Nissan Altima L32. Manual - part 172

BRM-78

< ON-VEHICLE REPAIR >

[SEDAN]

BODY ALIGNMENT

Measurement Points

AWKIA1487GB

BODY ALIGNMENT

BRM-79

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D

E

F

G

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L

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A

B

BRM

N

O

P

Rear Body

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Measurement

ALKIA0169GB

BRM-80

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[SEDAN]

BODY ALIGNMENT

Measurement Points

SIIA2147E

PRECAUTIONS IN REPAIRING HIGH STRENGTH STEEL

BRM-81

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PRECAUTIONS IN REPAIRING HIGH STRENGTH STEEL

High Strength Steel (HSS)

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High strength steel is used for body panels in order to reduce vehicle weight.

Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:

SP130 is the most commonly used HSS.
Read the following precautions when repairing HSS:

1. Additional points to consider

• The repair of reinforcements (such as side members) by heat-

ing is not recommended since it may weaken the component.

When heating is unavoidable, do not heat HSS parts above

550

°C (1,022°F).

Verify heating temperature with a thermometer.

(Crayon-type and other similar type thermometer are appropri-

ate.)

• When straightening body panels, use caution in pulling any

HSS panel. Because HSS is very strong, pulling may cause

deformation in adjacent portions of the body. In this case,

increase the number of measuring points, and carefully pull

the HSS panel.

• When cutting HSS panels, avoid gas (torch) cutting if possible.

Instead, use a saw to avoid weakening surrounding areas due

to heat. If gas (torch) cutting is unavoidable, allow a minimum

margin of 50 mm (1.97in).

Tensile strength

Nissan/Infiniti designation

Major applicable parts

373 N/mm

2

(38kg/mm

2

,54klb/sq in)

SP130

• Front side member assembly 
• Hoodledge assembly
• Upper dash
• Front pillar reinforcement assembly
• Rear side member assembly
• Other reinforcements

PIIA0115E

PIIA0116E

PIIA0117E