2004 DAEWOO LACETTI Service Repair Manual

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Page 2505 of 2643

DAEWOO LACETTI 2004 Service Repair Manual 0–2 SERVICE NOTICENUBIRA/LACETTI
SECTION 0
SERVICE NOTICE
CONTENTS
1. HOW TO USE THIS MANUAL 0 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. SPECIAL INFORM

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DAEWOO LACETTI 2004 Service Repair Manual NUBIRA/LACETTISERVICE NOTICE 0–3
1. HOW TO USE THIS MANUAL
.
This manual covers the repairs of NUBIRA/LACETTI
automobile which has been involved in accidents, and it
describes the work related to th

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DAEWOO LACETTI 2004 Service Repair Manual 0–4 SERVICE NOTICENUBIRA/LACETTI
3. SUPPLEMENTAL RESTRAINT
SYSTEM (SRS)
.
The following precautions should be observed when
performing sheet metal work, paint work and repair work
around the locatio

Page 2508 of 2643

DAEWOO LACETTI 2004 Service Repair Manual BODY REPAIR MANUAL
(NUBIRA/LACETTI)
ISSUED BY
SERVICE ENGINEERING TEAM
GM DAEWOO AUTO & TECHNOLOGY CO., LTD.
199–1 CHONG CHON–DONG, PU PYUNG–GU,
INCHON, KOREA
TELEPHONE : 82–32–520–2737,2

Page 2509 of 2643

DAEWOO LACETTI 2004 Service Repair Manual NUBIRA/LACETTIGENERAL INFORMATION 1–1
SECTION 1
GENERAL INFORMATION
CONTENTS
1. GENERAL INSTRUCTION 1 – 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. I

Page 2510 of 2643

DAEWOO LACETTI 2004 Service Repair Manual 1–2 GENERAL INFORMATIONNUBIRA/LACETTI
1. GENERAL INSTRUCTION
This publication is designed to help you the body repair
technician with your specialized work. Vehicle bodywork
has changed a great deal

1–2 GENERAL INFORMATIONNUBIRA/LACETTI
1. 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:
S strength and safety ; low weight
S spaciousness ; good aerodynamices
S high quality ; low price
.
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 ex-
pects it to be expertly repaired to the same quality stan-
dards.
.
At the same time, for his safety, the customer expects
you to have comprehensive knowledge of materials,
measuring and straightening methods, possible distor-
tion, optimum corrosion prevention and much more be-
sides.
.
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.
2. IMPORTANT SAFETY NOTICE
2–1. BEFORE BEGINNING WORK
S Disconnect the battery to reduce the possibility of fire
caused by electrical shorts.
S Check for fuel leaks and repair as necessary.
S Remove the fuel tank and/or fuel lines if welding equip-
ment is to be used near the fuel system.
S Before welding, sanding or cutting, protect carpets and
seats with fire–proof covers.
S Follow standard safety practices when using toxic or
flammable liquids.
S Use standard safety equipment when spraying paint,
welding, cutting, sanding or grinding. Standard safety
equipment includes.
S Respirator and filter masks: Designed to filter out toxic
fumes, mist, dust or other airborn particles. Use a respi-
rator or filter mask designed to protect you from the haz-
ards of the particular job; some respirators, for example,
are designed to filter out only dust and airborn particles,
not toxic fumes.
S Safety goggles or glasses: Designed to protect your
eyes from projectiles, dust particles or splashing liquid.
S Gloves: Rubber gloves protect against corrosive chemi-
cals. Welding gloves protect against burns and abra-
sions caused by welding, sanding or grinding.
S Safety shoes: Non–slip soles protect against slipping.
Metal toe inserts protect against falling objects.
S Ear plugs: Protect eardrums from harmful noise levels.
.
2–2. DURING WORK
S Do not smoke while working near the fuel system.
S Deposit gas or solvent–soaked shop towels in an ap-
proved container.
S Brake lining contains asbestos, which can cause cancer.
Do not use an air hose to blow off brake assemblies: use
only an approved vacuum cleaner, and wear an ap-
proved filter mask or respirator.
S Always attach a safety cable when using a hydraulic ram
or a frame straightening table: do not stand in direct line
with the chains used on such equipment.

Page 2511 of 2643

DAEWOO LACETTI 2004 Service Repair Manual NUBIRA/LACETTIGENERAL INFORMATION 1–3
3. BODY SAFETY
Modern stressed–skin bodies are designed so as to
have a sturdy passenger cell protected by front and rear
crumple zones.
S In an accident the

NUBIRA/LACETTIGENERAL INFORMATION 1–3
3. BODY SAFETY
Modern stressed–skin bodies are designed so as to
have a sturdy passenger cell protected by front and rear
crumple zones.
S In an accident the crumple zones are designed to con-
vert impact energy into deformation work.
S The shape, material and metal thickness must all be pre-
cisely matched.
Fig. 1 Body Shell
S Many years of experience, refined computational meth-
ods and expensive series of crash tests mean that GM
DAEWOO now builds bodies giving optimum deforma-
tion in the crumple zones in frontal or rear impacts.
Fig. 2 Crumple Zones
When repairing body damage, it is therefore imperative
to restore the original structure and strength in order to
guarantee the safety of the occupants.
4. LOADS ON BODY PARTS
S The earlier practice of making a distinction between load
bearing and non–loading bearing parts of vehicles with
a chassis and body is no longer justified now. Every part,
even the windows, contributes to the overall strength of
the vehicle.
.
Therefore, with modern GM DAEWOO bodies, one
talks of highly stressed and less highly stressed parts.
.
.
5. USE OF NEW HIGH–QUALITY
MATERIALS
S The requirement for reduced body weight has lead to a
reduction in the amount of steel used, e.g. through the
use of thinner sheet steels. This has been achieved with
HIGH STRENGTH SHEET STEELS, in spite of the
need to meet higher body strength requirements at the
same time. High strength steels have a tensile strength
and a yield strength as much as 30% higher than con-
ventional steel. These properties must not be destroyed
when carrying out repairs, e.g. by using excessive heat.
.
.
6. CORROSION PROTECTION
S The durability of the bodywork, its associated long–term
safety and retention of value largely depend on the cor-
rosion protection given to the sheet metal. Here, GM
DAEWOO takes a great deal of care in production.
S Therefore, this corrosion protection must be preserved
or restored when repairs are carried out.

Page 2512 of 2643

DAEWOO LACETTI 2004 Service Repair Manual 1–4 GENERAL INFORMATIONNUBIRA/LACETTI
7. SUMMARY
S All GM DAEWOO vehicles are built to the highest stan-
dards in terms of styling and material properties.
S These high quality standards must be ma

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