Greensmaster 3300/3400 Hydraulic SystemPage 5 -- 101
Removal (Fig. 72)
1. Parkmachineonalevelsurface,engagetheparking
brake, lower the cutting units and stop the engine. Re-
move key from the ignition switch.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components in
this section.
2. Operate all hydraulic controls to relieve hydraulic
system pressure.
3. Remove steering wheel from power steering valve:
A. Remove screw and steering wheel cap from
steering wheel.
B. Remove hex nut and flat washer that secure
steering wheel to power steering valve shaft.
C. Use a suitable puller to remove steering wheel
from power steering valve.
4. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
5. Loosenand removefour (4)flangeheadscrewsthat
secure power steering valve to steering mount.
6. Lowerpowersteeringvalve(withhydraulichosesat-
tached) from steering mount.
7. Label all hydraulic hoses connected to the power
steeringvalveforassemblypurposes.Thoroughlyclean
hydraulic hose ends.
8. Disconnecthydraulichosesfrom fittingson thepow-
er steering valve. Allow hoses to drain into a suitable
container.Caporplughosesandcontrolvalvefittingsto
prevent contamination.
9. Remove steering valve from machine.
10.If necessary, remove hydraulic fittings and O--rings
from power steering valve. Discard removed O--rings.
Installation (Fig. 72)
1. If fittings were removed from power steering valve,
lubricate and place new O--rings onto fittings. Install fit-
tings into steering valve openings. Tighten fittings (see
Hydraulic Fitting Installation in the General Information
section of this chapter).
2. Position power steering valve to steering mount.
3. Usinglabelsplacedduringcontrolvalveremoval,lu-
bricate new O--rings and connect hydraulic hoses to
power steering valve. Tighten hose connections (see
Hydraulic Hose and Tube Installation in the General In-
formation section of this chapter).
4. Slide power steering v alve (with hydraulic hoses at-
tached) to steering mount. Secure steering valve to
mount with four (4) flange head screws.
5. Install steering wheel to power steering valve:
A. Apply antiseize lubricant to splines of power
steering valve shafttaking care tokeep antiseize lu-
bricant from tapered surface of shaft. Slide steering
wheel onto steering v alve.
B. Securesteeringwheeltosteeringvalveshaftwith
flatwasherandhexnut.Torquenutfrom 20to 26ft--
lb(28to35N--m).
C. Install steering wheel cap to steering wheel.
6. Check fluid levelinhydraulic oil reservoirandadjust
as required.
7. After assembly is completed, rotate steering wheel
in both directions to verify that there are no leaks from
hydraulic connections.
1. T port
2. R port
3. E/Ls port
4. P port
5. L port
Figure 73
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4
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Hydraulic
System
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