Toro Groundmaster Series Service Manual page 171

Rear Wheel Motors (4WD models) (continued)
Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A
2. Use a wheel hub puller for a 108 mm (4.25 inch) bolt circle and remove the
wheel hub and woodruff key.
3. Read and adhere to the information provided in
Removing and Installing the Hydraulic System Components (page
4. Clean the hydraulic hose ends and fittings on the wheel motor to prevent
contaminants from entering into the hydraulic system.
5. Label and remove the hydraulic hoses from the fittings on the wheel motor.
Allow the hoses to drain into a suitable container.
6. Install clean caps and plugs on the hydraulic hoses and fittings to prevent
system contamination.
7. Record the wheel motor location (mark the wheel motor) prior to removal.
8. Remove the fasteners and wheel motor from the machine.
9. If the hydraulic fittings are to be removed from the wheel motor, mark the
fitting orientation for assembly purposes. Remove the fittings from the wheel
motor and discard the O-rings from the fittings.
Installing the Rear Wheel Motors
Because of the internal differences in the wheel motors, do not
interchange the wheel motors on the machine (e.g., do not put the
right motor on the left side of the machine). If necessary, use the
traction unit Parts Catalog and part number on the wheel motor to
identify the right and left motors. The left side wheel motors are
identified with a yellow dot on the motor housing near the B port.
Refer to Figure 59 for this procedure.
1. If the hydraulic fittings were removed from the wheel motor, lubricate and
install new O-rings to the fittings. Align and install the fittings into the wheel
motor ports; refer to
O-Ring Fittings) (page
2. Fit the wheel motor to the spindle and install the previously removed
fasteners. Tighten the cap screws from 108 to 122 N·m (80 to 100 ft-lb).
3. Remove the caps and plugs then connect the hydraulic hoses to the wheel
motor fittings; refer to
Seal Fitting) (page
4. Clean the tapers of the wheel hub and wheel motor shaft and install the
woodruff key and wheel hub. Tighten the wheel hub lock nut from 286 to
352 N·m (211 to 260 ft-lb).
5. Install the rear wheel; refer to
6. Charge the hydraulic system; refer to
5–62).
IMPORTANT
Installing the Hydraulic Fittings (SAE Straight Thread
5–9).
Installing Hydraulic Hoses and Tubes (O-Ring Face
5–7).
Removing and Installing the Wheels (page
Charging the Hydraulic System (page
Page 5–85
General Precautions for
5–52).
Hydraulic System: Service and Repairs
7–5).