2007 ISUZU KB P190 Workshop Repair Manual

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Page 249 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 2 2
×
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4
×
××
×
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F
R O NT ALIG NM EN T 3A -1
SECTIO N 3A
FRONT ALIGNMENT
TABLE OF CONTENTS
Front End A lignment Inspection and A dju st ment ......................

Page 250 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 3A-2 FRONT ALIGNMENT

Front End Alignment Inspection and
Adjustment
General Description
“Front End Alignment” refers to the angular relationship
between the front wheels, the front suspens

3A-2 FRONT ALIGNMENT

Front End Alignment Inspection and
Adjustment
General Description
“Front End Alignment” refers to the angular relationship
between the front wheels, the front suspension attaching parts
and the ground.
Proper front end alignment must be maintained in order to
insure efficient steering, good directional stability and to
prevent abnormal tire wear.
The most important factors of front end alignment are wheel
toe-in, wheel camber and axle caster.

Camber:
This illustration shows a view from the front of the vehicle.
Camber is the vertical tilting inward or outward of the front
wheels. W hen the wheels tilt outward at the top, the camber is
positive (+). W hen the wheels tilt inward at the top, the camber
is negative (-). The amount of tilt measured in degrees from
the vertical is called the camber angle (1). If camber is extreme
or unequal between the wheels, improper steering and
excessive tire wear will result. Negative camber causes wear
on the inside of the tire, while positive camber causes wear to
the outside.

Caster:
This illustration shows a view from the side of the vehicle.
Caster (1) is the vertical tilting of the wheel axis either
forward or backward (when viewed from the side of the
vehicle). A backward tilt is positive (+) and a forward tilt is
negative (-). On the short and long arm type suspension
you cannot see a caster angle without a special instrument, but
if you look straight down from the top of the upper control arm
to the ground, the ball joints do not line up (fore and aft) when
a caster angle other than 0 degrees is present. W ith a positive
angle, the lower ball joint would be slightly ahead (toward the
front of the vehicle) of the upper ball joint center line.

Toe-in:
This illustration shows a view from the top of the vehicle.
Toe-in is the measured amount the front wheels are turned in.
The actual amount of toe-in is normally a fraction of a degree.
Toe-in is measured from the center of the tire treads or from
the inside of the tires. The purpose of toe-in is to insure parallel
rolling of the front wheels and to offset any small deflections of
the wheel support system which occurs when the vehicle is
rolling forward. Incorrect toe-in results in excessive toe-in and
unstable steering. Toe-in is the last alignment to be set in
the front end alignment procedure.

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TO MODEL INDEX
ISUZU KB P190 2007

Page 251 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FRONT ALIGNMENT 3A-3

Inspection
Before making any adjustments affecting caster, camber or
toe-in, the following front end inspection should be made.
1. Inspect the tires for proper inflatio

Page 252 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 3A-4 FRONT ALIGNMENT
Alignment for 4×
××
×
2 (except High Ride Suspension)
Caster and camber adjustment
The lower links of the 4 X2 vehicle front suspension have an adjusting cam at either end

Page 253 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FRONT ALIGNMENT 3A-5
The following illustration shows the alignment procedure.
RTW 340LF000401

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TO MODEL INDEX
ISUZU KB P190 2007

Page 254 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 3A-6 FRONT ALIGNMENT
Example
Measured value
Camber angle 1 °10 Caster angle 3 °10
Standard value
Camber angle 0 °±30 Caster angle 3 °35 ±45

RTW 340SH001001
1. Mark an

Page 255 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FRONT ALIGNMENT 3A-7

CASTER
3
°35 ±45
Note:
Left and right side to be equal within 30

CAMBER
0 °± 30
Note:
Left and right side to be equal within 30

KING PIN INCLINATION

Page 256 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 3A-8 FRONT ALIGNMENT

Toe-in Adjustment
Measurement should be taken with the vehicle on a surface
plate.
If a surface plate is not available, toe-in should be checked
with the vehicle

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