Removal (Fig. 69)
Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
Installation (Fig. 69)
1.
1. If fittings were removed from axle motor, lubricate
and place new O--rings onto fittings. Install fittings into
motor ports using marks made during the removal pro-
cess to properly orientate fittings. Tighten fittings (see
Hydraulic Fitting Installation in the General Information
section of this chapter).
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 pinion gear to axle motor.
3.
To prevent contamination of hydraulic system during
axle motor removal, thoroughly clean exterior of 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.
Disconnect hydraulic lines from motor. Put caps or
plugs on lines and fittings to prevent contamination. La-
bel the hydraulic hoses to show their correct position on
the axle motor for assembly purposes.
4. Secure motor to axle with cap screws and flat wash-
ers.
IMPORTANT: Support axle motor to prevent motor
from falling during removal.
5. Remove plugs from lines and fittings. Attach hydrau-
lic lines to axle motor (see Hydraulic Hose and Tube
Installation in the General Information section of this
chapter).
5.
Remove motor using Figure 69 as a guide.
6.
If hydraulic fittings are to be removed from axle mo-
tor, mark fitting orientation to allow correct assembly.
Remove fittings from motor and discard O--rings.
6.
quired.
Fill hydraulic reservoir with hydraulic fluid as re-
7.
hoses and fittings do not contact anything.
After assembly is completed, verify that hydraulic
Groundsmaster 4500--D/4700--D
Page 4 -- 87
Hydraulic System
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