2007 ISUZU KB P190 Workshop Repair Manual

Page 4505 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4-28  UNIT REPAIR (JR405E) 
  OIL PUMP ASSEMBLY 
 
 01PUMP32 
Legend 
  1. Oil seal  
  2. O-ring (small) 
  3. Oil pump housing 
  4. Inner rotor 
  5. Outer rotor   
 
  6. Oil pump cover 
  7. O-

Page 4506 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (JR405E)  7A4-29 
 
04PUMP10 
  
  •
  Separate the oil pump cover from the oil pump housing
by tapping on each of the bolts with a plastic hammer. 
  
 
 
06PUMP13 
  
  3. Inner rotor

Page 4507 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4-30  UNIT REPAIR (JR405E) 
 
09PUMP05 
  
  7. Seal ring 
Remove the 4 seal rings from the oil pump cover. 
  
 
 
11PUMP43 
  
 Inspection 
Oil pump cover 
•  Install new seal rings to the oil p

Page 4508 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (JR405E)  7A4-31 
  
   
 Reassembly steps 
 
15PUMP18 
 
  1. O-ring (small) 
Install new O-ring (small) to the oil pump housing.  
 
16PUMP29 
 
  2. Outer rotor  
3. Inner rotor  Instal

Page 4509 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4-32  UNIT REPAIR (JR405E) 
  CLUTCH PACK (REVERSE AND  
HIGH CLUTCH ASSEMBLY) 
 
 01R&H17 
Legend 
  1. Reverse and high clutch drum  
  2. Seal ring (reverse clutch) 
  3. Lip seal (reverse clutch

Page 4510 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (JR405E)  7A4-33 
 
03R&H21 
  
  2. Retaining plate, drive plates, driven plates and dish 
plate  
Remove the reverse clutch retaining plate, the 2 drive
plates, the 2 driven plates, and

Page 4511 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4-34  UNIT REPAIR (JR405E) 
 
08R&H36 
  
  8.  High clutch piston  
9.  Reverse clutch piston  •  Install the reverse and high clutch drum to the oil pump.
•   Force compressed air into the oil

Page 4512 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (JR405E)  7A4-35 
Return springs •  Check the number of effective return spring coils. 
If the number is less than the specified minimum, the  
return spring must be replaced. 
Effective