Replacing The Pump-Drive Belt; Adjusting The Belt Guides - Toro 74312 Operator's Manual

Replacing the Pump-Drive
Belt
1. Stop the machine and move the speed-control
lever to the N
EUTRAL
2. Disengage the PTO, engage the parking brake,
shut off the engine, and wait for all moving parts
to stop.
3. Remove the PTO Belts; refer to
PTO Belts (page
4. Pull the spring idler or remove the spring to
relieve the tension of the pump-drive belt.
5. Remove the old belt.
6. Route the new belt onto the sheaves as shown
in the decal located on the back of the left drive
shield (Figure 51).
Figure 51
1. Pump-drive belt
2. Pump
3. Idler
7. Install the PTO belts; refer to
Belts (page 47).
position.
Replacing the
47).
4. Pump
5. Idler
6. Engine
Replacing the PTO

Adjusting the Belt Guides

1. Stop the machine and move the speed-control
lever to the N
2. Disengage the PTO, engage the parking brake,
shut off the engine, and wait for all moving parts
to stop.
3. With the engine off, engage the PTO lever.
4. Adjust the belt guides as shown in
1. 3 mm (1/8 inch)
2. 11 mm (7/16 inch)
3. 3 mm (1/8 inch) clearance
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48
position.
EUTRAL
Figure
Figure 52
4. Rotate the wireform guide
to the center belts in the
guide.
5. 6 mm (1/4 inch)
6. 8 mm (5/16 inch)
52.
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