Isuzu KB P190. Manual — part 143

4C1-68 FRONT WHEEL DRIVE

5. WANDERS AND PULLS

Checkpoint

Trouble

Cause

Countermeasure

Adjust the wheel bearing

preload

Too tight

NG

Adjust the front alignment

Front alignment

Incorrect

Tighten or replace

Steering unit

Loose or worn

NG

NG

OK

OK

Tighten or replace

Replace or adjust the inflation

Suspension

Front or rear suspension parts

loose or broken

Tire

Worn or improperly inflated

NG

NG

OK

OK

Wheel bearing preload

FRONT WHEEL DRIVE 4C1-69

6. FRONT WHEEL SHIMMY

Checkpoint

Trouble

Cause

Countermeasure

Ball joint or bush

Replace the ball joint or bush

Worn

Front alignment

Adjust the front alignment

Adjust or replace

Incorrect

Worn or improperly adjusted

OK

OK

NG

NG

NG

OK

Wheel bearing

Tighten or replace

Loose or worn

NG

Shock absorber

Replace the shock absorber

Worn

Tire

Replace or adjust the inflation

Worn or improperly inflated

OK

NG

NG

OK

Steering unit

4C1-70 FRONT WHEEL DRIVE

PROPELLER SHAFT

1. NOISE

Checkpoint

Trouble

Cause

Countermeasure

Spider bearing

Replace

Worn or jammed

Replace

Damaged or worn

NG

NG

OK

Yoke spline

2. VIBRATION

Shaft balance

Adjust

Unbalance

Replace

Incorrect

NG

NG

OK

Shaft runout

Transmission rear housing

bushing, transfer case

housing bushing

Replace

Worn

NG

OK

Yoke spline

Replace

Jammed

NG

OK

FRONT WHEEL DRIVE 4C1-71

SPECIAL SERVICE TOOL

ILLUSTRATION

PART NO.

PART NAME

5-8840-2309-0

Ft axle mount bushing installer & remover

5-8840-2745-0 Pliers

5-8840-00

13-0

(J-22888)

Side bearing remover

9-852

1-1743-0

(J-8

107-2)

Side bearing plug adapter

5-8840-0

133-0

(J-86

14-01)

Pinion flange holder

9-852

1-5032-0

Final pinion spindle

5-8840-00

15-0

(J-229

12-01)

Separator

9-8522-

1141-0

(J-24256)

Outer bearing outer race installer

5-8840-0007-0

(J-8092)

Grip