2007 ISUZU KB P190 Workshop Repair Manual

Page 4201 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4–66 UNIT REPAIR (AW30–40LE)
Before assembling new discs, soak them in ATF 
for at least fifteen minutes.
248RY00045
4. Check piston return spring. Using calipers, measure the free length of th

Page 4202 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (AW30–40LE) 7A4–67
3. Coat a new O-ring with ATF and install O-ring on theforward clutch drum.
248RY00047
4. Coat new O-rings with ATF and install two O-ringson the forward clutch pist

Page 4203 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4–68 UNIT REPAIR (AW30–40LE)
8. Install cushion plate rounded side down as shown.
248RY00069
9. Install five discs and five plates.Install in order: P –D –P –D –P –D –P –D –P –

Page 4204 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (AW30–40LE) 7A4–69
13. Coat the race and thrust bearing with petroleumjelly, and install them onto the forward clutch drum. 
Race and bearing diameter (Reference)
248RY00048
14. Align

Page 4205 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4–70 UNIT REPAIR (AW30–40LE)
Front Planetary Gear
Disassembled View
RTW77ASF000201
EndOFCallout
Disassembly
1. Remove the race from front planetary ring gear. 
2. Remove the thrust bearing and r

Page 4206 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (AW30–40LE) 7A4–71
Reassembly
1. Coat the race and thrust bearing with petroleumjelly. 
Install the race and bearing to the rear side of the
front planetary gear.
Race and bearing diam

Page 4207 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A4–72 UNIT REPAIR (AW30–40LE)
Planetary Sun Gear and No.1 One-Way Clutch
Disassembled View
RTW77ASF000301
EndOFCallout
Legend(1) Snap ring 
(2) Planetary sun gear (3) Sun gear input drum
(4) Snap

Page 4208 of 6020

ISUZU KB P190 2007  Workshop Repair Manual UNIT REPAIR (AW30–40LE) 7A4–73
Disassembly
1. Check operation of No.1 one-way clutchHold the planetary sun gear and turn the second 
brake hub. 
The second brake hub should turn freely clockwise
a