Replacing The Pump Drive Belt - Toro GrandStand 74534 Operator's Manual

5. Remove the spring from the anchor post on the idler
pulley arm (Figure 64).
6. Remove the worn mower belt (Figure 64).
7. Install the new mower belt around the deck pulleys,
clutch pulley and idler pulley (Figure 64 ).
8. Install the spring onto the anchor post (Figure 64 ).
9. Install the right mower belt. Refer to Replacing the
Right Mower Belt.
10. Install the belt covers onto the cutting unit and
secure the latches.
1. Belt
2. Spring loaded idler pulley

Replacing the Pump Drive 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. Remove the mower deck belt from the clutch on
36in mower decks or remove the left mower belt
from the clutch for 40in mower decks. Refer to
Replacing the Mower Deck Belts.
4. Tilt the machine on it's back. Refer to
Pre-Maintenance at the beginning of the
Maintenance Section.
5. Unhook the idler spring from the frame (Figure 67).
6. Install the new belt around engine pump drive pulley
and the two pump pulleys.
7. Install the idler spring to the frame (Figure 67).
Figure 66
3. Spring
1. Hydraulic pumps
2. Idler pulley
3. Clutch pulley
8. Lower the machine to the operating position.
Refer to PreMaintenance at the beginning of the
Maintenance Section.
9. Install the mower deck belt to the clutch on 36in
mower decks or install the left mower belt install the
clutch for 40in mower decks. Refer to Replacing the
Mower Deck Belts.
46
Figure 67
4. Clutch retainer
5. Pump drive belt
6. Pump drive pulley