1 | (Bearing) retainer |
2 | (Hub) radial seal |
3 | Inner tapered roller bearing |
4 | Wheel hub (with disc) |
5 | Outer tapered roller bearing |
6 | Stop washer |
7 | Lock screw |
8 | Roller bearing fastening nut |
9 | Gasket |
10 | Hub cap |
11 | Bolt |
12 | Extractor |
B33.20-0038-06
| Remove | ||
1 | Remove the front wheels | ||
2 | Remove the ABS sensor | ||
For vehicles equipped with anti-lock brake system ABS. | |||
3 | Remove the disc brake caliper |
| |
4 | Remove the screws (11) and the hub cap (10) | ||
5 | Loosen the locking screw (7) and remove the roller bearing fastening nut (8) | Socket wrench bit | |
6 | Remove the thrust washer (6) | ||
7 | Extract the wheel hub (4) | If the inner race of the inner tapered roller bearing (3) gets stuck in the shaft sleeve, it should be removed using the extractor. | |
Puller | |||
Puller | |||
8 | Extract the outer tapered roller bearing (5) from the wheel hub (4) | ||
9 | Remove the radial seal (2) and the inner tapered roller bearing (3) from the wheel hub (4) | ||
10 | Remove the retainer (1) from the inner tapered roller bearing (3) | The retainer (1) is housed in the inner race of the inner tapered roller bearing (3). Note the mounting position for future reference. | |
| Install | ||
11 | Install the retainer (1) on the inner tapered roller bearing (3) | Installation: Use a new retainer. | |
12 | Install the inner tapered roller bearing (3) on the wheel hub (4) | Lubricate the bearing with grease. | |
13 | Install the radial seal (2) on the wheel hub (4) | Use a new radial seal. | |
14 | Lubricate the lips of the retainer and the radial seal with grease | ||
15 | Carefully install the wheel hub (4) on the shaft sleeve with the aid of the special tool | ||
Make sure that, when installing the wheel hub (4), the retainer is not damaged. | |||
Assembly tool | |||
16 | Grease and install the outer tapered roller bearing (5) using the suitable mandrel | Wheel hub grease (per hub) | |
Drift | |||
17 | Install the thrust washer (6) | ||
18 | Install the roller bearing fastening nut (8) and adjust the axial play | ||
When tightening the nut, turn the hub continually. | |||
Nut with lock screw | |||
19 | Tighten the locking screw (7) to the prescribed torque | Lock screw | |
20 | Installing the hub cap gasket (9), the hub cap (10) and the screws (11) | Installation: Use a new gasket. | |
Fill the hub cap with grease. | |||
Hubcap grease | |||
Hub cap screw | |||
21 | Install the disc brake caliper |
| |
22 | Install the ABS sensor | ||
For vehicles equipped with anti-lock brake system ABS. | |||
23 | Install the front wheels | ||
After traveling the first 50 to 100 km, tighten the wheel fastening nuts. | |||
.Nuts with integrated washer - centering in the wheel hub |
Wheel hub, hub hubcap |
Number | Designation | Front axle 739.3/4/5 | |||
BF33.20-B-1001-01A | Wheel hub grease (per hub) | Filling volume | gramas | 180 | |
Class | Specification (except Brazil) | MB 267.1 | |||
Specification (Brazil) | Consultar documento AH00.40-B-0001-01MBF no site Mercedes-Benz / Guia de Lubrificantes. |
Wheel hub, hub hubcap |
Number | Designation | Front axle 739.3/4/5 | |||
BF33.20-B-1002-01A | Hubcap grease | Replenishment quantity | gramas | 40 | |
Class | Specification (except Brazil) | MB 267.1 | |||
Specification (Brazil) | Consultar documento AH00.40-B-0001-01MBF no site Mercedes-Benz / Guia de Lubrificantes. |
389 589 00 13 00
Socket wrench bit
000 589 45 33 00
Puller
035 589 01 33 00
Puller
055 589 34 15 00
Drift
055 589 00 43 00
Assembly tool