Groundsmaster 4100--D/4110--D Hydraulic SystemPage 4 -- 127
Cutting Deck Motor
Removal
1. Park machine on a level surface,lowercuttingdeck,
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. Topreventcontaminationofhydraulicsystemduring
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 motor to motor mount (Fig. 89).
6. Carefully remove hydraulic motor from cutting deck
takingcarenottodamagespiderhubattachedtomotor.
Locate and remove spider and mounting shim(s) (if
present) from the deck.
7. If required, remove spider hub from motor shaft.
Straighten tab washer and remove nut, spider and
woodruff key.
Installation
1. If spider hub was removed from motor s haft, 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 45 N--m). Bend
small tab of washer into keyway and large tab against
nut.
2. Check for properclearancebetweenspider huband
spindlepulley.Install motorto cuttingdeck withoutplac-
ing the spider in the spindle pulley. The clearance be-
tween hub and pulley valleys should be from 0.830” to
0.930” (21.1 to 23.6 mm). If required, use mounting
shims between motor and motor mount to adjust clea-
rance.
3. Position spider in spindle pulley. Place mounting
shim(s) (if required) on deck. Carefully install hydraulic
motortothe cutting deck takingcareto not damage spi-
der hub attached to motor.
4. Securemotortocuttingdeckwithtwo(2)flangehead
screws (Fig. 89).
IMPORTANT: For proper hydraulic hose routing,
make sure cutting deck is fully lowered before
installing hoses to deck motor.
5. Removecapsorplugsfromfittingsandhoses.Using
labels placed during motor removal, properly connect
hydraulichosestodeck motor (seeHydraulicHoseand
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. Flange head screw
3. Inlet hose
4. Return hose
5. Case drain hose
Figure 89
1
2
4
3
5
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. Shim (if required)
12. Spider hub
13. Tab washer
14. Nut
15. Spider
16. Cutting deck
Figure 90
(37to45N--m)
27 to 33 ft--lb
16
9
1
10
11
4
2
6
8
7
12
13
15
14
5
2
4
3
Hydraulic
System
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