Gear Pump - Toro Groundsmaster 4500-D Series Service Manual

Gear 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 96)
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. Gain access to gear pump from below the machine.
3. Drain the hydraulic reservoir into a suitable container (see
Reservoir (page 5–176)).
4. To prevent contamination of hydraulic system during gear pump removal,
thoroughly clean exterior of gear pump, fittings and ends of hydraulic lines.
Figure 96
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Page 5–97
O-ring
45º hydraulic fitting (2 used)
O-ring
O-ring
Hydraulic adapter
O-ring
Engine flywheel plate
Hydraulic
Hydraulic System: Service and Repairs