7210E28 R.R. ROOF PANEL - Alfa - 156 - eLearn

3239048 - 7210E28 R.R. ROOF PANEL

) Check if any of the connected parts are deformed by checking body alignment dimensions. Use appropriate measurement tools (reference rigs, templates or gauges).Straighten the body if necessary.

1. Use a vibrating cutter with suitable blade to cut the sealant (1a) between reinforcements (1b) of roof panel (1c).2. Use a cutter to remove sealant (2a) on wing pillars (2b).3. Remove the paint from around the edge of the roof panel using a rotary brush to reveal weld spots.

1. Use a chamfering machine to crop weld spots.2. Use an oxyacetylene torch and steel brush to unweld the braze welds at the corners of the roof.Use a chisel and hammer to remove spots ground previously.3. Remove the roof panel from the car.

1. Straighten the roof panel seat flaps using a mallet and profiled stake.Use a grinding wheel to remove the weld spot residues.Use a rotary brush to clean treated areas.Apply the electric weld paint finish.

Refitting ( Removing

) 1. Use a rotary brush to remove the corrosion-proof treatment from around the inner and outer edges of the part.Apply the electric weld paint finish to the affected parts.

Reapply the seal between roof panel and reinforcements.

1. Fit the part correctly using self-locking clips.2. Fit front doors (2a) and rear doors (2b).Check alignment and gaps around the edges.Use a sliding gauge to check windscreen compartment and back window compartment diagonals.3. Carry out some spot welds on the roof panel.Remove the front and rear doors.

1. Use a spot welder to weld the roof in the area of the windscreen frame (1a) and rear window frame (1b).2. Use a spot welder to weld the roof panel in the area of right side panel (2a) and left side panel (2b).3. Use an oxyacetylene torch to hard-solder the roof panel corners.

Correct any deformations in the panel using a profiled stake and mallet.1. Use a grinding wheel to level the braze welds in the areas shown in the figure.2. Use a rotary brush to clean the newly-welded areas.

1. Apply rust-proofing to newly-welded areas.2. Apply sealant to the areas indicated in the figure.Apply paint.Apply wax.