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Groundsmaster 4100--D/4110--D Hydraulic SystemPage 4 -- 119
Cutting Deck Motor
Removal (Fig. 90)
1. Park machine on a level surface, lower cutting deck,
stop engine, engage 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 this section.
3. To prevent contamination of hydraulic system during
motor removal, thoroughly clean exterior of motor and
fittings.
4. Disconnect hydraulic lines from deck motor. Put
caps or plugs on fittings and hoses to prevent contami-
nation. Label hydraulic lines for proper installation.
5. Remove two (2) flange head screws that secure hy-
draulic m otor to motor mount (Fig. 90).
6. Carefully remove hydraulic motor from cutting deck
taking care not to damage spider hub attached to motor.
Locate a nd remove spider from the deck.
7. If required, remove spider hub from motor shaft.
Straighten tab washer and remove nut, spider and
woodruff key.
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. 90)
1. If fittings were removed from motor, lubricate and
place new O--rings onto fittings. Install fittings into port
openings using marks made during the removal process
to properly orientate fittings. Tighten fittings (see Hy-
draulic Fitting Installation in the General Information
section of this chapter).
2. If spider hub was removed from motor shaft, thor-
oughly clean tapered surfaces of hub and shaft. Install
spider hub to motor shaft with tab washer and nut.
Torque nut from 27 to 33 ft--lb (37 to 44 N--m).Bend
small tab of washer into keyway and large tab against
nut.
3. Position spider in spindle pulley and carefully install
hydraulic motor to the cutting deck taking care to not
damage spider hub attached to motor.
4. Secure motor to cutting deck with two(2) flange head
screws.
IMPORTANT: For proper hydraulic hose routing,
make sure cutting deck is fully lowered before
installing ho ses to deck motor.
5. Remove caps or plugs from fittings and hoses. Using
labels placed during motor removal, properly connect
hydraulic hoses to deck motor (see Hydraulic Hose and
Tube Installation in the General Information section of
this chapter).
6. After assembly is completed, verify that hydraulic
hoses and fittings are not contacted by moving compo-
nents through full range of deck movement.
1. Cutting deck motor
2. O--ring
3. Hydraulic adapter
4. O--ring
5. Flange head screw (2)
6. O--ring
7. 90
o
hydraulic fitting
8. O--ring
9. 90
o
hydraulic fitting
10. Woodruff key
11. Spider hub
12. Tab washer
13. Nut
14. Spider
15. Cutting deck
Figure 90
(37 to 44 N--m)
27 to 33 ft--lb
9
1
10
11
4
2
6
8
7
12
13
15
14
5
2
4
3
Hydraulic
System