Replacing The Pump Drive Belt - Toro 39488 Operator's Manual

Use Figure 51 for the idler position options.
1. PTO drive belt idler pulley
2. PTO drive Belt
3. Idler spring

Replacing the Pump Drive 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 PTO drive belt. Refer to Replacing the
PTO Drive Belt in theBelt Maintenance (page 37).
4. Raise the machine and support it with jack stands.
5. Disconnect the clutch wire connector from the wire
harness.
6. Disconnect the clutch retainer from the engine deck
(Figure 52).
Figure 51
4. Most tension for worn belts
5. Medium tension for normal
belt conditions
6. Least tension for new belts
1. Hydraulic pumps
2. Idler pulley
3. Clutch retainer
4. Tension spring
7. Unhook the idler spring from the frame (Figure 52).
8. Install the new belt around clutch and the two drive
pulleys.
9. Install the idler spring between idler arm and frame
bracket (Figure 52).
10. Install the clutch retainer to the engine deck
(Figure 52).
11. Connect the clutch wire connector to the wire
harness.
12. Install the PTO drive belt.
39
Figure 52
5. Clutch wire connector
6. Pivot bolt
7. Drive pulley
8. Pump drive belt