Cutting Deck Motor
Removal
1
5
1.
Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake, and remove
key from the ignition switch.
4
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
3.
caps or plugs on fittings and hoses to prevent contami-
nation. Tag hydraulic lines for proper reassembly.
Disconnect hydraulic lines from deck motor. Put
2
3
4.
Removetwoflangeheadscrewsthatsecurehydrau-
lic motor to motor mount (Fig. 66).
Figure 66
4.
5.
5.
Carefully remove hydraulic motor from cutting deck
1.
2.
3.
Cutting deck motor
Flange head screw
Inlet hose
Return hose
Case drain hose
taking care not to damage spider hub attached to motor.
Locate and remove spider and mounting shim(s) (if
present) from the deck.
3
4
5
2
6.
If required, remove spider hub from motor shaft.
Straighten tab washer and remove nut and spider.
1
2
9
Installation
6
4
7
8
1.
If removed, install spider hub to motor shaft with tab
10
12
13
14
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.
11
15
27 to 33 ft--lb
(37 to 45 N--m)
2.
Check for proper clearance between spider hub and
spindle pulley. Install motor to cutting deck without plac-
ing the spider in the spindle pulley. The clearance be-
tween hub and pulley valleys should be from .830” to
.930”
(21.1to23.6mm).Ifrequired,usemountingshims
between motor and motor mount to adjust clearance.
16
3.
Position spider in spindle pulley. Place mounting
shim(s) (if required) on deck. Carefully install hydraulic
motor to the cutting deck taking care not to damage spi-
der hub attached to motor.
Figure 67
1.
Cutting deck motor
O--ring
Hydraulic adapter
O--ring
9.
90o hydraulic fitting
4.
screws (Fig. 66).
Secure motor to cutting deck with two flange head
2.
3.
4.
5.
6.
7.
8.
10. Woodruff key
11. Shim (if required)
12. Spider hub
13. Tab washer
14. Nut
Flange head screw (2)
O--ring
IMPORTANT: For proper hydraulic hose routing,
make sure cutting decks are fully lowered before
installing hoses to deck motor.
90
o hydraulic fitting
15. Spider
16. Cutting deck
O--ring
5.
Remove caps or plugs from fittings and hoses. Con-
nect hydraulic hoses to deck motor.
6.
hoses and fittings are not contacted by moving compo-
nents through full range of deck movement.
After assembly is completed, verify that hydraulic
Groundsmaster 4100--D
Page 4 -- 85
Hydraulic System
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