Welding vehicle frame

AR31.30-W-0020A

Welding vehicle frame

21.10.11

6.5.09

"Tightening torque" added.

Operation step 6

*BA31.30-N-1001-01A



General information on body repair

AH60.00-N-0001-01A



Notes on drilling side rails

AH31.30-N-0003-01A



General notes on welding

AH60.00-N-0005-01A

1

Expose the repair point and support the vehicle frame with stands in front of and behind the crack

2

Remove rivets from auxiliary frame (3) in the area of the repair point

 Installation: The rivets are to be replaced with flange bolts M16 (10.9).



*BA31.30-N-1002-01A

3

Make a cut in the upper flange of the auxiliary frame (3)

 Approx. 600 mm in front of the crack.

Angle grinder
gotis://K_58.1_07.0

4

Heat the auxiliary frame (3) at the cut and bend away 45°

 Heat to Approx.. 550 °C (brown/red) with soft flame.

5

Weld the crack (1) in the frame side member (2) and auxiliary frame (3)

AR31.30-W-0020-01A

Inert gas welder (steel, brazing. aluminum)
gotis://K_60-65_17

Drill
gotis://K_58.1_04.0

Straight grinder
gotis://K_58.0_03.0

Angle grinder
gotis://K_58.1_07.0

6

Install reinforcements

 Reinforcements from the current replacement part documentation.

If no reinforcements from the current replacement part documentation are available:



Install shop-made reinforcements.

AR31.30-W-0035-01A



*BA31.30-N-1001-01A



*BA31.30-N-1002-01A



Notes on reinforcing vehicle frame

AH31.30-N-0007-01A

7

Heat auxiliary frame (3) at the cut and bend back to its original position

8

Weld the cut in the auxiliary frame

Inert gas welder (steel, brazing. aluminum)
gotis://K_60-65_17

9

Paint repaired section in frame color

10

Reinstall detached parts

Number

Designation

Model 374.5/6

Model
374.4,
375.1, 958.0, 970, 972, 974, 975, 976

Model 375.3, 950, 952, 953, 954,
958.2

BA31.30-N-1001-01A

Bolt with flange for HuckSpin connection

M141.5

Stage 1

Nm

-

-

150

Stage 2

°

-

-

90

M161.5

Stage 1

Nm

-

-

225

Stage 2

°

-

-

90

BA31.30-N-1002-01A

Bolt, frame sections to frame

M101.5

Nm

-

80

-

M121.5

Nm

95

95

95

M141.5

Stage 1

Nm

150

150

150

Stage 2

°

90

90

90

M161.5

Stage 1

Nm

225

225

225

Stage 2

°

90

90

90

M181.5

Stage 1

Nm

330

330

330

Stage 2

°

90

90

90

Number

Designation

Model 375.4, 940, 942, 943, 944, 958.4

Model
930, 932, 933, 934

Model 949

BA31.30-N-1001-01A

Bolt with flange for HuckSpin connection

M141.5

Stage 1

Nm

-

-

150

Stage 2

°

-

-

90

M161.5

Stage 1

Nm

-

-

225

Stage 2

°

-

-

90

BA31.30-N-1002-01A

Bolt, frame sections to frame

M101.5

Nm

-

-

-

M121.5

Nm

95

95

95

M141.5

Stage 1

Nm

150

150

150

Stage 2

°

90

90

90

M161.5

Stage 1

Nm

225

225

225

Stage 2

°

90

90

90

M181.5

Stage 1

Nm

330

330

330

Stage 2

°

90

90

90

Number

Designation

Model 957

BA31.30-N-1001-01A

Bolt with flange for HuckSpin connection

M141.5

Stage 1

Nm

150

Stage 2

°

90

M161.5

Stage 1

Nm

225

Stage 2

°

90

BA31.30-N-1002-01A

Bolt, frame sections to frame

M101.5

Nm

-

M121.5

Nm

95

M141.5

Stage 1

Nm

150

Stage 2

°

90

M161.5

Stage 1

Nm

225

Stage 2

°

90

M181.5

Stage 1

Nm

330

Stage 2

°

90