Rear Roof Frame Removal - Ar65.20-P-1008-01FRX

Model 290 

The higher-level service document as well as the safety information in the service document must be observed.

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1. Expose spot welds on rear roof frame (1) and cut out (areas A).

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2. Expose spot welds on rear roof frame (1) on inside and cut off (areas B).
3. Expose weld seams on rear roof frame (1) and cut (areas C).

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4. Expose weld seams on rear roof frame (1) and cut (areas D).

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5. Heat rear roof frame (1) in crosshatched areas.

   Cross-hatched areas are bonded with adhesive.

6. Remove rear roof frame (1).

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

   Sand down spot weld flanges to bare metal on both sides. Grind weld seams (areas E) down to bare metal from inside.

8. Remove grinding dust and drill chips.
9. Coat insides of spot weld flanges with zinc dust paint.

   Do not coat bonding surfaces with zinc dust (areas F).

   Weld seams may not be coated with zinc dust paint (areas E).

   Otherwise adhesion problems may occur.

   Observe pretreatment of bonding surfaces.