Toro service manual Installation Fig, Hydraulic, Systems, Sand Pro 2020/3020/5020, Page 4

8.Remove both socket head screws and lock nuts se- curing the hydraulic motor the fork.

WARNING

Before jacking up the machine, review and follow Jacking Instructions in Chapter 1 – Safety.

IMPORTANT: Support wheel and motor when jack- ing up the front fork to prevent dropping and dam- aging the motor.

9.Jack up fork slowly until the hydraulic motor and flangettes can be removed from the fork. Remove flan- gettes, spindle, wheel, and motor from the fork.

10.Slide flangettes and bearing assembly from the spindle. Do not further disassemble flangettes and bear- ing.

11.Remove four lug nuts from the drive studs. Remove wheel from the drive studs and spindle. Separate spindle from drive studs and wheel hub.

12.Lock wheel hub in a vice. Remove lock nut from the shaft of the hydraulic motor. Pull motor shaft from hub. Remove woodruff key from the motor shaft.

Installation (Fig. 29)

1.Lock wheel hub in a vice. Install woodruff key into the hydraulic motor shaft. Slide motor shaft into hub and secure with lock nut. Torque lock nut from 200 to 400 ft– lb (27.7 to 55.3 kg–m).

2.Install spindle to drive studs and wheel hub. Insert spindle and drive studs through wheel. Make sure valve stem and hydraulic motor are on the opposite sides of the wheel.

3.Secure lug nuts to drive studs. Torque nuts from 45 to 55 ft–lb (6.2 to 7.6 kg–m).

4.Slide flangette and bearing assembly onto the spindle shaft so the locking collar faces the wheel.

5.Position hydraulic motor, wheel, and flangettes to the front fork.

6.Lower front fork slowly making sure flangettes and front wheel motor fit snugly into the fork.

A.Secure flangettes to the fork with cap screws, bearing tab, and locknuts.

B.Secure hydraulic motor to the front fork with socket head screws and lock nuts.

7.Lower fork completely. Make sure flangette and hy- draulic motor are positioned correctly into the fork. Tight- en fasteners properly.

8.Apply Loctite 242 or equivalent to both set screws. Install set screws to locking collar. Torque set screws from 65 to 80 in–lb (74.9 to 92.2 kg–cm).

9.Remove caps or plugs from disconnected hoses and fittings

10.Install O–rings and 45o hydraulic fittings to the hy- draulic motor. Torque fittings from 72 to 80 ft–lb (9.9 to

11kg–m).

11.Connect hydraulic hoses from 45o hydraulic fittings. torque hose connections from 25 to 30 ft–lb (3.5 to 4.1 kg–m).

12.Charge hydraulic system (see Charge Hydraulic System).

Hydraulic Systems

Sand Pro 2020/3020/5020 Page 4 – 57 Hydraulic System (Rev. A)