Replacing The Mower Belt - Toro 30074 Operator's Manual

4. Raise the front of the machine and hold with jack
stands.
5. Disconnect clutch wire connector from wire harness.
6. Disconnect clutch retainer from the engine deck
(Figure 49).
1. Transmission belt
2. Idler pulley
3. Clutch retainer
4. Tension spring
7. Unhook tension spring from side of frame
(Figure 49).
8. Loosen pivot bolt enough to remove traction belt
from the drive pulley and clutch.
9. Install new belt around clutch and drive pulley.
10. Torque pivot bolt to 35-40 ft-lb (47-54 N-m). Install
tension spring between idler arm and frame bracket
(Figure 49).
11. Install clutch retainer to the engine deck (Figure 49).
12. Connect clutch wire connector to wire harness.
13. Install 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.
Figure 49
5. Clutch wire connector
6. Pivot bolt
7. Drive pulley
8. Engine deck
4. Unlatch and remove the belt covers.
5. Remove the PTO drive belt. Refer to Replacing the
PTO Drive Belt.
6. Disconnect the idler arm spring to relieve tension on
the idler arm and idler pulley, then remove the worn
mower belt (Figure 50 or Figure 51).
7. Install the new mower belt around the two outside
spindle pulleys, the idler pulley, and in the lower
groove of the double spindle pulley (Figure 50 or
Figure 51).
8. Connect the idler arm spring (Figure 50 or Figure 51).
9. Install the PTO drive belt. Refer to Replacing the
PTO Drive Belt.
10. Adjust the belt guide an 1/8 inch (3 mm) from the
belt (Figure 50 or Figure 51).
11. Install the belt covers onto the cutting unit and
secure the latches.
12. Install the carrier frame cover onto the cutting unit
and secure the latches.
40 inch, 48 inch, and 52 inch Mower Deck shown
1. Outside pulley
2. PTO drive belt
3. Idler arm spring
35
g014676
Figure 50
4. Mower deck belt
5. Belt guide
6. Center spindle pulley