Isuzu KB P190. Manual — part 93

FRONT SUSPENSION 3C-51

CAUTION: Be careful not to damage the ball joint
boot.

901RW271

7. Remove lower ball joint nut.

8. Remove lower ball joint bolt.

9. Remove lower ball joint.

Inspection and Repair

Make necessary parts replacement if wear, damage,
corrosion or any other abnormal condition is found
through inspection.

• Inspect the lower end boot for damage or grease

leak. Move the ball joint as shown in the figure to

confirm its normal movement.

• Inspect screw/taper area of ball for damage.
• If any defects are found by the above inspections,

replace the ball joint assembly with a new one.

450RS026

• After moving the ball joint 4 or 5 times, attach nut

then measure the preload.

Starting torque: 2.5-6.4 N

⋅⋅⋅⋅m (0.25-0.65 kgf⋅⋅⋅⋅m/1.8-

4.7 lb

⋅⋅⋅⋅ft)

450RS024

• If the above limits specified are exceeded, replace

the ball joint assembly.

Installation

1. Install lower ball joint.

2. Install lower ball joint bolt.

3. Install lower ball joint nut and tighten it to the

specified torque.

Torque: 127 N

⋅⋅⋅⋅m (13.0 kgf⋅⋅⋅⋅m/94 lb⋅⋅⋅⋅ft)

4. Install ball joint nut, then tighten it to the specified

torque with just enough additional torque to align

cotter pin holes. Install new cotter pin.

Torque: 147 N

⋅⋅⋅⋅m (15.0 kgf⋅⋅⋅⋅m/108 lb⋅⋅⋅⋅ft)

3C-52 FRONT SUSPENSION

Bump Rubber

Bump Rubber and Associated Parts

RTW63CMF000101

Legend

(1) Bolt

(2) Bump Rubber

Removal

1. Raise the vehicle and support the frame with

suitable safety stands.

2. Remove bolt.

3. Remove bump rubber.

Inspection and Repair

Make necessary correction or replace parts if wear,
damage, corrosion or any other abnormal condition is
found through inspection.

Check the following parts:

• Bump

Rubber

Installation

1. Install bump rubber.

NOTE: Arrow points to the outer side of vehicle after
assembly to vehicle.

2. Install bolt, then tighten it to the specified torque.

Torque: 42 N

⋅⋅⋅⋅m (4.3 kgf⋅⋅⋅⋅m/31 lb⋅⋅⋅⋅ft)

FRONT SUSPENSION 3C-53

Special Tools (4

××××2 High Ride Suspension, 4××××4)

ILLUSTRATION

PART NO.

PART NAME

ILLUSTRATION

PART NO.

PART NAME

5-8840-2000-0

(J-5822)

Remover; Needle bearing

5-8840-0019-0

(J-23907)

Sliding hammer

(4×4 Model Only)

5-8840-2123-0

(J-36833)

Remover and Installer kit;

Lower arm front bushing

5-8840-2128-0

(J-36838)

Installer; Needle bearing

(4×4 Model Only)

5-8840-2124-0

(J-36834)

Remover and Installer kit;

Lower arm rear bushing

5-8840-0007-0

(J-8092)

Grip

(4×4 Model Only)

5-8840-2121-0

(J-21677-2)

Ball joint remover

5-8840-2851-0

Installer; Oil seal

(4×4 Model Only)

5-8840-2005-0

(J-29107)

Tie-rod end remover

5-8840-2307-0

(J-39376)

Installer; Upper arm

bushing

5-8840-0256-0

(J-29755)

Remover and Installer

Upper arm bushing

3C-54 FRONT SUSPENSION

TROUBLESHOOTING

1. VIBRATION, SHOCK, AND SHIMMY OF STEERING WHEEL

Checkpoint Problem

Countermeasure

Check front axle

Check wheel alignment

Check suspension ball joint

Check shock absorber or

attaching nut and bolt

Replace

Adjust

Replace

Replace or retighten

Check steering unit and

linkage

Faulty

Worn

Malfunction or loose

Check upper and lower link

bushings

Replace

Adjust

Worn

Incorrect

OK

OK

OK

NG

NG

NG

NG

NG

NG

OK

OK

Check vehicle trim height

• Improperly adjusted or worn front

wheel bearing.

• Worn or incorrectly adjusted wheel

bearing.

Replace; refer to Section 4C "Front
Wheel Drive"

• Insufficiently tightened steering

gear housing.

• Wear of steering linkage.

• Excessive backlash due to

improper adjustment of the steering
gear box.

• Worn column bearing, weakened

column bearing spring, or loose
clamp.

Replace; refer to Section 3B
"Steering"

• Improper tire pressure.

• Imbalance and deformation of frond

wheel.

• Unevenly worn tire or insufficient

tightening of wheel nuts.

Replace; refer to Section 3E "Wheel
and Tires"