Isuzu KB P190. Manual - part 92

FRONT SUSPENSION  3C-47 

14. Install cam plate and nut then tighten lower link nut

finger-tight. 

NOTE: Apply oil to the thread. 

NOTE: Tighten the nut or bolt with the parts in the 
position shown in the illustration below. 

Buffer clearance: 29.7 mm (1.17 in) 

Torque: 186 N

⋅⋅⋅⋅m (19.0 kgf⋅⋅⋅⋅m/137 lb⋅⋅⋅⋅ft) 

NOTE: Adjust the trim height. Refer to Front End
Alignment Inspection and Adjustment in Steering
section. 

 
 

 
 

 

 
 

RTW53ASH000301

 

 

 

3C-48  FRONT SUSPENSION 

Upper Ball Joint 

Upper Ball Joint and Associated Parts 

 

 

 

 

RTW440LF001401 

Legend 

  (1) Bolt and Nut 

  (2) Upper Ball Joint 

 

 

 

  (3) Nut and Cotter Pin 

 

 

Removal 

1. Raise the vehicle and support the frame with

suitable safety stands. 

2.  Remove the speed sensor from the knuckle.  

3.  Remove upper ball joint nut and cotter pin, then

use remover 5-8840-2121-0 to remove the upper

ball joint from the knuckle. 

 

 

FRONT SUSPENSION  3C-49 

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

 
 

 

RTW340SH000401

4.  Remove bolt and nut. 

5.  Remove upper ball joint. 

Inspection and Repair 

Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are 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 new one.  

 
 

 
 
 

 

450RS023

 

 

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

then measure the preload. 

Starting torque: 1.3-3.2 N

⋅⋅⋅⋅m (0.13-0.33 kgf⋅⋅⋅⋅m/0.9-

2.4 lb

⋅⋅⋅⋅ft) 

 
 

 
 
 
 
 

 

450RS024

If the above limits specified are exceeded, replace the
ball joint assembly. 

Installation 

1.  Install upper ball joint. 

2.  Install bolt and nut, and then tighten them to the 

specified torque. 

Torque: 57 N

⋅⋅⋅⋅m (5.8 kgf⋅⋅⋅⋅m/42 lb⋅⋅⋅⋅ft) 

3.  Install nut and cotter pin, and then tighten the nut 

to the specified torque with just enough additional 

torque to align cotter pin holes. Install new cotter 

pin. 

Torque: 98 N

⋅⋅⋅⋅m (10.0 kgf⋅⋅⋅⋅m/72 lb⋅⋅⋅⋅ft) 

3C-50  FRONT SUSPENSION 

Lower Ball Joint 

Lower Ball Joint and Associated Parts 

 

 

 

 

RTW340LF001601 

Legend 

  (1) Lower Ball Joint Bolt 

  (2) Lower Ball Joint 

 

 

 

  (3) Lower Ball Joint Nut 

  (4) Nut and Cotter Pin 

 

 

Removal 

1. Raise the vehicle and support the frame with 

suitable safety stands. 

2.  Remove wheel and tire assembly. Refer to Wheel

in this section. 

3.  Remove the tie-rod end from the knuckle. Refer to

Power Steering Unit in Steering section.  

 

4. Remove the retaining ring from the front axle 

driving shaft to release the shaft from hub. Refer to 

Front Hub and Disc in Driveline/Axle section. 

5.  Support lower control arm with a jack.  

6.  Remove lower ball joint nut and cotter pin, then 

use remover 5-8840-2005-0 to remove the lower 

ball joint from the knuckle.