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GENERAL INFORMATION

GENERAL INSTRUCTION

This publication is designed to help you the body repair technician with your specialized work. Vehicle bodywork has changed a great deal over the years. As vehicles have developed technically, vehicle bodywork has also had to meet new requirements with design, changes to reconcile apparently conflicting demands to name just a few examples:
The durability and ease of repair of the bodywork also plays an important part.
Nowadays, the use of highly automated production equipment makes it possible to maintain the tightest tolerances and thus ensure a high level of quality.
When bodywork is damaged, the customer rightly expects it to be expertly repaired to the same quality standards.
At the same time, for his safety, the customer expects you to have comprehensive knowledge of materials, measuring and straightening methods, possible distortion, optimum corrosion prevention and much more besides.
This publication is designed to help you update your knowledge and give you an idea of what you require to rectify moderate or severe accident damage, for your own safety and for the satisfaction of your customers.

IMPORTANT SAFETY NOTICE

BEFORE BEGINNING WORK

DURING WORK

BODY SAFETY

Modern stressed-skin bodies are designed so as to have a sturdy passenger cell protected by front and rear crumple zones.

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When repairing body damage, it is therefore imperative to restore the original structure and strength in order to guarantee the safety of the occupants.

LOADS ON BODY PARTS

Therefore, with modern DAEWOO bodies, one talks of highly stressed and less highly stressed parts.

USE OF NEW HIGH-QUALITY MATERIALS

CORROSION PROTECTION

SUMMARY

ZINC TREATED STEEL PLATE REPAIR

The zinc plated steel plate used in some panels of the EVANDA requires different repair techniques than ordinary steel plate.

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  1. Before spot welding the zinc plated steel plate, remove the paint from both sides of the flange to be welded. Apply sealer to the flange after welding.
  2. Caution : To prevent eye injury, wear goggles or safety glasses whenever sanding, cutting or grinding.

    Note : Seal the sanded surfaces thoroughly to prevent rust.
  3. The electric continuity properties of zinc plated steel plate is different from ordinary steel plate. When spot welding, increase the current by 10-20%, or increase the resistance welding time.
  4. Increase the number of weld spots by 10-20% also.
  5. Note : The MIG welding procedures for zinc plated steel plate are the same as for ordinary steel plate.

    Caution : To prevent eye injury and burns when welding, wear an approved welding helmet, gloves and safety shoes.

  6. Before applying putty or body filler to the zinc plated steel plate, sand the zinc plating thoroughly to promote adhesion and prevent blistering.
  7. Note : Use only epoxy-based putties and fillers on zinc plated steel plate.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

NOTICE :The following precautions should be observed when performing sheet metal work, paint work and repair work around the locations of the SRS parts.
  1. SDM(Sensing and Diagnosis Module) are located under the console ass'y. Avoid strong impact with ass'y hammer or other tools when repairing the front side frame and the lower part of the dashboard. Do not apply heat to these areas with a gas burner, etc.
  2. SRS harness is located under the lower part of the dashboard below the dashboard panel. (SRS harness is covered with a yellow corrugated tube.) Care should be taken not to damage the harness is covered with a yellow corrugated tube.) Care should be taken not to damage the harness when reparing this area.
  3. Do not apply heat of more than 80°C(176°F) when drying painted surfaces anywhere around the locations of SRS parts.
  4. If strong impact or high temperature needs to be applied to the areas around the locations of SRS parts, remove the part before performing repair work.
  5. If any of the SRS related parts is damaged or deformed, be sure to replace it.
  6. Note : Refer to the Service Manual(Supplimental Restraint System) for removal and replacement of SRS related parts.

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TECHNICAL ILLUSTRATION


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BODY REPAIR PROCEDURES

No.
Operation
Procedure
Remarks
1
Inspection
Inspect the damaged parts and the extent of damage and make plans for the repair.
.
2
Preparation
Prepare the new parts, special repair tools and others.
.
3
Removal
Remove the related parts for repair.
.
4
Pull out
Roughly pull out and straighten the damaged areas.
.
5
Cut and pry off
Cut off the damaged areas and drills on the spot weld nuggets and pry off the remaining spot weld flanges.
.
6
Peel off
Peel off the undercoat and sealer.
.
7
Molding
Mold damaged areas and even out the welding flanges and fill any holes.
.
8
Set the new parts
Grind both sides of the welding section and set the new parts and tack welds for temporary installation.
.
9
Inspection
Inspect the dimensions for correct position and preinstall the exterior parts and check the clearances and level differences.
.
10
Welding
Perform a trial welding and the main welding.
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11
Finish
Finish the welding areas and even out the flanges for a close fit.
.
12
Sealing
Apply the sealer to the matching and over lapped surface.
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13
Undercoating
Apply the undercoat to the required areas.
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14
Painting
Apply the paint.
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15
Deadner
Apply the deadner to the designated areas.
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16
Anti-rust agents
Coating the anti-rust agents to the designated areas.
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17
Installation
Install the related parts and rub in grease to the moving parts and replenish the cooling liquid, oil, aircon gas and others.
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18
Check and adjust
Check all operations, wheel alignments, leaks, head lamp aim and others with the specified check sheet.
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