2004 ISUZU TF SERIES lock

7A4–76 UNIT REPAIR (AW30–40LE)
5. Install thrust washer (plastic).
NOTE: Make sure that the lugs fit into the holes on the
sun gear input drum.
24 8RY 0 005 7
6. Install assembled No.1 one-way clutch and second
brake hub onto planetary sun gear as shown.
24 8RY 0 005 8
7. Check operation of No.1 one-way clutch
Hold the planetary sun gear and turn the second
brake hub.
The second brake hub should turn freely clockwise
and should lock counterclockwise.
RUW3 7A SH00 4601
E nd OFCa llou t
Legend
(1) Free
(2) Lock

7A4–82 UNIT REPAIR (AW30–40LE)
Disassembly
1. Remove second brake assembly from output shaft.
24 6RY 0 001 4
2. Remove oil seal ring from output shaft.
24 7RY 0 002 8
3. Remove the seven discs, seven plates and flange
(B–3).4. Remove rear planetary gear from rear planetary ring
gear.
24 7RY 0 0029
5. Check operation of No.2 one-way clutch.
Hold the planetary gear and turn the one-way clutch
inner race.
The one-way clutch inner race should turn freely
counterclockwise and should lock clockwise.
RUW3 7A SH00 4701
E nd OFCa llou t
Legend
(1) Lock
(2) Free

UNIT REPAIR (AW30–40LE) 7A4–85
7. While turning counterclockwise, install one-way
clutch inner race to rear planetary gear.
24 7RY 0 004 0
8. Check operation of one-way clutch.
Hold the planetary gear and turn the one-way clutch
inner race.
The one-way clutch inner race should turn freely
counterclockwise and should lock clockwise.
RUW 37A SH00 470 1
E nd OFCa llou t
9. Install rear planetary gear onto rear planetary ring
gear.
24 7RY 0 0029
10. Install the disc, plate and flange (B–3).
Install a brake flange onto the rear planetary gear
assembly.
Install a clutch disc onto the rear planetary gear
assembly.
NOTE: The claw interval of the plate should be as
shown in the figure when viewing the clutch plate from
the arrow direction.
24 6RY 0 0013
Legend
(1) Lock
(2) Free

UNIT REPAIR (AW30–40LE) 7A4–97
Disassembled View
2 44R20 0075
Legend
(1) By-pass valve
(2) Spring
(3) Strainer
(4) Shift solenoid S1
(5) Shift solenoid S2
(6) Lock-up solenoid SL
(7) Clamp
(8) Accumulator sub-assembly
(9) Retainer
(10) Spring
(11) Ball
(12) Retainer
(13) Plug
(14) Spring
(15) 1–2 shift valve
(16) Retainer
(17) Spring(18) Low coast modulator valve
(19) Retainer
(20) Plug
(21) Spring
(22) Accumulator control valve
(23) Retainer
(24) Spring
(25) Solenoid modulator valve
(26) Retainer
(27) Plug
(28) Spring
(29) Cut back valve
(30) Retainer
(31) Sleeve
(32) Plunger
(33) Plunger
(34) Spring
(35) Washer
(36) Primary regulator valve

7A4–98 UNIT REPAIR (AW30–40LE)
E nd O FCallo ut
Disassembly
1. Remove by-pass valve and spring.
2 44R20 006 3
2. Remove three strainers.
2 44R20 006 4
NOTE: Confirm six retainers are installed correctly.
2 44R20 0066
3. Remove the shift solenoid S1 and shift solenoid S2.
Remove the fix ing bolt.
Remove the shift solenoid S1 (2) and S2 (1) from
each bore.
Remove the O-rings from each solenoid.
4. Remove the lock-up solenoid SL
Remove the fix ing bolt.
Remove the lock-up solenoid SL (3) from the
bore.
Remove the O-ring from solenoid.
5. Remove the accumulator sub-assembly
Remove the clamp.
Remove the accumulator sub-assembly (4) from
the bore. (37) Lower valve body

UNIT REPAIR (AW30–40LE) 7A4–107
12. Install the retainer(12) by pushing the plug.
2 44R20 006 7
13. Install the ball(11), spring(10) and retainer (9) to the
valve body.
Torque: 6.9 N·m (60Ibin)
2 44R20 005 2
14. Install the accumulator sub-assembly (8) and
clamp(7) to the valve body.
Torque: 10 N·m (87Ibin)
15. Install a new O-ring to the lock-up solenoid SL (6).
Install the solenoid to the valve body.
Torque: 10 N·m (87Ibin)16. Install a new O-ring to the shift solenoid S2 (5) and
shift solenoid S1 (4).
Install the solenoids to the valve body.
Torque: 10 N·m (87Ibin)
RUW 37A M H00 0401
E nd OFCa llou t
NOTE: Make sure six retainers are installed correctly.
2 44R20 0066
Legend
(4) Shift Solenoid S1
(5) Shift Solenoid S2
(6) Lock-up Solenoid SL
(8) Accumulator Sub-assembly
(9) Retainer

7A4–110 UNIT REPAIR (AW30–40LE)
Disassembled View
2 43R20 0074
E nd O FCallo ut
Legend
(1) Check ball
(2) Retainer
(3) Check valve NO.2
(4) Ball
(5) Check valve NO.1
(6) Retainer
(7) Check valve NO.2
(8) Ball
(9) Check valve NO.1
(10) Retainer
(11) Plug
(12) Secondary regulator valve
(13) Spring
(14) Retainer
(15) Plug
(16) Spring
(17) 2–3 shift valve(18) Retainer
(19) Plug
(20) Spring
(21) Reverse control valve
(22) Retainer
(23) Plug
(24) Second coast modulator valve
(25) Spring
(26) Retainer
(27) Plug
(28) 3–4 shift valve
(29) Spring
(30) Retainer
(31) Sleeve
(32) Plunger
(33) Spring
(34) Lock-up relay valve
(35) Upper valve body

UNIT REPAIR (AW30–40LE) 7A4–11 5
16. Remove the retainer (30) for lock-up relay valve with
a magnetic finger by pushing in the sleeve.
2 43R20 007 1
17. Remove the sleeve(31) with the plunger(32),
spring(33) and lock-up relay valve(34).
Remove the lock-up relay valve(34), spring(33) and
plunger(32) from the sleeve(31).
2 43R20 006 5
Inspection and Repair
1. Inspect valve springs
Check for damage, squareness, rust and distorted
coils.
Measure the spring free length and replace if less
than below.
mm (in)
2 43R20 0076
SpringFree
lengthColor
(1) Secondary regulator valve32.9
(1.295)PURPLE
(2) 2–3 shift valve30.8
(1.213)PURPLE
(3) Reverse control valve25.6
(1.008)—
(4) Second coast modulator
valve25.3
(0.996)ORANGE
(5) 3–4 shift valve30.8
(1.213)PURPLE
(6) Lock-up relay valve 23.4
(0.912)RED