939004908 - 7210E28 R.R. ROOF PANEL

Removing ( Refitting ) - 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 hammer and chisel and remove the spot welds chamfered previously.2. Grind the laser welding on both sides of the vehicle as illustrated.- Remove the part from the vehicle.
- Straighten the edges of the vehicle using a hammer and dolly block.1. Remove the spot weld residues using a disc grinder.
1. Leave a layer of sealant on the centre ribs to provide some thickness.
1. Prepare the vehicle by grinding, sanding and cleaning using a suitable solvent on the perimeter areas involved in the subsequent application of the adhesive.
ComponentTypeDescriptionClassificationQty.Validity
Roof3M Solvent3M 08984--
Refitting ( Removing ) 1. Remove the anti-corrosion treatment from the entire perimeter of the inside and outside of the replacement part using a rotary brush.2. Place suitable suction pads on the outer part of the replacement part that allow it to be moved.
1. Prepare the vehicle by grinding, sanding and cleaning using a suitable solvent on the perimeter areas of the replacement part involved in the subsequent application of the adhesive.
ComponentTypeDescriptionClassificationQty.Validity
Roof3M Solvent3M 08984--
- Prepare the adhesive cartridge following the instructions on the packaging. In order to do this, after having inserted the cartridge in the spray gun, remove the cap and check when a small amount of the product is extruded, both the basic material and the catalyzer come out of the cartridge at the same time.- Cut the top of the nozzle until the size of the opening and consequently the seam is as desired.- Secure the nozzle to the cartridge.
ComponentTypeDescriptionClassificationQty.Validity
RoofStructural adhesive3M 8115--
The recommended temperature for usage should be between 15 °C and 35 °C. The fluidity of the product varies depending on the temperature and the distribution speed will also vary as a result.At 25 °C with 50% humidity, the product can be worked with for around 90 minutes.In any case, remember that the quantity extruded should be sufficient to cover the entire surfaces of the edges to be stuck once it is spread out.
1. Working on the replacement part prepared previously, extrude a seam of sealant and then spread it evenly to construct an adhesion base and protection against corrosion.2. Proceed in the same way on the vehicle remembering to extend the application a few millimetres beyond the prepared surface in order to avoid areas that are not covered.
The product can be removed from any surface by washing with hot water within 90 minutes. Once it has dried it can be sanded using ordinary filler.
1. Then, working on the surfaces of the replacement part already treated, extrude a second (thinner) seam of sealant which has the function of providing some thickness.In this case, do not spread the extruded seam.
1. Apply a series of sections of butyl on the vehicle ribs replacing the filler sealant removed originally during the cleaning stage. Do not remove the protective paper until the fitting to prevent the seam from becoming covered in dust which would adversely affect its adhesive properties.
ComponentTypeDescriptionClassificationQty.Validity
RoofButyl seam3M 08610--
1. With the aid of suction pads, position the replacement part correctly on the vehicle.- Check the alignment and the surrounding gaps.- Using suitable self-locking clamps and belts, secure the roof to the vehicle.
In order to allow a better distribution of the load, keep the suction pads and the fastening belts as close as possible to the edge of the roof.
- Remove the excess material that comes out from the contact surfaces as a result of the pressure of the clamps, distributing it evenly to cover any possible area of bare metal.- The self-locking clamps can be removed 4 hours after the application (at 23°C and 50% UR). The stuck parts need to remain fixed for a longer period if the temperature is below 23°C and/or if the parts are tensioned. The polymerization time can be accelerated by heating the stuck part with a drier or lamps (do not exceed 120°C for 45 minutes).
1. Use a spot welder in the areas shown in the diagram.
- Correct any distortions to the panel using a mallet 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.- Proceed with the painting stage.
Removing ( Refitting )     Op. 7210E56 R.R. TAILGATE - Check that connected components are not distorted by checking the bodyshell alignment measurements using suitable equipment (gauges, templates or jigs).- Straighten the body as necessary.