ar3520b0260a

Disassembling and assembling bell hub with outer planet carrier

Type ar · topic 35.20 · version 0100 · 2016-02-12

Applies to: Rear axle 740.3, 740.6, 740.7, 740.8

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.20 Wheel location, wheel hubs

EinPAS 17 Drivetrain/axle › 17.51 Rear axle › 17.51.41 Wheel carrier/steering knuckle/wheel hub/wheel bearing

Also applies to engines/gearboxes: 740 3**, 740 6**, 740 7**, 740 8**

AR35.20-B-0260A

Disassembling and assembling bell hub with outer planet carrier

12.02.16

Rear axle 740.3, 740.6, 740.7, 740.8

Disassembling and assembling bell hub with outer planet carrier

B35.20-0042-06

Series 740 rear axle with planetary gears and separate shafts

1 Planetary gear carrier

2 Internal thrust washers

3 Planetary gear shaft

4 Planet gears

5 Intermediate washers

6 Rollers

7 External thrust washers

8 Sun gear thrust washer

9 Bell hub

10 Bolts with integrated washers

Disassemble

1

Remove the bell hub with the planetary gear carrier

AR35.20-B-0250A

2

Remove the planetary gear carrier (1) from the bell hub (9)

Mark the mounting position of the planetary gear carrier on the bell hub.

AR35.20-B-0260-01A

Remove the external thrust washers (7)

Before disassembling the planetary gears, mark and maintain separate each set comprising of shaft, gears, rollers, thrust washer and intermediate washer.

4

Remove the planetary gears (4), the rollers (6) and the intermediate washers (5)

5

From the planetary gear carrier (1), remove the internal thrust washers (2) and the sun gear thrust washer (8)

6

Remove the shafts (3) from the planetary gear carrier (1)

Assembling

7

With a plastic hammer install the shafts (3) in the planetary gear carrier (1)

The shafts oil supply holes have to point outward.

8

Install the thrust washer of the sun gear (8) in the planetary gear carrier (1)

9

Install the internal thrust washers (2) on the shafts (3)

The internal thrust washer lubrication grooves will have to make contact with the planetary gears. Position the thrust washers (2) so they make contact with the thrust washer (8) of the planetary gear and remain fixed by pressure.

10

Install the planetary gears (4) centered over the shafts (3)

The planetary gears and the shafts are marked with the same color which represents the assembly. Only assemblies of the same color are to be installed .

11

Lubricate the rollers (6) and the intermediate rings (5) and install them in the planetary gears (4)

Confirm that the rollers (6) and the intermediate washers (5) remain free.

*BR00.45-B-1003-06A

12

Instal the external thrust washers (7) on the planetary gears (4)

The thrust washer lubrication grooves will have to make contact with the planetary gears.

13

Install the bell hub (9) on the planetary gear carrier (1)

AR35.20-B-0260-02A

Install new bolts. Bolts with integrated washer, once tightened to the specified torque, will have to be locked with a center punch. On cast bell hubs, self-locking bolts are to be utilized unconditionally.

*BA35.20-B-1002-06A

14

Install the bell hub with the planetary gear carrier

AR35.20-B-0250A

Hub

Número

Denominação

Rear axles 740.6, 740.7

BA35.20-B-1002-06A

Planetary carrier fastening bolt to the bell type hub

M14x1.5

Nm

260

Produtos para reparos

Número

Denominação

Número de pedido

BR00.45-B-1003-06A

Grease as per DBL 6804 - Class 267.0

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Referenced documents