Toro 3020, 5020, 2020 Assembly Fig, Use eye protection such as goggles when using compressed air

14.If the housing (3) has passed inspection to this point, inspect outer bearing (2), inner bearing (10), thrust washers (8), and thrust bearing (9). Bearing roll- ers must be firmly retained in the bearing cages but must rotate and orbit freely. All rollers and thrust washers must be free of peening and corrosion. If any bearing or thrust washer does not pass inspection, replace the housing (3) as a complete assembly (Fig. 71).

Assembly (Fig. 60)

1.Lubricate all seals and seal rings with clean hydrau- lic oil before assembly.

WARNING

Since they are flammable, be extremely careful when using any solvent. Even a small explo- sion or fire could cause injury or death.

CAUTION

Use eye protection such as goggles when using compressed air

2.Wash all parts in a clean petroleum–based solvent before assembly. Blow parts dry with compressed air.

3.Press a new dirt and water seal (1) into the housing

(3) outer bearing counterbore. Press seal in with the lip facing out and until the seal is 0.020 inch (0.51 mm) be- low the end of housing.

4.Place housing (3) into a soft jawed vise with the cou- pling shaft bore down; clamp against the mounting flange.

IMPORTANT: Early model wheel motors that do not have back–up washer (6), assemble with a new back–up washer (4), new back–up washer (6), and new seal (7).

5.A housing (3) that does not require replacement will require that the two thrust washers (8) and thrust bear- ing (9) be unseated and vertical to the counterbore and the new back–up washer (4), new back–up washer (6), and new seal (7) be worked around the thrust bearing package and placed into their respective counterbores (Fig. 73 and 72). The seal lip must face out of the seal counterbore and toward the inside of wheel motor (Fig. 74). Be sure the thrust bearing package is reseated cor- rectly after assembly of the new seal and back–up wash- ers.

Hydraulic System (Rev. A) Page 4 – 66

Figure 71

Figure 72

Figure 73

Figure 74

Sand Pro 2020/3020/5020