Isuzu KB P190. Manual - part 1069

CONSTRUCTION AND FUNCTION  7A1-37 

COMPONENT AND THEIR OPERATING CONDITION 

 

 

 Clutch  

Brake 

Solenoid 

Pressure Switch 

Select 

lever 

position 

 

Gear 

position 

 

Gear 

Shift 

 

Lock-

up 

 

L/C 

 

H/C 

 

R/C

 

L/O.C

 

L&R/B

 

2-4/B

 

L/C.S

 

H/C.S

 

L&R/

B.S

 

2-4/ 

B.S 

 

L/U.S 

H/ 

C.P/

SW

L&R/

B.P/

SW

2-4

B.P/

SW

P 

- 

- 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R 

Reverse - 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N 

- 

- 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D 

4th 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 

4th(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 

4th(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L 

4th(*1) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1: Shifting the select lever to manual position at high speed, the transmission may hold the gear position 
until vehicle speed get down to certain speed to prevent engine overrun. 

 - Engaged or operated 

- Operative when accelerating 

 
 

7A1-38  CONSTRUCTION AND FUNCTION 

P Position 
Although the driving force of the input shaft is transmitted to the rear sun gear and reverse & high clutch 
drum, the driving force is not transmitted to the output shaft since all of the clutches and brakes are not 
engaged.  Therefore, the vehicle can move in this condition.  However, since the output shaft is mechanically 
locked with the parking pawl, the rear planetary carrier and front internal gear are locked.  For this reason, the 
vehicle does not move. 
 

 

 

 

 

 

 

CONSTRUCTION AND FUNCTION  7A1-39 

N Position 
Although the driving force of the input shaft is transmitted to the rear sun gear and reverse & high clutch 
drum, the driving force is not transmitted to the output shaft, as all of the clutches and brakes are not 
engaged.  Therefore, the vehicle can move at this condition. 
 

 

 

 

 

 

 

7A1-40  CONSTRUCTION AND FUNCTION 

Reverse Gear in Position 

The driving force from the input shaft is transmitted to the rear sun gear and reverse & high clutch drum.  In the R 
position, the reverse clutch is engaged and the driving force is transmitted to the front sun gear and rotates it 
clockwise.  The low & reverse brake is also engaged and the front planetary carrier is fixed so that the front pinion 
gear does not rotate clockwise, but can rotate counterclockwise. As a result, the output shaft rotates 
counterclockwise and the vehicle goes backwards.