5.
Disconnect air hose from the air cleaner. Remove
lower shroud from the cooler mount to prevent damage
to the fan when removing the hydrostat.
1
2
6.
Disconnect control rod from pump lever and wires
3
from the neutral switch (Fig. 36).
4
7.
Loosen both set screws (11) on the pump hub (19)
enough to allow the hydrostat shaft to be released.
8.
Clamp hydraulic hose (35) and hydraulic hose (25)
to prevent draining of the tank. Disconnect all six hy-
draulic hoses from fittings on the hydrostat. Allow hoses
to drain into a suitable container.
Figure 34
1.
2.
Blue wire (magneto)
3.
Voltage regulator
Red/white wire
Blue wire (voltage reg.)
4.
9.
Remove self tapping screw securing R–clamp and
fuel hose to the frame (Fig. 37)
CAUTION
1
One person should operate the chain fall or hoist
while the other person guides the engine from
the frame.
2
3
IMPORTANT: When moving the engine and hydros-
tat from the frame, make sure not the damage the
cooling fan, wires, hoses, and cables.
5
4
10.
Reposition hydrostat and engine as follows:
Figure 35
A. Position a jack or chain fall to the engine base
(Fig. 39).
1.
2.
3.
Positive cable (solenoid)
4.
5.
Battery cable (negative)
Ground wire (frame)
Starter
Lock nut and cap screw
B. Remove lock nuts, flat washers, and cap screws
securing both front engine mounts to the frame
(Fig. 38).
4
2
C. Remove cap screws and flat washers securing
the engine support the the frame (Fig. 39).
3
D. Lower and pull back hydrostat and engine from
the cooler mount so the cooling fan is clear of the
mount.
5
11.
Separate hydrostat from the engine base by remov-
1
ing both lock nuts and socket head screws.
Figure 36
4.
5.
12.
woodruff key (9) from the hydrostat shaft.
Remove fan hub (27) with cooling fan (28) and
1.
2.
3.
Control rod
Pump lever
Wires
Neutral switch
Pump plate
13.
Match mark position of all hydraulic fittings on the
hydrostat. Remove all hydraulic fittings and O–rings
from the hydrostat. Plug or cap all ports to prevent con-
tamination.
Installation (Fig. 33)
1.
Make sure hydraulic hoses, fittings, and tubes are
cleaned thoroughly.
14.
Remove cap screw and lock nut securing the pump
2.
screws. Secure pump lever to the hydrostat trunnion
with cap screw and lock nut (Fig. 36).
Securing pump plate to the hydrostat with three cap
lever to the hydrostat trunnion. Remove three cap
screws securing the pump plate to the hydrostat while
pulling the pump plate from the hydrostat (Fig. 36).
Sand Pro 2020/3020/5020
Page 4 – 45
Hydraulic System (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 3020, Toro 5020, Toro 98957SL.Toro 2020 |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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