Front Roof Frame Separation - Ar65.20-P-1006-02FR

Model 257, 290 

The following operation steps are to be performed on model 257 on the left side of the vehicle and must be performed analogously on the right side. Additional information can be found in the superordinate service document. The safety information in the superordinate service document must be observed.

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1. Expose inert gas welds on roof frame (1) and on roof frame console (2) and cut (areas A).
2. Expose spot welds on roof frame (1) and on roof frame console (2) and cut out (areas B).
3. Expose spot weld on roof frame (1) and drill out with ø 6.5 mm bit (area C).
4. Remove roof frame (1).
5. Expose spot welds on roof frame console (2) and cut out (area D).

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6. Heat roof frame console (2) in crosshatched area.

   Cross-hatched area is bonded.

7. Remove roof frame console (2).

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8. Sand down mating surfaces to bare metal in cross-hatched areas.

   Sand down spot weld flanges to bare metal on both sides.

9. Coat insides of spot weld flanges with zinc dust paint.

   Do not coat bonding surfaces with zinc dust paint (area E).

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.

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