Toro 4100-D service manual Cutting Deck Motor, Removal, Installation

Cutting Deck Motor

Removal

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 motor to motor mount (Fig. 78).

6.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.

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 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 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 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 motor to the cutting deck taking care not to damage spi- der hub attached to motor.

4.Secure motor to cutting deck with two (2) flange head screws (Fig. 78).

IMPORTANT: For proper hydraulic hose routing, make sure cutting deck is 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.

1 5

4

2

3

Figure 78

1.	Cutting deck motor	4.	Return hose
2.	Flange head screw	5.	Case drain hose
3.	Inlet hose

5	2	3	4
1
2
4 7				8
10			6	9
				12
	11
			13
				14	27 to 33 ft-lb
				15	(37 to 45 N-m)
16

Figure 79

1.	Cutting deck motor	9.	90o hydraulic fitting
2.	O-ring	10.	Woodruff key
3.	Hydraulic adapter	11.	Shim (if required)
4.	O-ring	12.	Spider hub
5.	Flange head screw (2)	13.	Tab washer
6.	O-ring	14.	Nut
7.	90o hydraulic fitting	15.	Spider
8.	O-ring	16.	Cutting deck

Hydraulic System

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