Replace longitudinal member closing section

AR62.20-P-1267RC

Replace longitudinal member closing section

15.07.2019

Model

452.3/4

Longitudinal member end section

1

Longitudinal member end section

2

Welding flange

3

Welding points

4

Welding edge

5

Welding area

2

Welding flange

4

Welding edge

7

Spot weld pitches

8

Continuous weld



Remove

 Danger

The high voltage used for electric welding presents a lethal hazard. Risk of explosion from welding in areas close to highly inflammable materials. Risk of injury from weld splatter and UV-light when welding. Risk of poisoning from inhaling welding gases

Use insulating mats. Wear protective clothing, safety glasses and a protective mask. Remove highly inflammable materials from the hazard area. Use air extraction system.

AS00.00-Z-0007-01A

Topical note

Measures for preventing damage to vehicles or components when performing electric welding work

AH00.00-N-0005-01A

Topical note

General information on body repair

AH60.00-N-0001-01A

Topical note

Notes on performing repair, body work and welding on vehicles with airbags and RTE units

AH91.00-P-0002-01M

Notes on replacing body parts

AH60.00-P-0027-01FF

1

Disconnect battery ground line

AR54.10-P-0003RR

2

Place body on straightening bench

 Only perform welding on front longitudinal member where vehicles are screwed onto straightening bench, as a dimensionally accurate welding is otherwise not possible.
Possible deviations and tolerances can no longer be eliminated by adjusting the toe-in. The straightening bench and straightening set of the companies Celette, Car Bench, Car-O-Liner or Blackhawk can be optionally used.

3

Drill out spot welds (3) at welding flange (2)

4

Remove longitudinal member end section (1)



Install

5

Smooth welding edges, remove paint in welding area (5) of separating point

6

Apply primer to bare welding area (5) in repair area

Zinc dust paint suitable for spot welding

*BR00.45-Z-1001-07A

7

Prepare welding edges

8

Remove protective paint at welding areas of new longitudinal member end section (1) and apply primer to bare welding areas

Zinc dust paint suitable for spot welding

*BR00.45-Z-1001-07A

9

Punch welding flange (2) with hole punching pliers at specified spot weld pitches (7)

Not in case of resistance spot welding.

10

Weld in longitudinal member end section (1) in inert gas and/or resistance spot welding method at specified spot weld pitches (7)

11

Slightly smooth spot welds and unevennesses

12

Clean repair areas with wire brush and then apply primer

13

Supplement standard sealants with body sealant

White sealing compound, 310 ml, DBL 6069.20

*BR00.45-Z-1003-01A

14

Paint repair area adjacent surfaces

Topical note

Notes on paintwork repairs

AH98.00-P-9408-02MCC

15

Add cavity preserving agent

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-07A

Zinc dust paint suitable for spot welding

A 000 986 34 42

BR00.45-Z-1003-01A

White sealing compound, 310 ml, DBL 6069.20

A 001 989 63 20