ar2850w100301b

Remove/install planetary gears

Type ar · topic 28.50 · version 0107 · 2008-11-28

Applies to: TRANSFER CASE 750.860 /861 /864 /865

Where it sits

Function group 2 Chassis › 28 Transfer case › 28.50 Gear assembly, shafts

EinPAS 17 Drivetrain/axle › 17.22 Transfer case › 17.22.52 Planetary gear set

Also applies to engines/gearboxes: 750 860, 750 861, 750 864, 750 865

AR28.50-W-1003-01B

Remove/install planetary gears

Transfer case gear set, shafts

Number

Designation

Transfer case
750.860

Transfer case
750.861/
864/865

BA28.50-N-1003-01A

Threaded pin for securing to planetary axle

M6

Nm

5

5

Repair materials

Number

Designation

Order number

BR00.45-Z-1008-06A

Silicone-based grease

A 001 989 28 51 10

Remove/install planetary gears

W28.50-0051-01

Remove

1 Remove grub screw (4).

Usually it is not possible to remove the secured grub screw (4), so use a 4 mm dia. drill bit to drill out the core as far as the planetary gear axle (5).

2 Remove planetary gear axle (5) out of planet carrier (6) using a drift.

3 Remove planetary gear (3), thrust plates (1) and needle rollers (2) from planet carrier (6).

4 Remove rest of drilled-out grub screw (4) using an M5 tap and recut thread in planet carrier (6) using a M6 tap.

Remove/install planetary gears

W28.50-0052-01

Install

5 Place planetary gear (3) on a thrust plate (1) and fill with a little multipurpose grease.

6 Insert 28 needle rollers (2) into planetary gear with a little multipurpose grease.

7 Place second thrust plate (1) on planetary gear.

Remove/install planetary gears
Remove/install planetary gears

W28.50-0051-01

8 Insert planetary gear (3) with thrust plates (1) and needle rollers (2) into planet carrier (6).

9 Install the planetary gear axle (5) such that the two holes (arrows) are in alignment and the oil hole (7) faces outward.

10 Screw in grub screw (4) and caulk with a suitable tool.

W28.50-0053-01