Toro Groundsmaster
3500-D - Page 143

Groundsmaster 3500--D Hydraulic System (Rev. D)Page 4 -- 95
Neutral Arm Assembly
1. Pump assembly
2. Hose
3. Extension spring
4. Pump mount plate
5. Neutral bracket
6. Flange nut
7. Flange head screw
8. Neutral arm
9. Flange bushing
10. Thrust washer
11. 90
o
grease fitting
12. Lock nut
13. Spacer
14. Traction stud
15. Traction control cable
16. Flat washer
17. Ball joint
18. Lock nut
19. Cap screw
20. Flat washer
21. Hub assembly
22. Flange nut
23. Flange head screw
24. Cable support bracket
25. Ball bearing
26. Flat washer
27. Lock nut
28. Cap screw
29. Pump lever
30. Cap screw
31. Flat washer
32. Cap screw
33. Mount
Figure 67
21
6
5
7
9
12
8
10
14
12
13
25
27
20
19
22
7
24
23
17
16
32
16
11
2
9
1
3
18
4
26
29
30
31
33
28
15
Piston Pump Removal (Fig. 66 & 67)
1. Remove traction belt from the pulley (see Replace
Traction Belt).
2. Remove neutral arm assembly from the piston pump
as follows:
CAUTION
The extension spring is under tension and may
cause personal injury during removal. Use cau-
tion when removing spring from the pump lever.
A. Remove extension spring from the cable support
bracket and neutral arm.
B. Disconnect traction control cable from the pump
lever.
C. Remove both flange head screws securing the
neutral bracket to the piston pump. Remove flange
nut and flange head screw securing the neutral
bracket to the pump mount plate.
D. Remove cap screw and flat washer securing the
pump lever to the piston pump trunnion.
E. Separate pump lever from pump trunnion and
neutral bracket from mount plate.
3. Drain hydraulic oil from hydraulic tank (see Change
Hydraulic Fluid in this section).
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