AR35.20-T-0310AA | Remove/install rear wheel hub | 22.3.07 |
REAR AXLE 748.120 /121 /122 /123 /124 /125 /126 /134 /135
T35.20-0026-01
1 Outer slotted nut
2 Slotted nut wrench
T35.20-0027-01
T35.20-0041-06
1 Outer slotted nut
3 Locking plate
4 Inner slotted nut
5 Support disk
6 Outer tapered roller bearing
8 Rear wheel hub
10 Inner tapered roller bearing
11 Cassette-type sealing ring
| Removing | ||
1 | Remove brake drum | ||
2 | Drain oil from rear wheel hub (8) | Collect oil in a suitable container. Observe disposal regulations. | |
3 | Remove rear axle shaft | ||
4 | Release and unscrew outer slotted nut (1) | ||
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5 | Remove locking plate (3) | ||
6 | Unscrew inner slotted nut (4) | Use a suitable tool to secure rear wheel hub (8) to prevent it from falling down. When unscrewing the inner slotted nut (4) with the slotted nut wrench (2) the rear wheel hub (8) is simultaneously pulled off the wheel carrier. | |
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7 | Remove support disk (5) | ||
8 | Remove outer tapered roller bearing (6) | ||
9 | Detach rear wheel hub (8) from wheel carrier | ||
10 | Remove cassette-type sealing ring (11) | ||
11 | Detach inner tapered roller bearing (10) | ||
| Checking | ||
12 | Check rear wheel hub (8), outer tapered roller bearing (6) and inner tapered roller bearing (10) for wear | If necessary, disassemble and repair rear wheel hub (8): | |
Disassemble/assemble rear wheel hub | |||
| Install | ||
13 | Insert inner tapered roller bearing (10) in the rear wheel hub (8) | Oil inner tapered roller bearing (10). | |
14 | Install cassette-type sealing ring (11) | Observe installation depth of cassette-type sealing ring (11) otherwise leaks can occur at the rear wheel hub (8). | |
15 | Wet inside diameter of cassette-type sealing ring (11) and sealing surface of wheel carrier with spirit | This makes it easier to assemble the rear wheel hub (8) on the wheel carrier. | |
16 | Slide rear wheel hub (8) onto wheel carrier | Do not tilt over the rear wheel hub (8) when pushing onto the wheel carrier otherwise the lip of the cassette-type sealing ring (11) may become damaged | |
17 | Install outer tapered roller bearing (6) in rear wheel hub (8) | Oil outer tapered roller bearing (6) | |
18 | Slide support disk (5) onto wheel carrier | ||
19 | Screw on inner slotted nut (4) | The chamfer of the inner slotted nut (4) must point outwards. | |
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20 | Perform basic setting of wheel bearings | ||
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21 | Measure wheel bearing play of rear wheel hub (8), adjust if necessary | ||
22 | Install rear axle shaft | ||
23 | Install brake drum | ||
24 | Pour oil into the rear wheel hub (8) | ||
| Rear axle - oil change |
Hub
Number | Designation | Rear axles | ||
BA35.20-N-1001-06M | Inner slotted nut, wheel hub to wheel carrier | Stage 1 | Nm | 550 |
Stage 2 | ° | -120 | ||
BA35.20-N-1002-06M | Outer slotted nut, wheel hub to wheel carrier | Nm | 595 | |
400 589 01 07 00
Wrench socket
Torque wrench
000 589 39 21 00