Toro Groundsmaster 3280-D Service Manual page 192

Removing the Front Axle Drive Motor
Installing the Front Axle Drive Motor
Hydraulic System: Service and Repairs
Before opening the hydraulic system, operate all the hydraulic
controls to release system pressure and avoid injury from the
pressurized hydraulic fluid; refer to
Hydraulic System (page
1. Park the machine on a level surface, lower the cutting deck, shut off the
engine, set the parking brake, and remove the key from the key switch.
2. Block the wheels with chocks to prevent the machine from moving.
3. Read the General Precautions for Removing and Installing the Hydraulic
System Components (page
4. Clean the hydraulic tube ends and fittings on the hydraulic motor to prevent
contaminants from entering into the hydraulic system.
5. For assembly purposes, label all the hydraulic connections at the hydraulic
motor.
6. Loosen and remove the hydraulic tubes from the fittings on the hydraulic
motor. Allow the tubes to drain into a suitable container.
7. Install clean caps or plugs on the hydraulic tubes and fittings to prevent
system contamination.
8. On 4-wheel drive machines, remove the rear axle driveshaft; refer to
Removing the Rear Axle Driveshaft (4-Wheel Drive) (page
9. Remove the 2 flange-head screws (item 6 in
hydraulic motor to the front axle; remove the motor from the machine.
10. Remove and discard the O-ring (item 8 in
11. If the hydraulic fittings are to be removed from the hydraulic motor, mark
the fitting orientation for assembly purposes. Remove the fittings from the
hydraulic motor and discard the O-rings from the fittings.
1. If the hydraulic fittings were removed from the hydraulic motor, lubricate and
install new O-rings to the fittings. To properly align and install the fittings into
the hydraulic motor ports, use the marks that you made during the removal
process; refer to Installing the Hydraulic Fittings (SAE Straight Thread
O-Ring Fitting into the Component Port) (page
2. Position the new O-ring (item 8 in
the motor into the front axle with the 2 flange-head screws.
3. On 4-wheel drive machines, install the rear axle driveshaft; refer to
the Rear Axle Driveshaft (4-Wheel Drive) (page
4. Remove the caps and plugs from the hydraulic tubes and fittings.
5. Lubricate and install new O-rings to the fittings on the hydraulic motor. Use
the labels that you attached during the removal process to correctly connect
the hydraulic tubes to the motor fittings; refer to
and Tube (O-Ring Face Seal Fitting) (page
6. Check the hydraulic-fluid level in the hydraulic reservoir (front axle) and add
correct quantity of fluid if necessary; refer to the Operator's Manual.
7. Operate the machine functions slowly until air is out of system; refer to
Charging the Hydraulic System (page
CAUTION
Releasing Pressure from the
5–6).
5–77).
Figure
Figure 90) to the hydraulic motor and install
5–85).
Page 5–108
8–43).
Figure 90) that secure the
90) from the motor.
5–11).
8–44).
Installing the Hydraulic Hose
5–9).
Groundsmaster ®
05138SL Rev B
Installing
3280-D/3320