Toro Z Master 75990, Operator'S Manual

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Replacing the Hydraulic
Pump-Drive Belt
1. Disengage the PTO and engage the parking
brake.
2. Shut off 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 54) .
4. Raise the machine and support it with jack
stands (
Figure 80 ).
g009039
Figure 80
1. Idler pulley
5. Left hand hydraulic pump
pulley
2. Clutch pulley 6. Square hole in idler arm
3. Pump drive belt 7. Idler spring
4. Right hand hydraulic pump
pulley
5. Use a ratchet in the square hole in the idler arm
to remove the idler spring (
Figure 80 ).
6. Unhook the idler spring from the frame ( Figure
80 ).
7. Remove the belt from the hydraulic unit drive
pulleys and the engine pulley
8. Install the new belt around the engine pulley and
the two drive pulleys.
9. Using a ratchet in the square hole in the idler
arm, install the idler spring to the frame (
Figure
80 ).
10. Install the mower belt; refer to Replacing the
Mower Belt (page 54) .
Controls System
Maintenance
Adjusting the Control
Handle Position
There are two 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 engage
the parking brake.
2. Shut off 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 81 ).
4. Align the levers from the front to the rear position
by bring the levers together to the neutral
position and slide them until they are aligned,
then tighten the bolts (
Figure 82 ).
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Figure 81
1. Bolt 3. Control lever
2. Handle 4. Nut
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