Removal (Fig. 57 or 55)
Before removing any parts from the hydraulic sys-
tem, park the machine on a level surface, lower attach-
ment, and stop the engine.
10. Remove hydraulic fittings and O–rings from the
wheel motor. Put caps or plugs on disconnected tubes
and motor ports to prevent contamination from entering.
1.
NOTE: On the SP 2020/3020, two hex nuts are used
with the top two cap screws when securing the wheel
motor to the frame.
CAUTION
11.
Remove hex nuts, cap screws, spacers, and lock
washers securing the brake bracket and wheel motor to
the frame. Remove motor from the frame.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil. Controls must be operated with the
ignition switch in OFF. Remove key from the igni-
tion switch.
Installation (Fig. 57 or 56)
NOTE: On the SP 2020/3020, two hex nuts are used
with the top two cap screws when securing the wheel
motor to the frame.
WARNING
1.
and brake bracket to the frame with four cap screws,
spacers, lock washers, and hex nuts.
Position wheel motor to the frame. Secure motor
Before jacking up the machine, review and follow
Jacking Instructions in Chapter 1 – Safety.
2.
Remove caps or plugs from the wheel motor. Lubri-
cate new O–rings with clean hydraulic fluid. Install O–
rings and hydraulic fittings to the motor and tighten.
2.
rear tire off the floor.
Jack up rear wheel and use wood blocks to keep the
NOTE: The right wheel motor has an extra hydraulic
tube and fitting attached to it.
3.
drive studs and wheel hub.
Remove lug nuts from drive studs. Pull wheel from
NOTE: On the SP 2020/3020, the hydraulic connec-
tions between the tubes and motor fittings are JIC con-
nections and use no O–rings.
IMPORTANT: DO NOT hit wheel hub with a hammer
during removal. Hammering may cause damage to
the motor.
3.
en tube connections.
Install hydraulic tubes to the hydraulic fittings. Tight-
4.
motor shaft. Release parking brake.
Apply parking brake. Remove lock nut from wheel
NOTE: The brake assembly consists of return spring,
brake cam, brake shoes, backing plate, and retaining
clip.
5.
Remove woodruff key from the wheel motor shaft.
Use a puller to remove brake drum and wheel hub.
6.
brake lever. Separate lever from cam.
Remove retaining clip securing the cam shaft to the
4.
Install brake assembly to the brake bracket by se-
curing the backing plate to the brake bracket with four
cap screws and lock nuts. Secure brake lever to the
brake cam with the retaining clip.
NOTE: The brake assembly consists of return spring,
brake cam, brake shoes, backing plate, and anchor pin.
IMPORTANT: DO NOT hit wheel hub with a hammer
during installation. Hammering may cause damage
to the motor.
7.
removing four lock nuts and cap screws from the back-
ing plate and brake bracket. Do not disassemble.
Remove brake assembly from the brake bracket by
5.
brake drum and hub onto the motor shaft.
Install woodruff key to the wheel motor shaft. Slide
8.
bel all connections for reassembly.
Clean wheel motor and hydraulic connections. La-
6.
from 250 to 400 ft–lb (34.6 to 55.3 kg–m).
Secure lock nut to the wheel motor shaft. Torque nut
NOTE: The right wheel motor has an extra hydraulic
tube and fitting attached to it.
7.
nuts. Torque nuts from 40 to 50 ft–lb (5.5 to 6.9 kg–m).
Install rim to the drive studs. Secure rim with lug
NOTE: On the SP 2020/3020, the hydraulic connec-
tions between the tubes and motor fittings are JIC con-
nections and use no O–rings.
8.
Charge hydraulic system (see Charge Hydraulic
System).
9.
Disconnect hydraulic tubes from the hydraulic fit-
tings. Allow tubes to drain into a suitable container.
Sand Pro 2020/3020/5020
Page 4 – 59
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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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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