Isuzu KB P190. Manual — part 118

4B-28 REAR AXLE

4. Place the shim on the drive pinion, then install the

inner bearing onto the pinion by using installer 9-

8522-1165-0 and a press.

Note:
Do not apply pressure to the roller cage. Apply
NOTE: pressure only to the inner race.

425L100008

5. Install collapsible spacer. Discard the used

collapsible spacer and install a new one.

6. Install drive pinion shaft assembly.

7. Install outer bearing and oil seal.

8. Use oil seal installer 5-8840-2165-0 (

φ220mm)

and 9-8522-1275-0 (

φ194mm) to install a new oil

seal that has grease on seal lip.

φφφφ220mm

415RW029

φφφφ194mm

415RW024

9. Install flange assembly.

10. Install flange nut.

a. Apply lubricant to the pinion threads.

b. Using the pinion flange holder 5-8840-0133-0,

tighten the nut only enough to remove the shaft

end play.

Note :
Discard used flange nut and install new one.

415RW040

c. Adjust pinion bearing preload.
• Measure the bearing preload by using a torque

meter and note the scale reading required to

rotate the flange.

• Continue tightening flange nut until the

specified starting torque is obtained.

REAR AXLE 4B-29

Starting torque :

φ220mm : 0.7-1.3 N⋅m

(0.07-0.13 kgf

⋅m/6-11 lb⋅in)

φ194mm : 0.7-1.1 N⋅m

(0.07-0.11 kgf

⋅m/6-10 lb⋅in)

Note :

• Do not overtighten or loosen and then

retighten the nut.

• Pinion nut torque will be in the range of 245-

294 N

⋅⋅⋅⋅m (25-30 kgf⋅⋅⋅⋅m/181-217 lb⋅⋅⋅⋅ft) (φφφφ220mm)

and 177-275 N

⋅⋅⋅⋅m (18-28 kgf⋅⋅⋅⋅m/130-203 lb⋅⋅⋅⋅ft)

(

φφφφ194mm).

425RW018

d. Using punch 5-8840-2293-0, stake the flange

nut at two points.

Note :
When staking, be sure to turn the nut to ensure
that there is no change in bearing preload. Make
sure NOTE: of preload again as instructed in c.

RTW54BSH000901

11. Adjust ring gear backlash.

a. Attach the side bearing to the differential

assembly without shims by using installer 5-

8840-2162-0 and grip 5-8840-0007-0.

425L100010

b. Insert the differential cage assembly with

bearing outer races into the side bearing bores

of the carrier.

4B-30 REAR AXLE

425RS030

c. Using two sets of feeler gauges, insert a

feeler stock of sufficient thickness between

each bearing outer race and the carrier to

remove all end play. Make certain the feeler

stock is pushed to the bottom of the bearing

bores.

Mount the dial indicator 5-8840-0126-0 on the

carrier so that the indicator stem is at right

angles to a tooth on the ring gear.

425RW049

d. Adjust feeler gauge thickness from side to

side until ring gear backlash is in the specified

range.

Backlash :

φ220mm : 0.15-0.20 mm (0.006-0.008 in)

φ194mm : 0.13-0.18 mm (0.005-0.007 in)

425RS032

With zero end play and correct backlash

established, remove the feeler gauge packs,

determine the thickness of the shims required

and add 0.05 mm (0.002 in) to each shim pack

to provide side bearing preload. Always use

new shims.

e. Remove side bearing by using remover 5-

8840-0013-0 and 5-8840-0014-0 and adapter

5-8840-2196-0 (

φ220mm) and 9-8521-1743-0

(

φ194mm).

φφφφ220mm

RTW54BSH000101

REAR AXLE 4B-31

φφφφ194mm

RTW54BSH000201

12.

Install the side bearings together with the

selected shims by using installer 5-8840-2162-0

(

φ220mm) and 9-8522-1164-0 (φ194mm), drive

handle 5-8840-0007-0 and pilot 9-8521-1743-0

(

φ194mm).

φφφφ220mm

425L100010

φφφφ194mm

425R300004

13. Install side bearing outer race.

14. Install differential cage assembly.

15. Align the setting marks (1) applied at disassembly

then install the bearing cap.

425RS035