Isuzu KB P190. Manual - part 1121

UNIT REPAIR (JR405E)  7A4-7 

 

16ASSY047 

 
 

11.High clutch hub, bearing, and bearing race 

•  Remove the clutch hub, bearing (with bearing race), and 

the bearing race. 

•  Remove the bearing (with bearing race) and the bearing 

race from the high clutch hub. 

•  Inspect the bearing race surfaces for damage. 

 
 

 

17ASSY040 

 
 

12.Front sun gear, bearing, and bearing race 

•  Remove the bearing, the front sun gear, and the bearing 

race. 

•  Remove the bearing and the bearing race from the front 

sun gear. 

•  Inspect the bearing race surfaces for damage. 

 

 

19ASSY113 

 
 

13.2-4 brake retainer 

•  Remove the brake seal ring and the sleeve. 

 
 

 

23ASSY030 

 
 

•  Attach the spring compressor to the transmission case.

Spring compressor: 5-8840-2764-0 

 
 

 

24ASSY029 

 
 

•  Force out the 2-4 brake retainer and remove the snap 

ring. 

NOTE: 
Overturning the spring compressor will damage the 2-4 
brake retainer. 

•  Remove the spring compressor. 

 
 

7A4-8  UNIT REPAIR (JR405E) 

 

25ASSY019 

 
 

•  Remove the 2-4 brake retainer and return spring. 

 
 

 

26ASSY026 

 
 

14.Carrier assembly (Carrier and low clutch assembly),

bearing, bearing race, and 2 – 4 brake assembly 

•  Pull the carrier assembly, the bearing, the bearing race 

and the 2-4 brake assembly (Dish plate, retaining plate, 

drive plate, and driven plate) from the transmission case

at the same time. 

•  Remove the bearing, the bearing race, and the 2-4 

brake assembly from the carrier assembly. 

 
 

 

27U-SPG02 

 
 

•  Remove the 3 brake springs from the transmission case.

 
 

 

28L&R06 

 
 

15.Low and reverse brake 

•  Remove the snap ring. 
•  Pull the low and reverse brake free. 

 

 

 
 

16.Rear extension (2WD) or Adapter case (4WD) 

•  Rotate the transmission case so that the oil pan opening

is facing up. 

•  Remove the 10 bolts and the rear extension (2WD) or 

the adapter case (4WD). 

 

UNIT REPAIR (JR405E)  7A4-9 

 

29ASSY091 

 
 

17.Output shaft 

•  Pull the output shaft from the transmission case. 

 

 

30ASSY089 

 
 

•  Remove the bearing (with bearing race) from the

transmission case. 

 

 

31ASSY124 

 
 

18.Parking pawl, shaft, spring, and spacer 

Remove the parking pawl, shaft, spring and spacer from the 

transmission case. 

 

 

36ASSY075 

 
 

19.Actuator support 

Remove the actuator support from the transmission case. 

 

 

37ASSY074 

 
 

20.Low one-way clutch inner race and bearing 

•  Loosen the 7 bolts securing the low one-way clutch inner 

race. 

NOTE: 
Loosen the bolts a little at a time as uniformly as possible 
to prevent the inner race from tilting and becoming 
jammed. 

•  Remove the 6 bolts. Support the low one-way clutch 

inner race with your hand and remove the final bolt. 

7A4-10  UNIT REPAIR (JR405E) 

 

39ASSY006 

 
 

•  Remove the bearing and the low one-way clutch inner 

race from the transmission case. 

•  Remove the bearing from the low one-way clutch inner 

race. 

 

 

40ASSY005 

 
 

21.Low and reverse brake return spring 

Remove the low and reverse brake return spring from the

transmission case. 

 

 

41L&R02 

 
 

22.Low and reverse brake piston 

•  Force compressed air (390 kPa/4.0 kgf/cm

2

/57 psi) 

through the transmission case oil passages. 

 

 

42ASSY004 

 
 

•  Remove the low and reverse brake piston from the

transmission case.