Removal (Fig. 39)
Park the machine on a level surface, engage the
parkingbrake,lowerthecuttingdeck(orimplement)and
stop the engine. Remove the key from the ignition
switch.
Installation (Fig. 39)
1.
1. Coatnewo--ringslightly withcleanhydraulicoil.Ifre-
moved, install hydraulic fittings with new o--rings to the
steering cylinder. Make sure to position fittings correctly
in cylinder.
2.
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Read the General Precautions for Removing and
2. If removed, install ball joints to steering cylinder.
3.
Position steering cylinder to rear axle. Secure cylin-
dertoaxlewithjamnuts.Installfirstjamnutontocylinder
balljointthreadsandtorquefrom70to90ft--lb(95to122
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).
CAUTION
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil.
4.
fittings.
Remove caps and plugs from hydraulic hoses and
5.
der.
Correctly connect hydraulic hoses to steering cylin-
3.
Label all hydraulic connections for assembly pur-
poses.Cleanhydraulichoseendspriortodisconnecting
the hoses.
6. Check hydraulic fluid level in reservoir (front axle)
and adjust as required (see Traction Unit Operator’s
Manual).
4.
5.
Disconnect hydraulic hoses from steering cylinder.
Putcaps or plugs on disconnected hoses andfittings
7. Lubricate cylinder grease fittings (see Traction Unit
Operator’s Manual).
to prevent contamination.
6.
der to machine.
Remove four (4) jam nuts that secure steering cylin-
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.
7.
Remove steering cylinder with ball joints from machine.
Separate steering cylinder ball joints from rear axle.
8.
9.
quired. Note orientation of fittings before removing from
steering cylinder.
If needed, remove ball joints from steering cylinder.
Removehydraulic fittingsfromsteeringcylinder ifre-
Groundsmaster 3280--D/3320
Page 5 -- 51
Hydraulic System
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