ar3530i047005a

Check tapered roller bearings of differential housing

Type ar · topic 35.30 · version 0103 · 2007-05-03

Applies to: REAR AXLE 746.642 /645 /646 /647 /669 /680 /681 /682, 748.800

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.30 Final drive, drive shafts

EinPAS 17 Drivetrain/axle › 17.51 Rear axle › 17.51.65 Rear axle differential/axle through-drive

Also applies to engines/gearboxes: 746 642, 746 645, 746 646, 746 647, 746 669, 746 680, 746 681, 746 682, 748 800

AR35.30-I-0470-05A

Check tapered roller bearings of differential housing

Check tapered roller bearings of differential housing

N35.30-2034-12

In the event of a complaint a tapered roller bearing must always be replaced complete.

1 Check surface of bearing inner race (A) and tapered rollers (D) for cut edges and scratches.

2 Examine roller cage (B) for bright signs of wear (small arrows).

3 Check surface of bearing inner race (A) and
bearing outer race (C).

In the process search for tarnished and flaked points.

4 Check the side of the tapered rollers (D) with the larger diameter for the following wear conditions:

- The bearing inner race (A) has "dug" into the surface of a tapered roller (D).

- A perceptible burr is present on the surface.