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Groundsmaster 4500--D/4700--DHydraulic System Page 4 -- 84
Piston (Traction) Pump
Figure 68
FRONT
RIGHT
1. Piston pump assembly
2. Flat washer (4 used)
3. Gear pump assembly
4. 90
o
hydraulic fitting (2 used)
5. 90
o
hydraulic fitting (2 used)
6. 90
o
hydraulic fitting
7. O--ring
8. Hydraulic tee fitting
9. 90
o
hydraulic fitting
10. 45
o
hydraulic fitting
11. Straight fitting
12. O--ring
13. Cap screw (2 used)
14. Cap screw (2 used)
15. O--ring
16. 45
o
hydraulic fitting (2 used)
17. O--ring
18. O--ring
19. Hydraulic adapter
20. O--ring
21. Engine flywheel plate
7
17
18
2
13
10
1
14
6
8
9
5
3
4
11
15
2
16
19
7
7
7
12
12
20
21
Removal (Fig. 68)
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.
3. Label wire harness connectors that attach to the two
(2) solenoid coils on left side of piston pump (Fig. 69).
Disconnect harness connectors from solenoid coils on
piston pump.
4. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.