Cutting Deck Motor - Toro Groundsmaster 4100-D Service Manual

Cutting Deck Motor

Removal
1. Park machine on a level surface, lower cutting
decks, 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 the Service and Repairs section of this chapter.
3. Disconnect hydraulic lines from deck motor. Put
caps or plugs on fittings and hoses to prevent contami-
nation. Tag hydraulic lines for proper reassembly.
4. Remove two flange head screws that secure hydrau-
lic motor to motor mount (Fig. 66).
5. Carefully remove hydraulic motor from cutting deck
taking care not to damage spider hub attached to motor.
Locate and remove spider and mounting shim(s) (if
present) from the deck.
6. If required, remove spider hub from motor shaft.
Straighten tab washer and remove nut and spider.
Installation
1. If removed, 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 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" (21.1 to 23.6 mm). If required, use mounting shims
between motor and motor mount to adjust clearance.
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.
4. Secure motor to cutting deck with two flange head
screws (Fig. 66).
IMPORTANT: For proper hydraulic hose routing,
make sure cutting decks are fully lowered before
installing hoses to deck motor.
5. Remove caps or plugs from fittings and hoses. Con-
nect hydraulic hoses to deck motor.
6. After assembly is completed, verify that hydraulic
hoses and fittings are not contacted by moving compo-
nents through full range of deck movement.
Groundsmaster 4100--D
4
1. Cutting deck motor
2. Flange head screw
3. Inlet hose
4
16
1. Cutting deck motor
2. O- -ring
3. Hydraulic adapter
4. O- -ring
5. Flange head screw (2)
6. O- -ring
o
7. 90 hydraulic fitting
8. O- -ring
Page 4 - - 85
1
5
2
Figure 66
4. Return hose
5. Case drain hose
3
5
2
4
1
2
9
6
7
8
10
12
11
13
14
15
27 to 33 ft- -lb
(37 to 45 N- -m)
Figure 67
o
9. 90 hydraulic fitting
10. Woodruff key
11. Shim (if required)
12. Spider hub
13. Tab washer
14. Nut
15. Spider
16. Cutting deck
Hydraulic System
3