Replacing The Hydraulic Pump-Drive Belt; Controls System Maintenance; Adjusting The Control-Handle Position - Toro 74901 Operator's Manual

Replacing the Hydraulic
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 belt; refer to Replacing the Mower
Belt (page 50).
4. Raise the machine and support it with jack stands
(Figure 78).
Figure 78
1. Idler pulley
2. Clutch pulley
3. Pump-drive belt
4. Right hand
hydraulic-pump pulley
5. Use a ratchet in the square hole in the idler arm to
remove the idler spring (Figure 78).
6. Unhook the idler spring from the frame (Figure 78).
7. Remove the belt from the hydraulic unit drive pulleys
and the engine pulley.
8. Install the new belt around engine pulley and the 2
drive pulleys.
9. Using a ratchet in the square hole in the idler arm,
install the idler spring to the frame (Figure 78).
10. Install the mower belt; refer to Replacing the Mower
Belt (page 50).
5. Left hand hydraulic-pump
pulley
6. Square hole in the idler
arm
7. Idler spring
Controls System
Maintenance
Adjusting the Control-handle
Position
There are 2 height positions for the control levers—high and
low. Remove the bolts to adjust the height for the operator.
1. Disengage the PTO, move the motion-control levers to
the neutral-locked position, 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. Loosen the bolts and flange nuts installed in the levers
(Figure 79).
4. Align the levers in the front-to-rear position by
bringing the levers together to the neutral position, and
slide them until they are aligned, then tighten the bolts
(Figure 80).
1. Bolt
2. Handle
52
Figure 79
3. Control lever
4. Nut