Hub Assembly Kit

1. Park the machine on a level surface.

2. Engage the parking brake.

3. Lower the cutting units.

4. Shut off the machine and remove the key.

5. Disconnect the main-power connectors; refer to your machine Operator’s Manual.

Raise the machine; refer to the pre-maintenance section of your machine Operator’s Manual.

1. Remove the 4 lugnuts (Figure 1) that secure the wheel to the wheel-hub assembly.

   

   Figure 1

   1. Lugnut

2. Remove the wheel from the machine.

1. Remove the dust cap from the hub assembly (Figure 2).

   

   Figure 2

   1. Dust cap with O-ring
   2. Snap ring
   3. Hub assembly

2. Remove the snap ring and twist the hub assembly off the shaft in a counterclockwise (forward) direction.

Parts needed for this procedure:

Install the hub assembly, thrust washers, bearing, snap ring, and dust cap with O-ring on the axle shaft (Figure 3).

When you install the snap ring, compress the wave washer in the hub assembly.

Figure 3

1. Dust cap
2. O-ring
3. Snap ring
4. Thrust washers
5. Bearing
6. Hub assembly

Grease the hub assembly; refer to Greasing the Hub Assembly.

1. Use the previously removed lugnuts to secure the wheel to the hub (Figure 4).

   

   Figure 4

   1. Lugnut

2. Torque the lugnuts (in a crossing pattern as shown in Figure 5) to 108 to 122 N∙m (80 to 90 ft-lb).

   

   Figure 5

1. Lower the machine to the ground.

2. Connect the main-power connectors; refer to your machine Operator’s Manual.

Use No. 2 lithium grease to lubricate the hub assembly. Refer to Figure 6 for the location of the hub-assembly grease fitting.

Figure 6

1. Grease fitting