Disassembling and assembling pinion housing with drive pinion

AR35.30-T-0470A

Disassembling and assembling pinion housing with drive pinion

11.1.10



Removing

1

Remove pinion housing with drive pinion

AR35.30-T-0469A



Disassemble

2

Remove blind screw (6)

 An oil temperature measuring sensor can be screwed in here.

3

Remove connector flange (2)

 Unlock collar nut, loosen with the aid of ratio wrench and unscrew. Pull off coupling flange using the puller.



*001589750900



*035589013300



*717589003100



*000589696300

4

Remove sealing ring (3) from pinion housing (7)

5

Remove drive pinion (12) from pinion housing (7)

 Place pinion housing on two wooden blocks and drive out drive pinion using a plastic mallet.

6

Remove spacer (9) from drive pinion (12)

7

Pull inner tapered roller bearing (11) off drive pinion (12)



*001589343300



*001589353300



*001589393300

8

Remove outer tapered roller bearing (4) from pinion housing (7)

9

Remove outer races (5 and 10) of the two tapered roller bearings (4 and 11) from pinion housing (7)



*000589163300

10

Drive oil retainer (8) using a drift out of the pinion housing (7)



Assemble

11

Drive oil retainer (8) into the pinion housing (7)

12

Drive outer races (5 and 10) of the two tapered roller bearing (4 and 11) into the pinion housing (7)



*343589051500

13

Determine shim thickness on drive pinion

AR35.30-W-0470-03A

Danger!

Risk of injury to skin and eyes caused by handling hot or glowing objects.

Wear safety gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

14

Slide inner tapered roller bearing (11) onto drive pinion gear (12) as far as the stop

 Heat tapered roller bearing to approx. 80 °C before installing.

15

Slide shim (9) with determined thickness onto drive pinion (12)

 Only one shim may be used.

16

Mount pinion housing (7) on the drive pinion (12)

Danger!

Risk of injury to skin and eyes caused by handling hot or glowing objects.

Wear safety gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

17

Build outer tapered roller bearing (4) up to the end stop on the shim on the drive pinion (12)

 Heat tapered roller bearing to approx. 80 °C before installing. Use suitable sleeve to drive in.

18

Check friction torque of tapered roller bearing of drive pinion

AR35.30-T-0470-04A



*BA35.30-N-1002-03F

*BE35.30-N-1004-01G



*745589012100



*717589003100



*001589750900



*000589696300



*001589220900

19

Install radial sealing ring (3) in the pinion housing (7)

20

Attach coupling flange (2)



- Lubricate splines of the drive pinion lightly.

- Replace collar nut.

 Use ratio wrench when tightening the collar nut.

- Secure collar nut after final tightening. In the process the collar of the collar nut is folded over in the groove provided on the end of the drive pinion shaft using a suitable drift.



*001589750900



*717589003100



*000589696300



*BA35.30-N-1002-03F

21

Screw in blind screw (6)

 An oil temperature measuring sensor can be screwed in here.



*BA35.30-N-1003-03F



Install

22

Install pinion housing with drive pinion

AR35.30-T-0469A

Number

Designation

Rear axle
748.513/ 524 with
crown wheel dia.
 233 mm

BE35.30-N-1004-01G

Friction torque for drive pinion tapered roller bearing (without sealing rings)

Nm

2...3

Number

Designation

Rear axle 748.513/524

BA35.30-N-1002-03F

Collar nut, coupling flange to
drive pinion

Nm

750

BA35.30-N-1003-03F

Blind screw, oil temperature measuring sensor

Nm

35