Toro 72923 - Replacing the Hydraulic Pump-Drive Belt

9. Rotate and ensure the belt-guide tab hits against
the pivot hub ( Figure 102 ).
10. Using the ratchet in the square hole, install
the belt around the spring-loaded idler pulley
( Figure 102 ). Seat the spring ends in the anchor
grooves.
1 1. Install the belt covers ( Figure 103 ).
g027730
Figure 103
Replacing the Hydraulic
Pump-Drive Belt
1. Park the machine on a level surface, disengage
the blade-control switch (PT O), and engage the
parking brake.
2. Shut of f 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 for Side-Discharge Mower Decks
( page 67 ) or Replacing the Mower Belt for
Rear-Discharge Mower Decks ( page 68 ) .
4. Raise the machine and support it with jack
stands ( Figure 104 ).
g009039
Figure 104
1. Idler pulley
5. Left hydraulic-pump pulley
2. Clutch pulley 6. Square hole in the idler
arm
3. Pump-drive belt 7. Idler spring
4. Right hydraulic-pump
pulley
5. Use a ratchet in the square hole in the idler arm
to remove the idler spring ( Figure 104 ).
6. Unhook the idler spring from the frame ( Figure
104 ).
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
104 ).
10. Install the mower belt; refer to Replacing the
Mower Belt for Side-Discharge Mower Decks
( page 67 ) or Replacing the Mower Belt for
Rear-Discharge Mower Decks ( page 68 ) .
70