Prepare A-Pillar Outer Section For Installation - Ar63.20-P-1102-02SR

MODEL 453.3 

1. Expose spot welds on section (5.1) and cut out (area W).
   Fig 1: Identifying Area W

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2. Remove A-pillar inner section (5) from section (5.1).
3. Grind mating surfaces on A-pillar inner section (5) down to bare metal in crosshatched areas.

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

4. Coat insides of spot weld flanges with zinc dust paint.
5. Grind mating surfaces down to bare metal on A-pillar outer section (1) in the crosshatched areas.

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

6. Coat insides of spot weld flanges with zinc dust paint.
   Fig 2: Zinc Dust Paint Locations

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7. Grind mating surfaces on A-pillar outer section reinforcement (4) down to bare metal in crosshatched areas.

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

8. Remove shavings using wet/dry vacuum cleaner.
9. Coat insides of spot weld flanges with zinc dust paint.

   Do not coat bonding surfaces with zinc dust paint (area N). Otherwise adhesion problems may occur.

   Courtesy of MERCEDES-BENZ USA

10. Grind mating surfaces on longitudinal member outer shell on entry (3) down to bare metal in crosshatched areas.

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

11. Remove shavings using wet/dry vacuum cleaner.
12. Coat insides of spot weld flanges with zinc dust paint.

    Do not coat bonding surfaces with zinc dust paint (area O). Otherwise adhesion problems may occur.

    Fig 3: Identifying Area O

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13. Assemble A-pillar outer section (1), longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4), fit and fix in place.
14. Mark position of longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4) to one another.

    Components must be assembled in removed state.

15. Disassemble A-pillar outer section (1), longitudinal member outer shell on entry (3) and A- pillar outer section reinforcement (4).
16. Apply 2-component adhesive in areas N and O on longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4).

    Observe pretreatment of bonding surfaces. Observe manufacturer's specifications for drying and processing time of adhesive.

17. Longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4) (areas P ₁ , P ₂ and P₃ ).
    Fig 4: Locating Areas P 1, P 2 and P3

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18. Assemble A-pillar outer section (1), longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4), fit and fix in place.
19. Mark position of A-pillar outer section (1) and longitudinal member outer shell on entry (3) to one another.

    Components must be assembled in removed state.

20. Drill dia. 6.7 mm rivet holes A-pillar outer section (1), longitudinal member outer shell on entry (3) (areas Q ₁ and Q ₂ ).
    Fig 5: Locating Areas Q 1 and Q 2

    Courtesy of MERCEDES-BENZ USA
21. Deburr rivet holes on A-pillar outer section (1) and longitudinal member outer shell on entry (3) on both sides.
    Fig 6: Locating Rivet Holes On A-Pillar

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22. Rivet A-pillar outer section (1) and longitudinal member outer shell on entry (3) with 6.5 x 12.5 blind rivets (areas R and S).
23. A-pillar outer section (1), longitudinal member outer shell on entry (3) and A-pillar outer section reinforcement (4) (areas T, U ₁ and U₂ ).