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Groundsmaster 4000--D/4010--D Hydraulic SystemPage 4 -- 93
Removal (Fig. 72)
1. Park machine on a level surface, lower cutting
decks, stop engine, apply parking brake and remove
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.
NOTE: Toease installation, label the hydraulic hoses to
show their correct position on the wheel motor.
3. Disconnect hydraulic hoses and tubes from wheel
motor. Put caps or plugs on motor ports and hose open-
ings to prevent contamination.
IMPORTANT: Before loosening fasteners, support
wheel motor to prevent motorfrom falling during re-
moval.
4. Remove wheel motor using Figure 72 as a guide.
5. 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. 72)
IMPORTANT: If 90
o
fitting (item 10) was removed
from backplate of RH wheel motor, make sure that
straight fittings (item 14) are installed and correctly
torqued before installing 90
o
fitting.
1. If fittings were removed from motor, lubricate and
place new O--rings onto fittings. Install fittings into port
openingsusingmarks madeduringthe removalprocess
to properly orientate fittings. Tighten fittings (see Hy-
draulic Fitting Installation in the General Information
section of this chapter).
2. Install O--ring (item 8) onto motor. Position wheel
motor to brake assembly making surethatarrows on the
side of motor case point upward.
3. Align splines on motor shaft and splined brake shaft.
Slide motor into brake assembly.
4. Secure motor to brake assembly with cap screws
and flat washers. Tightencap screwsfrom 75 to85 ft--lb
(101 to 115 N--m).
5. Remove plugs from wheel motor ports and hose
openings. Using labels placed during motor removal,
correctly attach hydraulic hoses and tubes to wheel mo-
tor (see Hydraulic Hose and Tube Installation in the
General Information section of this chapter).
6. Fill reservoir with hydraulic fluid as required.
7. Properly fill hydraulic system (see Charge Hydraulic
System in this section).
Hydraulic
System