Toro Groundsmaster 3280-D Service Manual page 97

Removal (Fig. 39)
1. Park the machine on a level surface, engage the
parking brake, lower the cutting deck (or implement) and
stop the engine. Remove the key from the ignition
switch.
2. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
CAUTION
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil.
3. Label all hydraulic connections for assembly pur-
poses. Clean hydraulic hose ends prior to disconnecting
the hoses.
4. Disconnect hydraulic hoses from steering cylinder.
5. Put caps or plugs on disconnected hoses and fittings
to prevent contamination.
6. Remove four (4) jam nuts that secure steering cylin-
der to machine.
7. Separate steering cylinder ball joints from rear axle.
Remove steering cylinder with ball joints from machine.
8. If needed, remove ball joints from steering cylinder.
9. Remove hydraulic fittings from steering cylinder if re-
quired. Note orientation of fittings before removing from
steering cylinder.
Groundsmaster 3280--D/3320
Installation (Fig. 39)
1. Coat new o--rings lightly with clean hydraulic oil. If re-
moved, install hydraulic fittings with new o--rings to the
steering cylinder. Make sure to position fittings correctly
in cylinder.
2. If removed, install ball joints to steering cylinder.
3. Position steering cylinder to rear axle. Secure cylin-
der to axle with jam nuts. Install first jam nut onto cylinder
ball joint threads and torque from 70 to 90 ft--lb (95 to 122
N--m). Then, while retaining first jam nut with wrench,
install and torque second jam nut from 70 to 90 ft--lb (95
to 122 N--m).
4. Remove caps and plugs from hydraulic hoses and
fittings.
5. Correctly connect hydraulic hoses to steering cylin-
der.
6. Check hydraulic fluid level in reservoir (front axle)
and adjust as required (see Traction Unit Operator's
Manual).
7. Lubricate cylinder grease fittings (see Traction Unit
Operator's Manual).
8. Follow Hydraulic System Start--up procedures.
9. Check that steering cylinder does not contact the
axle or frame as cylinder moves from fully retracted to
fully extended.
Page 5 - - 51 Hydraulic System