Service Manual
Removal (Fig. 16)
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1. Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, engage parking
brake, lower cutting units, and stop engine.
CAUTION
Use caution when removing the lock nut
from the pin. The extension spring is un-
der tension and may cause personal inju-
ry during removal.
3
2
4
5
6
Note: The neutral system assembly can be remove
from the hydrostat without complete disassembly.
Figure 17
1. Lock nut
4. Spring bracket
2. Pin
5. Jam nut
3. Extension spring
6. Pump plate
2. Remove lock nut securing the pin and extension
spring to the spring bracket. Do not unscrew jam nut
4
3
from the pin. Release pin from the bracket (Fig. 17).
3. Disconnect extension spring from the neutral arm.
5
6
1
Remove cap screw and pivot washer from camplate
shaft of hydrostat (Fig. 18).
4. Remove both cap screws securing the cable sup-
2
port of the neutral system assembly to the hydrostat. Lift
and secure neutral system assembly away from the hy-
drostat (Fig. 19).
5. Clean gear pump, hydrostat, hydraulic fittings, and
hose assembly connection. Label all hose
connections
for reassembly purposes.
Figure 18
CAUTION
Operate all hydraulic controls to relieve sys-
tem pressure and avoid injury from pressur-
ized hydraulic oil. Controls must be oper-
ated with the ignition switch in RUN and the
when pressure has been relieved. Remove
key from the ignition switch.
6.
7. Remove both socket head screws (20) and flat
washers (19) from the gear pump (28) flange and hy-
1.
2.
3.
4.
5. Hydrostat
6.
1
2
1
engine OFF. Return ignition switch to OFF
Clamp pump inlet hose (24) to prevent draining the
hydraulic reservoir.
Extension spring
Neutral arm
Cap screw
Pivot washer
Cable support
drostat (16).
Figure 19
8. Separate gear pump (28) from the hydrostat (16).
1. Cap screw 3. Hydrostat
2. Cable support
9. Plug suction port at the end of the gear pump to pre -
vent possible leakage of hydraulic fluid (Fig. 20).
10. Remove O–ring (2) from either the gear pump (28)
or hydrostat (16).
Greensmaster 3200/3200–D Page 5 – 43 Hydraulic System
Hydraulic
System
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