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13.5. Front bumper

Knots of forward and back bumpers
1 – front bumper,
2 – level,
3 – fog light,
5 – amplifier,
 6 – holder,
7 – rear bumper,
8 – level

Removal

PERFORMANCE ORDER
1. Working under the bumper basis, to unscrew three screws of the lower fastening of a bumper.
2. Working at one party of the car, to unscrew three screws of fastening of an outer edge of an insert of an arch of a wheel, then to move an insert back from a bumper.
3. To unscrew two nuts of fastening of a forward part of a bumper.
4. To unscrew the bolt fixing a side part of a bumper to a wing.
5. On other party of the car to unscrew two nuts of fastening of a forward part of a bumper and the bolt fixing a side part of a bumper to a wing.
6. To pull a bumper forward (two persons), to disconnect wires from fog lights and a hose of a washer of headlights, paying attention not to scratch the varnished surface of wings.
7. To remove a bumper from the car.

Installation

PERFORMANCE ORDER
1. To establish a bumper on the appropriate place, without fixing it.
2. Before fixing of all knot to adjust a bumper to other elements of a body.
3. During movement along the stacked road to check whether there is no excessive fluctuation of a bumper.

Repair of a bumper

Bumpers are made of polypropylene therefore they can be repaired, melting material by means of the device giving hot air.

PERFORMANCE ORDER
1. For repair simplification, and also for avoidance of damage of other elements of a body it is necessary to remove a bumper.
2. Soft solvent to clear parts which will be subjected to welding.
3. To put to each other parts which have to be subjected to welding and hold them by means of a vice and the motionless holder.
4. If the bumper is deformed, perform the following operations.
5. To soften a bumper by means of hot air, without allowing material to melt.
6. To put a bumper to a special form for giving of an initial form to it.
7. To wait 10 minutes until the bumper cools down.

Welding

PERFORMANCE ORDER
1. To put on a small tip the gun of supply of hot air.
2. To direct the gun to places which have to be welded.
3. To move the gun with the continuous movement so that to cause material fusion.
Prevention

For welding it is necessary to use a thin core from the same material, as the bumper (taken from an old bumper).

The core should be put at right angle to a welding seam.

It is necessary to weld ahead and behind the place of damage.

To make welding on damage inside.
4. To remove the roughnesses of a surface which arose in the course of welding.
5. An emery paper granularity 150 to smooth out the repaired surface, and then to polish it with an emery paper granularity 600 with water use.