Groundsmaster 4300--D Hydraulic SystemPage 4 -- 95
5. Put caps orplugs on disconnectedhoses and fittings
to prevent contamination.
6. Remove two (2) socket head screws and flat wash-
ers that secure hydraulic motor to the cutting deck (Fig.
84). Remove hydraulic motor and O--ring from deck.
7. Cover top of spindle to prevent debris from entering
spindle. A spindle plug (see Special Tools in this chap-
ter) can be used to cover spindle.
8. If hydraulic fittings are to be removed from motor,
mark fitting orientation to allow correct assembly. Re-
move fittings from motor and discard O --rings.
Installation (Fig. 82)
1. If hydraulic fittings were removed from motor, lubri-
cate new O--rings, position O--rings to fittings and install
fittingsintomotorports(seeHydraulicFittingInstallation
in the General Information section ofthis chapter). Make
sure that fittings are orientated correctly.
2. Remove cover from top of spindle that was placed to
prevent debris from entering spindle.
3. Make sure that O--ring is positioned to top of spindle
housing. Secure hydraulic motor to thecutting deck with
two (2) socket head screws and flat washers (Fig. 84).
4. Remove caps or plugs from fittings and hoses.
IMPORTANT: When installing the hydraulic hoses,
make sure that hydraulic hosesare straight (not twisted)
before tightening the hoses to the motor fittings.
5. Lubricate and install new O--rings on motor fittings.
Correctly connect hydraulic hoses to the motor using la-
bels placed during removal procedure (see Hydraulic
Hose and Tube Installation in the General Information
section of this chapter).
6. Check oil level in hydraulic reservoir and add correct
oil if necessary.
7. Follow Hydraulic System Start--up procedures (see
Hydraulic System Start--up in this section).
Figure 83
FRONT
#4 #1 #5
#3#2
GROUNDSMASTER
4300--D CUTTING
DECK LOCATIONS
1. Socket head screw
2. Flat washer
3. Hydraulic motor
4. Cutting deck
Figure 84
2
3
1
4
1. Flow IN
2. Flow OUT
3. Case drain
Figure 85
ROTATION
2
1
DIRECTION
3
Hydraulic
System
