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Groundsmaster 4100--D Hydraulic SystemPage 4 -- 79
Removal (Fig. 56)
1. Park machine on a level surface, lower cutting deck,
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: To ease installation, tag the hydraulic hoses to
show their correct position on the axle motor.
3. Disconnect hydraulic hoses from motor. Put caps or
plugs on motor ports and hose openings to prevent con-
tamination.
IMPORTANT: Support axle motor to prevent motor
from falling during removal.
4. Remove motor from rear axle using Figure 56 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. 56)
1. If fittings were removed from motor, lubricate and
place new O--rings onto fittings. Install fittings into port
openingsusingmarksmadeduringtheremovalprocess
to properly orientate fittings. Tighten fittings (see Hy-
draulic Fitting Installation in the General Information
section of this chapter).
2. If removed, install pinion gear to axle motor.
3. Install O--ring onto motor. Position motor to rear axle
assembly making sure that arrows on the side of motor
case point upward. Align gear teeth and slide motor into
place.
4. Secure motor to axle with cap screws and flat wash-
ers. Torque screws from 59 to 73 ft--lb (80 to 99 N--m).
5. Remove plugs from motor ports and hose openings.
Attach hydraulic hoses to axle motor.
6. Fill reservoir with hydraulic fluid as required.
7. After assembly is completed, verify that hydraulic
hoses and fittings do not contact anything.
Hydraulic
System