Nissan Pathfinder. Manual — part 269
REPAIRING HIGH STRENGTH STEEL
BRM-9
< PRECAUTION >
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• 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 (1.97 in).
• 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.
• The spot weld on HSS panels is harder than that of an ordi-
nary 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.
PIIA0116E
PIIA0117E
JSKIA0082GB
PIIA0145E
BRM-10
< PRECAUTION >
REPAIRING HIGH STRENGTH STEEL
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.
• Follow the specifications for the proper welding pitch.
Unit: mm (in)
Handling of Ultra High Strength Steel Plate Parts
INFOID:0000000009176367
PROHIBITION OF CUT AND CONNECTION
Do not cut and join the lower lock pillar reinforcement (center pillar reinforcement inside frame parts) because
its material is high strength steel plate (ultra high strength steel plate).
The center pillar reinforcement must be replaced if this part is damaged.
PIIA0146E
PIIA0147E
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 over
12 (0.47) or over
18 (0.71) or over
20 (0.79) or over
27 (1.06) or over
31 (1.22) or over
JSKIA0781ZZ
REPAIRING MATERIAL
BRM-11
< PREPARATION >
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PREPARATION
REPAIRING MATERIAL
Foam Repair
INFOID:0000000009176368
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 with enough foam material on the wheelhouse outer side to close the gap with the service part while
avoiding the flange area.
d. Install service part.
NOTE:
Refer to the label on the urethane foam container for information
on working times.
<Urethane foam for foaming agent>
3M™ Automix™ Flexible Foam 08463 or equiva-
lent
1. Urethane foam
A. Nozzle insert hole
Front
1.
Urethane foam
A.
Fill while avoiding flange area
Front
JSKIA0129GB
JSKIA0130GB
BRM-12
< PREPARATION >
BODY COMPONENT PARTS
BODY COMPONENT PARTS
Underbody Component Parts
INFOID:0000000009176369
FLOOR AND UNDERBODY
ALKIA2385ZZ
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