Nissan X-Trail 32. Manual - part 212

REPAIRING HIGH STRENGTH STEEL

BRM-9

< PRECAUTION >

[FOR EUROPE (LHD)]

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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, because it may weaken the compo-
nent. When heating is unavoidable, never 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 sections 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 (1.97 in).

Tensile strength

Major applicable parts

980 - 1500 MPa

• Front side member rear extension

(Front floor component part) 

• Inner sill
• Lower dash crossmember

(Lower dash complete component part) 

• Lower dash crossmember
• Front bumper armature assembly
• Front side member closing plate (Rear)

(Front side member closing plate component part) 

• Front side member (Rear)

(Front side member assembly component part) 

• Inner center pillar (Upper)

(Inner center pillar assembly component part) 

• Upper center pillar brace

(Inner center pillar assembly component part) 

• Center pillar seat belt anchor

(Inner center pillar assembly component part) 

• Outer front pillar reinforcement

(Outer front pillar reinforcement component part) 

• Center pillar hinge brace (Upper)

(Lower center pillar brace component part) 

• Center pillar extension

(Lower center pillar brace component part) 

• Inner center rear bumper reinforcement

PIIA0115E

PIIA0117E

BRM-10

< PRECAUTION >

[FOR EUROPE (LHD)]

REPAIRING HIGH STRENGTH STEEL

• When welding HSS panels, use spot welding whenever possi-

ble in order to minimize weakening surrounding areas due to
heat.
If spot welding is impossible, use MIG. welding. Do not use
gas (torch) for welding because it is inferior in welding
strength.

• Spot welding on HSS panels is harder than that of an ordinary

steel panel.
Therefore, when cutting spot welds on a HSS panel, use a low
speed high torque drill (1,000 to 1,200 rpm) to increase drill bit
durability and facilitate the operation.

2.

Precautions in spot welding HSS
This work should be performed under standard working condi-
tions. Always note the following when spot welding HSS:
• The electrode tip diameter must be sized properly according to

the metal thickness.

• The panel surfaces must fit flush to each other, leaving no

gaps.

PIIA0144E

PIIA0145E

PIIA0146E

PIIA0147E

REPAIRING HIGH STRENGTH STEEL

BRM-11

< PRECAUTION >

[FOR EUROPE (LHD)]

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• Follow the specifications for the proper welding pitch.

Unit: mm (in)

Thickness (T)

Minimum pitch (L)

0.6 (0.024)
0.8 (0.031)
1.0 (0.039)
1.2 (0.047)
1.6 (0.063)
1.8 (0.071)

10 (0.39) or more
12 (0.47) or more
18 (0.71) or more
20 (0.79) or more
27 (1.06) or more
31 (1.22) or more

JSKIA0781ZZ

BRM-12

< PREPARATION >

[FOR EUROPE (LHD)]

REPAIRING MATERIAL

PREPARATION

REPAIRING MATERIAL

Foam Repair

INFOID:0000000010843418

During factory body assembly, foam insulators are installed in certain body panels and locations around the
vehicle. Use the following procedure(s) to replace any factory-installed foam insulators.

URETHANE FOAM APPLICATIONS

Use commercially available Urethane foam for sealant (foam material) repair of material used on vehicle.

Read instructions on product for fill procedures.

Example of foaming agent filling operation procedure

1.

Fill procedures after installation of service part.

a.

Eliminate foam material remaining on vehicle side.

b.

Clean area after eliminating form insulator and foam material.

c.

Install service part.

d.

Insert nozzle into hole near fill area and fill foam material or fill enough to close gap with the service part.

2.

Fill procedures before installation of service part.

a.

Eliminate foam material remaining on vehicle side.

b.

Clean area after eliminating foam insulator and foam material.

c.

Fill foam material on wheelhouse outer side.

<Urethane foam for foaming agent>

3M™ Automix™ Flexible Foam 08463 or equiva-
lent

Urethane foam

Nozzle insert hole

: Vehicle front

JSKIA0129GB