Remove/install differential assembly

AR35.30-W-0432I

Remove/install differential assembly

30.11.11

 

Remove/install



Notes on evaluating leakages

AH00.00-N-0011-01A

1

Remove propeller shaft on drive flange of rear axle

 Support propeller shaft.

AR41.10-W-0050A

2

Drain oil from through-drive housing

Through-drive housing for rear axle oil change

Rear axles 748.2/7

AP35.00-W-3502A

Rear axle 740.8

AP35.00-W-3502G

3

Remove bell hub with rear axle shaft

AR35.20-W-0270A

4

Detach electrical connectors on differential assembly (1)

5

Detach compressed air lines from interaxle and interwheel differential lock

6

Secure differential assembly (1) against falling down

 Before removing the last two bolts the differential assembly (1) must be made secure on the inspection pit lift. Otherwise the differential assembly (6) may drop out of the axle housing in an uncontrolled manner.

7

Remove differential assembly (1)

 Installation: Clean sealing surfaces on differential assembly (1) and on axle housing and coat with sealant.

*BR00.45-Z-1015-01A

Pay attention to different lengths of bolts.

 Rear axle 748.26/27

*BA35.30-N-1001-03A

 Rear axle 740.89, 748.703

*BA35.30-N-1001-03B

8

Install in the reverse order

Number

Designation

Rear axle 748.26/27
with through-drive, 233 mm dia. ring gear

BA35.30-N-1001-03A

Bolt for axle housing to axle housing

M121.5

12,9

Serrated bolt

Nm

-

Flat collar bolt

Stage 1

Nm

-

Stage 2

°

-

Hexagon bolt
In area of diff. lock

Nm

-

Corrugated fin bolt

Stage 1

Nm

210

Stage 2

°

30

Number

Designation

Rear axle 748.26/27
with through-drive, 300 mm dia. ring gear

BA35.30-N-1001-03A

Bolt for axle housing to axle housing

M121.5

12,9

Serrated bolt

Nm

-

Flat collar bolt

Stage 1

Nm

-

Stage 2

°

-

Hexagon bolt
In area of diff. lock

Nm

-

Corrugated fin bolt

Stage 1

Nm

210

Stage 2

°

30

Number

Designation

Rear axle
740.893/895/897/
898, (NAG),
with through-drive,
300 mm dia. ring gear

Rear axle 748.703 (NAG),
with through-drive,
233 mm dia. ring gear

BA35.30-N-1001-03B

Bolt for axle housing to axle housing

M121.5

12.9

Serrated bolt

Nm

-

-

Flat collar bolt

Nm

-

-

Hexagon bolt
In area of diff. lock

Nm

-

-

Corrugated fin bolt

Nm

220

220

Number

Designation

Order number

BR00.45-Z-1015-01A

Loctite 5203 sealant

A 002 989 71 20 10