Piston (Traction) Pump - Toro Groundsmaster 4500-D Series Service Manual

Piston (Traction) Pump

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1. Piston pump assembly
2. Flat washer (4 used)
3. Gear pump assembly
4. 90º hydraulic fitting (2 used)
5. 90º hydraulic fitting (2 used)
6. 90º hydraulic fitting
7. O-ring
Removal (Figure 101)
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
8. Hydraulic tee fitting
9. 90º hydraulic fitting
10. 45º hydraulic fitting
11. Straight fitting
12. O-ring
13. Cap screw (2 used)
14. Cap screw (2 used)
1. Park machine on a level surface, lower cutting decks, stop engine, engage
parking brake and remove key from the ignition switch.
2. To prevent contamination of hydraulic system during removal, thoroughly
clean exterior of pump assembly.
Figure 101
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Page 5–103
O-ring
45º hydraulic fitting (2 used)
O-ring
O-ring
Hydraulic adapter
O-ring
Engine flywheel plate
Hydraulic System: Service and Repairs