ar3530b430004b

Remove/install ring gear on differential housing

Type ar · topic 35.30 · version 0200 · 2020-08-14

Applies to: Rear axle 746.231/305 in model 934.24, 938.14, 958.4

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.30 Final drive, drive shafts — Series 934 (models 24*) · Series 938 (models 14*) · Series 958 (models 4**)

EinPAS 17 Drivetrain/axle › 17.51 Rear axle › 17.51.65 Rear axle differential/axle through-drive — Series 934 (models 24*) · Series 938 (models 14*) · Series 958 (models 4**)

Also applies to engines/gearboxes: 746 231, 746 305

AR35.30-B-4300-04B

Remove/install ring gear on differential housing

Rear axle

746.231/305 in model 934.24, 938.14, 958.4

Central actuation with differential

Number

Designation

Rear axle 746.231/305

BA35.30-B-1014-03J

Ring gear in the differential box

M18x1.5

1st stage

Nm

200

2nd stage

°

90

Repair materials

Number

Designation

Order number

BR00.45-Z-1112-06A

Lubricating oil for transfer case and drive axle, DB supply specification 6630.00 - SAE 85W90 and 90

Use corresponding commercially available repair materials.

Remove

Remove/install ring gear on differential housing

1

Remove the screws (1) leaving four screws partially tightened on the opposite sides of the differential case (3).


Loose only four screw turns not to damage the differential case threads (3).



2

Support the toothed crown (2) with the teeth side (arrows) on a proper base.


The differential case (3) should not be supported.



3

Remove the toothed crown (2) from the differential case (3) with plastic mallet blows over the screw heads (1).


Hit on the screw head (1)alternately until is detached from the differential housing (3) the toothed crown (2).


B35.31-0020-11

Install

Remove/install ring gear on differential housing

4

Mount the guide screws (4) on the differential case (3) and mount the toothed crown (2).


Before to assembly, lubricate all moving parts with gear oil.



5

Mount the screws (1) and tighten with the prescribed torque. 


For better control of the tightening, mark the screws (1) as they are tightened.


B35.31-0019-02