D35.30-0122-06
1 Collar nut
2 Drive flange
3 Radial sealing ring
4 Threaded ring
5 Spacer ring
6 Outer tapered roller bearing
7 Outer race of outer bearing
8 Compensating ring (split)
9 Circlip
10 Inner race
11 Drive pinion
12 Inner tapered roller bearing
13 Inner race of outer bearing
14 Spacer ring
| Disassemble | ||
1 | Remove ring gear with differential | ||
2 | Remove drive pinion | ||
3 | Remove circlip (9) | ||
4 | Pull inner race (10) of pinion head bearing off drive pinion gear (11) | | |
5 | Release and unscrew collar nut (1) | Attach retainer wrench to drive flange (2) | |
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6 | Detach drive flange (2) from drive pinion (11) | | |
7 | Remove threaded ring (4) and shim (5) from drive pinion (11) | ||
8 | Remove radial sealing ring (3) | ||
9 | Pull off outer and inner tapered roller bearings (6 and 12) | | |
| Assemble | ||
10 | Drive new inner race (10) of pinion head bearing onto drive pinion gear (11) | Heat up new inner race (10) to approx. 80 °C. The larger inside chamfer of the inner race (10) faces towards the splines. | |
11 | Install circlip (9) | ||
12 | Drive inner tapered roller bearing (12) onto drive pinion (11) | Heat up inner tapered roller bearing (12) to approx. 80 °C | |
13 | Place inner bearing outer race (13), spacer ring (14) and outer bearing outer race (7) in position | ||
14 | Drive outer tapered roller bearing (6) onto drive pinion (11) | Heat up outer tapered roller bearing (6) to approx. 80 °C | |
15 | Fit shim (5) | ||
16 | Install new radial sealing ring (3) in threaded ring (4) and fit threaded ring (4) on drive pinion (11) | Lightly grease sealing lips and pack space between dust and sealing lips with multi-purpose grease | |
Coat radial sealing ring (3) without rubberized external surface with sealant | |||
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17 | Push on drive flange (2) | Lightly oil splines on drive pinion (11) with transmission oil | |
18 | Tighten new collar nut (1) | Attach retainer wrench to drive flange (2) | |
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19 | Secure collar nut (1) | ||
20 | Install compensating ring (8) | The compensating ring (8) must fit snugly between the outer races (13 and 7) | |
21 | Fit collar clamp and measure friction torque | ||
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| Clamp for clamping the assembled drive pinion | ||
Thoroughly oil tapered roller bearings | |||
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22 | Installing drive pinion | ||
23 | Install crown wheel with differential |
Inspection data of rear axle final drive
Number | Designation | Rear axle 742.4/5 | ||
BE35.30-N-1003-01D | Friction torque of tapered roller bearing on drive pinion | Nm | 1.4 to 3.5 | |
Rear axle drive
Number | Designation | Rear axle 742.487/501 | |||
BA35.30-N-1005-02B | Collar nut, coupling flange to drive pinion gear | M321.5 | Nm | 300 | |
312 589 00 15 00
Torque wrench
Thrust piece
Wrench socket
Retainer wrench
001 589 74 09 00
745 589 01 21 00
717 589 00 31 00
000 589 45 33 00
Puller
Puller
Puller
Ratio wrench
001 589 19 33 00
035 589 01 33 00
000 589 78 63 00
Repair materials
Number | Designation | Order number |
BR00.45-Z-1012-01A | Omnifit FD 3041 sealing compound | A 002 989 47 20 10 |
BR00.45-Z-1023-06A | Hypoid gear oil | A 000 989 28 03 |
BR00.45-Z-1034-06A | MB multipurpose grease | A 001 989 34 51 10 |
Referenced documents
- ar3530d0458a Remove/install drive pinion
- ar3530d045909a Install shim on drive pinion
- ar3530d0464a Remove/install crown wheel with differential
- ar3530d047004a Checking friction torque of tapered roller bearings
- ar3530d467004a Secure collar nut on joint flange drive pinion
- wf5850n353005b Clamp for clamping the assembled drive pinion