Rear Longitudinal Member Section Preparation - Ar64.20-P-1260-02MFF

Model 177.0 

with code U54 (Compound-link axle) 

except code U55 (Multi-link axle) 

Model 177.1/9 

with code U54 (Compound-link axle) 

except code U55 (Multi-link axle) 

Model 247.0/6/7 

with code U54 (Compound-link axle) 

except code U55 (Multi-link axle) 

The following operation steps are shown on the left side of the vehicle. In case of damage on the right side of the vehicle, these steps must be performed analogously.

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

1. Grind mating surfaces at longitudinal member (2) down to bare metal in cross-hatched areas.

   Grind spot weld flange down to bare metal on both sides (area A).

   Observe preliminary treatment of bonding surface.

2. Remove grinding dust.

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3. Drill off rivets on spring mount (2.1) with a 6.5 mm diameter bit (areas A₂ ).
4. Remove spring mount (2.1).

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5. Longitudinal member (2) (areas A₃ ).
6. Surface-grind plug spot welds on longitudinal member (2) (areas A₃ ).

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7. Grind mating surfaces on spring mount (2.1) down to bare metal in cross-hatched areas on inside.
8. Remove grinding dust.

   Observe preliminary treatment of bonding surface.

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9. Mark and cut separating point at left rear-end floor (1) (area B).

   Transfer separation point from vehicle.

10. Grind mating surfaces at left rear-end floor (1) down to bare metal in cross-hatched areas.

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11. Grind mating surfaces at left rear-end floor (1) down to bare metal in cross-hatched areas.

    Grind spot weld flanges down to bare metal on both sides (areas C₁ and C₂ ).

12. Grind mating surfaces at left rear-end floor (1) down to bare metal on both sides in cross-hatched areas (areas C₁ and C₂ ).
13. Remove grinding dust and drill chips.

    Observe preliminary treatment of bonding surface.

14. Apply zinc dust paint to insides of spot weld flanges (areas C₁ and C₂ ).

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