939011421 - 7210B51 R R UPPER CHANNEL STIFFENER, (ONE) LH OR RH

Removing ( Refitting )     Op. 7210E52 R.R. REAR WING - Check that the components connected are not distorted by checking the bodyshell alignment measurements using suitable equipment (gauges, templates or jigs).- Straighten the body as necessary.
- Use a rotary brush to remove the paint to gain access to the spot welds.1. Use the chamfering machine to remove the spot welds shown in the diagram.- Use the drill and chamfer the spot welds not accessible with the chamfering machine.- Use the hammer and chisel and remove the spot welds chamfered previously.- Remove the part.
- Straighten the edges of the vehicle using a hammer and dolly block.- Remove the spot weld residues using a disc grinder.- Use a rotary brush to clean the areas treated previously.1. Apply electro-galvanizing paint.
1. Remove the anti-corrosion treatment from the entire perimeter of the inside and outside of the replacement part using a rotary brush.2. Drill the part at the points shown using a drill.- Apply electro-weldable paint to the edges involved.
Refitting ( Removing ) 1. Position the replacement part correctly on the vehicle and secure it using self-locking clamps.- Check the alignment and the surrounding gaps.2. Use a spot welder in the areas shown in the diagram.3. Use a MIG welder and weld the openings made previously in the replacement part.
- Correct any distortions to the panel using a hammer and dolly block.1. Use a disc grinder to level the welds.- Use a rotary brush to clean the areas welded previously.
1. Apply anti-oxidant protection to the areas involved in the welding- Seal the join lines between the replacement part and the vehicle.
    Op. 7210E52 R.R. REAR WING