Remove/install front crossmember

AR31.30-W-4115B

Remove/install front crossmember

12.02.2019

Model

963, 964

with code F3B (Cab mountings, comfort, steel-sprung)

except code F3A (Cab mountings, standard, steel-sprung)

Model

963, 964

with code F3C (Cab mountings, comfort, air-sprung)

except code F3A (Cab mountings, standard, steel-sprung)

Old and new as-built configuration

1

Crossmember (old, with 5 holes at top and M16 bolts at bottom)

2

Reinforcement (old)

3

Crossmember (new, with 4 holes at top and M18 bolts at bottom)

4

Reinforcement (new)

A

Old as-built configuration

B

New as-built configuration

Mixed as-built configuration

2

Reinforcement (old)

3

Crossmember (new, with 4 holes at top and M18 bolts at bottom)

5

Washers (for M16 bolts)

6

Bolt (M16x1.5x60)

7

Bolts (M16x1.5x70)

C

Mixed as-built configuration

Pfeil

Direction of travel

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A



Remove

1

Open maintenance flap

2

Remove front bumper center part

AR88.20-W-2003A

3

Remove side pieces of front bumper

Model 963 with code F7A (bumper, corners made of plastic)

AR88.20-W-2002A

Model 963, 964 with code F7B (bumper, corners made of steel)

AR88.20-W-2002B

4

Detach detachable parts from crossmember (1, 3)

5

Detach transmission oil cooler from brackets on crossmember (1, 3)

Only on vehicles with code N6Z (Transmission cooling).

 Do not separate connected lines.

6

Detach bracket for transmission oil cooler from crossmember (1, 3)

Only on vehicles with code N6Z (Transmission cooling).
Only if crossmember (1, 3) is to be replaced.

7

Remove crossmember (1, 3)



Install

8.1

Install crossmember (1, 3)

Old as-built configuration (A) or new as-built configuration (B)

 First tighten the lower bolts (6, 7) and then the upper bolts.

 Frame sections to frame

*BA31.30-N-1001-01D

8.2

Install crossmember (3)

Mixed as-built configuration (C)


Washers (5) must additionally be used for the lower bolts (6, 7).
Otherwise sufficient strength of the threaded connections cannot be assured.

 First tighten the lower bolts (6, 7) and then the upper bolts.
Part number of washers (5)
A 010 990 80 82 or
A 005 990 68 82

 Frame sections to frame

*BA31.30-N-1001-01D

9

Attach bracket for transmission oil cooler to crossmember (1, 3)

Only on vehicles with code N6Z (Transmission cooling).
Only if crossmember (1, 3) has been replaced.



Holder for transmission oil cooler on front crossmember modified

BT31.30-W-0001-01A

10

Attach transmission oil cooler to brackets on crossmember (1, 3)

Only on vehicles with code N6Z (Transmission cooling).

11

Attach detachable parts to crossmember (1, 3)

12

Install side pieces of front bumper

Model 963 with code F7A (bumper, corners made of plastic)

AR88.20-W-2002A

Model 963, 964 with code F7B (bumper, corners made of steel)

AR88.20-W-2002B

13

Install center piece of front bumper

AR88.20-W-2003A

14

Close maintenance flap

 Frame

Number

Designation

Model 963, 964

BA31.30-N-1001-01D

Frame sections to frame

M10x1.5

Nm

80

M12x1.5

Nm

95

M14x1.5

Stage 1

Nm

150

Stage 2

°

90

M16x1.5

Stage 1

Nm

225

Stage 2

°

90

M18x1.5

Stage 1

Nm

330

Stage 2

°

90