2004 ISUZU TF SERIES Workshop Manual

Page 3825 of 4264

ISUZU TF SERIES 2004  Workshop Manual UNIT REPAIR (AW30–40LE) 7A4–17
Disassembly
1. Remove seven bolts fix ing the oil pump to the
transmission case.
Remove the oil pump.
24 1RY 0 000 3
2. Remove race from oil pump.
24 1RY 0 000 2
3.

Page 3826 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7A4–18 UNIT REPAIR (AW30–40LE)
5. Remove the overdrive planetary ring gear from the
transmission case.
25 2RY 0 000 2
6. Check piston stroke of overdrive brake
Place a dial indicator onto the over

Page 3827 of 4264

ISUZU TF SERIES 2004  Workshop Manual UNIT REPAIR (AW30–40LE) 7A4–19
8. Remove one flange, four plates and four discs (B–
0).
24 6RY 0 002 6
9. Remove the thrust bearing and two races.
24 7RY 0 000 3
10. Using snap ring pliers, remo

Page 3828 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7A4–20 UNIT REPAIR (AW30–40LE)
Install two removed bolts to the OD support, and
pull out the OD support assembly.
25 2RY 0 000 5
12. Remove the race from OD support.
25 2RY 0 000 6
13. Check pist

Page 3829 of 4264

ISUZU TF SERIES 2004  Workshop Manual UNIT REPAIR (AW30–40LE) 7A4–21
14. Using snap ring pliers, remove the snap ring.
24 8RY 0 000 6
15. Applying compressed air to the oil hole, remove the
second coast brake piston assembly.
24 8RY 0

Page 3830 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7A4–22 UNIT REPAIR (AW30–40LE)
18. Remove the second coast brake band from the
transmission case.
24 8RY 0 001 0
19. Remove the front planetary ring gear from the
transmission case.
24 7RY 0 000 4

Page 3831 of 4264

ISUZU TF SERIES 2004  Workshop Manual UNIT REPAIR (AW30–40LE) 7A4–23
NOTE:  Hold the output shaft to prevent it from falling.
The output shaft falls when the snap ring is removed.
23. Remove the front planetary gear from the
transmiss

Page 3832 of 4264

ISUZU TF SERIES 2004  Workshop Manual 7A4–24 UNIT REPAIR (AW30–40LE)
27. Check pack clearance of first and reverse brake (B–
3)
Using a feeler gauge, measure the clearance
between the plate and second brake drum as shown
in the figu