Replacing The Hydraulic Pump Drive Belt - Toro 74906 Operator's Manual

1. Position the belt cover
2. Slide belt cover under the
side catches
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 in Maintenance.
4. Raise the machine and support it with jack stands
(Figure 83).
Figure 82
3. Ensure that the tab is
under the metal catch
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
6. Unhook the idler spring from the frame
7. Remove the belt from the hydraulic unit drive pulleys
and the engine pulley
8. Install the new belt around 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
10. Install the mower belt. Refer to Replacing the Mower
Belt.
52
Figure 83
5. Left-hand hydraulic pump
pulley
6. Square hole in idler arm
7. Idler spring
(Figure 83).
(Figure
(Figure 83).
83).