Toro Groundsmaster 7210 Service Manual page 142

Disassembling the Transmission (continued)
Hydraulic System: Service and Repairs
g033433
1. Forward relief cartridge
2. Reverse relief cartridge
22. Remove the 8 socket-head screws that attach the center case to the
transmission pump housing.
23. Carefully remove the center case assembly from the transmission pump
housing.
24. Remove the 2 pins from the transmission pump housing bores.
25. Remove and discard the gasket.
26. Remove the bypass valves from the center case.
27. Remove and discard the O-rings and back-up rings from the bypass valves.
The forward and reverse relief cartridges are different. For assembly
purposes, label all the relief cartridges.
28. Remove the forward and reverse relief valve cartridges from the center case
and note the location of the relief cartridge for assembly purposes.
Note: You can identify the reverse relief valve cartridges by the groove in the
hex head (Figure 73).
29. Remove the valve plates from the center case. Mark the positions of the
valve plates so that you can assemble them in the same position.
g033434
1. Hex plug (6 each)
2. Right flushing valve
30. Remove the 6 hex plugs from the center case.
Figure 73
3. Hex head groove
IMPORTANT
Figure 74
3. Left flushing valve
4. Center case
Page 4–82 Groundsmaster 7210
16222SL Rev C