, then remove the worn
drive belt from the pulleys (Figure 40).
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