Disassemble/assemble ring gear with differential

AR33.30-G-0465B

Disassemble/assemble ring gear with differential

28.07.2014

FRONT AXLE

737.570/571/572/580/581/583/590/592

FRONT AXLE

737.910 in MODEL 000.001

Shown on non-reinforced differential of front axle 737.570

1

Ring gear

2

Differential housing

3

Nut

4

Small tapered roller bearing

5

Large tapered roller bearing

Shown on non-reinforced differential of front axle 737.570

1

Ring gear

8

Short differential gear shafts

12

Thrust segment

2

Differential housing

9

Thrust segment

13

Differential pinion

6

Differential side gear

10

Differential pinion

14

Differential side gear

7

Retaining ring

11

Long differential gear shaft

15

Thrust plate

 

Disassemble/assemble

1

Disassemble front axle

AR33.10-G-0060B

 Assembly: The axle drive is adjusted as part of assembly of the front axle.
During the adjustment operations on the axle drive, the new small tapered roller bearing (4) and the new large tapered roller bearing (5) must be installed.

2

Mark ring gear (1) relative to differential housing (2)

3

Remove screws/bolts of ring gear (1) on differential housing (2)

 Assembly: Replace bolts and nuts (3).
Tighten the nuts (3) in a crosswise sequence.

 FRONT AXLE 737.570/571/572/580/581
FRONT AXLE 737.910 in MODEL 000.001
Assembly: Depending on the version, either one or 4 of these bolts may be fitted bolts.
The fitted bolt with the thicker shank must be screwed into the large hole.

 FRONT AXLE 737.583/590/592
Assembly: No fitted bolts are installed.

 Bolt, ring gear to differential housing

*BA33.30-N-1001-04B

4

Detach ring gear (1) from differential housing (2)

 Assembly: Observe markings.

5

Pull small tapered roller bearing (4) off differential housing (2)

 To pull off, additionally use a drift of 70 mm dia. and approx. 80 mm long.

 Assembly: Replace the small tapered roller bearing (4), but do not yet install it.
The small tapered roller bearing (4) is installed when the axle drive is adjusted.

 Puller

*000589453300

6

Detach large tapered roller bearing (5) from ring gear (1)

 To pull off, additionally use a drift of 70 mm dia. and approx. 80 mm long.

 Assembly: Replace the large tapered roller bearing (5), but do not yet install it.
The large tapered roller bearing (5) is installed when the axle drive is adjusted.

 Puller

*000589453300

7

Remove differential side gear (6) from ring gear (1)

8

Remove retaining rings (7) from the groove

9

Pull out both short differential gear shafts (8)

 Depending on the front axle version, a bushing may be installed between the short differential gear shafts (8) and the differential pinions (10).

 Assembly: Coat the short differential gear shafts (8) with running-in paste.

Molybdenum disulfide running-in paste

*BR00.45-Z-1045-06A

10

Take out both starting segments (9) and differential bevel gears (10)

 Assembly: Coat starting segments (9) with running-in paste.

Molybdenum disulfide running-in paste

*BR00.45-Z-1045-06A

11

Remove long differential gear shaft (11)

 Depending on the front axle version, a bushing may be installed between the long differential gear shaft (11) and the differential pinions (13).

 Assembly: Coat long differential gear shaft (11) with running-in paste.

Molybdenum disulfide running-in paste

*BR00.45-Z-1045-06A

12

Take out both starting segments (12) and differential bevel gears (13)

 Assembly: Coat starting segments (12) with running-in paste.

Molybdenum disulfide running-in paste

*BR00.45-Z-1045-06A

13

Remove differential side gear (14) and thrust plate (15) from differential housing (2)



Clean

14

Clean all parts



Check

15

Check all parts for wear and damage

If there are problems:



Replace worn or damaged parts.

 Assembly:
The ring gear (1) may only be replaced together with the drive pinion in the event of a complaint.
Ensure manufacturing numbers are the same.
The differential can otherwise be damaged.

 FRONT AXLE 737.570/571/572/580/581
FRONT AXLE 737.910 in MODEL 000.001
Assembly: The ring gear (1) is available with 8-bolt or 12-bolt threaded connections, and the differential housing (2) is only available with 12-bolt connections.
Therefore, when a ring gear (1) with 8-bolt threaded connections is used, only 7 bolts and one fitted bolt can be used, or for the alternative version 4 bolts and 4 fitted bolts. Alternatively the ring gear (1) with a 12-bolt threaded connection can be installed. For this, 11 bolts and one fitted bolt can then be used, or for the alternative version 8 bolts and 4 fitted bolts.

 FRONT AXLE 737.583/590/592
Assembly: The ring gear (1) is attached to the differential housing (2) by an 8­bolt threaded connection.

16

Assemble in the reverse order

 Ring gear with differential

Number

Designation

FRONT AXLE 737.570/571/572/580/581

FRONT AXLE 737.583/590/592

BA33.30-N-1001-04B

Bolt, ring gear to differential housing

Fit bolt

Nm

105

–

Screw

Nm

105

300

 Ring gear with differential

Number

Designation

FRONT AXLE 737.910

BA33.30-N-1001-04B

Bolt, ring gear to differential housing

Fit bolt

Nm

105

Screw

Nm

105

Repair materials

Number

Designation

Order number

BR00.45-Z-1045-06A

Molybdenum disulfide running-in paste

A 000 989 51 51 10