torque ISUZU AXIOM 2002 Service Repair Manual

7A±65 AUTOMATIC TRANSMISSION (4L30±E)
43. Inspect speed sensor O±ring. Replace if necessary.

Install speed sensor assembly (39) and 10 mm
screw.
Torque: 9 Nwm (78 lb in)
241RW013
241RS004
44. Main case end play measurement
1. Attach axial play checking tool on the extension
housing and set indicator to zero on output shaft.
2. Manually push output shaft upwards.
End play: 0.36mm ± 0.80mm (0.014 in ± 0.031in)
3. Remove axial play checking tool.
4. If end play is not correct, repeat selective washer
selection.
241RS005
45. Inspect servo piston seal ring. Replace if necessary.

Ensure brake band is correctly positioned. Rotate
output shaft if necessary.

Install J±38428 servo piston fitter in servo bore.

Install apply rod (40), round end toward band, return
spring (41) and piston assembly (42).
46. Install the J±23075 servo spring compressor with
offset to rear of case.

Compress servo piston seal ring, using fitter while
tightening the tool screw.

Install servo piston retaining ring (43).

Remove tool.

Adjust the brake band by tightening the servo
adjusting screw to 4.5 N´m (39.8 lb in) torque. Be
certain the lock nut is loose, then back±off the
screw five turns exactly. Hold piston sleeve with
wrench and tighten lock nut to 18.5 N´m (13.6 lb ft)
torque. Be certain the adjusting screw does not
turn.

7A±66
AUTOMATIC TRANSMISSION (4L30±E)
242RW004
47. Install two check balls (44).
244RW002
48. Inspect main case electrical connector and seal,
replace if necessary.

Install electrical 7 way connector/main case and
wiring harness.
49. Install two J±25025±B guide pins into main case.

Install main case valve body complete assembly
(45) and manual valve link.NOTE: Valve must be extended as the short end of
manual valve link is connected to the range selector lever.
Long end of link goes into valve.

Install seven 13 mm screws.
Torque: 20 Nwm (15 lb ft)

Remove two guide pins.
50. Install servo cover gasket, cover (46) and four 13 mm
screws.
Torque: 25 Nwm (18 lb ft)
51. Connect wiring harness (47) to band control, shift
solenoids, and main case 7 way connector.
52. Install manual detent roller and spring assembly (48)
with clip.

Install two 13 mm screws.
Torque: 20 Nwm (15 lb ft)
53. Install oil filter (49), and three 13 mm screws.
Torque: 20 Nwm (15 lb ft)
54. Install oil pan gasket, magnet, main oil pan (50), and
sixteen 10 mm screws.
Torque: 11 Nwm (96 lb in)
55. Inspect adapter case electrical connector and seal.
Replace if necessary.

Install electrical 4 way connector and harness
assembly (52) in bottom of adapter case.
56. Install gasket, transfer plate, and gasket.

Install adapter case valve body (51) and seven 13
mm screws.
Torque: 20 Nwm (15 lb ft)
57. Connect wiring harness harness assembly (52) to
converter clutch PWM solenoid, force motor, and 4
way connector.
58. Install oil pan gasket, adapter case oil pan (53), and
twelve 10 mm screws.
Torque: 11 Nwm (96 lb in)

Rotate transmission, with bottom pan facing down.
59. Install mode switch (54), two 10 mm screws, selector
lever nut, and cover.
10 mm screw
Torque: 13 Nwm (113 lb in)
Nut
Torque: 23 Nwm (17 lb ft)

Adjust using setting tool, refer to
Mode Switch in
this section.
60. Install O±ring (55) on turbine shaft.
61. Install torque converter (56).
The converter assembly must be replaced under any
of the following conditions:
a. Evidence of damage to the pump assembly.
b. Metal particles are found after flushing the cooler
lines.
c. External leaks in hub weld area.
d. Converter pilot broken, damaged, or poor fit into
crankshaft.

7A±68
AUTOMATIC TRANSMISSION (4L30±E)
Converter Housing And Oil Pump Assembly
Disassembled View
241RY001
Legend
(1) Converter Housing
(2) Outer Seal Ring
(3) Gasket(4) Wear Plate
(5) Oil Pump Assembly
(6) Oil Seal Ring
Disassembly
1. Remove oil pump assembly from converter housing.
2. Remove outer seal ring.
3. Remove gasket.
4. Remove wear plate.
5. Remove oil seal ring.
Inspection And Repair
Visual Check:
If any damage, deformation, or local wear is found in a
converter housing, outer seal ring, wear plate, or oil seal
ring, replace it.
Reassembly
1. Install wear plate onto oil pump assembly.
2. Install converter housing onto complete oil pump
assembly. Align with two short J±38588 guide pins on
outer bolt holes.

Loosely install five 13mm bolts.

Center converter housing using J±38557 centering
tool.
Tighten five inner 13mm bolts in an alternating
pattern.
Torque: 20 Nwm (15 lb ft)
241RW002
3. Install oil seal ring (3 screws).
Torque: 3 Nwm (26 lb in)
4. Install gasket.
5. Install outer seal ring.

7A±69 AUTOMATIC TRANSMISSION (4L30±E)
Oil Pump
Disassembled View
241RY002
Legend
(1) Oil Pump Drive Gear
(2) Oil Pump Driven Gear
(3) Pin
(4) Plug
(5) Seal Ring
(6) Torque Converter Clutch Control Valve
(7) Converter Clutch Control Valve Spring
(8) Pin
(9) Converter Clutch Regulator Sleeve
(10) Converter Clutch Regulator Spring
(11) Converter Clutch Regulator Valve
(12) Isolator Spring
(13) Isolator Valve
(14) Pin(15) Enable Valve Spring Guide
(16) Enable Valve Spring
(17) Enable Valve
(18) Snap Ring
(19) Spring Seat
(20) Throttle Signal Accumulator Spring
(21) Throttle Signal Accumulator Piston
(22) Sleeve Pin
(23) Boost Valve Sleeve
(24) Boost Valve
(25) Spring Seat
(26) Pressure Regulator Valve Spring
(27) Spring Seat
(28) Pressure Regulator Valve
(29) Oil Pump Assembly
Disassembly
1. Remove oil pump drive gear (1) and driven gear (2).
2. Remove pin (3) from oil pump assembly (29).
3. Remove plug (4) and seal ring (5), torque converter
clutch control valve (6) and spring (7).
4. Remove pin (8) from oil pump assembly (29).5. Remove torque converter regulator sleeve (9),
converter clutch regulator spring (10), converter
clutch regulator valve (11), isolator spring (12) and
isolator valve (13).
6. Remove pin (14) from oil pump assembly (29).
7. Remove enable valve spring (16), spring guide (15)
and enable valve (17).
8. Remove snap ring (18) from oil pump assembly (29).

7A±70
AUTOMATIC TRANSMISSION (4L30±E)
9. Remove spring seat (19), spring (20) and throttle
signal accumulator piston (21).
10. Remove sleeve pin (22) from oil pump assembly (29).
11. Remove boost valve sleeve (23), boost valve (24),
spring seat (25), valve spring (26), spring seat (27),
and pressure regulator valve (28).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Lubricate and preinstall pressure regulator spring
seat (27) on valve (28), with the flat side against
shoulder.
2. Install pressure regulator valve (28) and spring seat
(27) assembly, valve spring (26), and spring seat (25)
with the flat side away from spring to oil pump
assembly (29).
3. Assemble boost valve (24) into sleeve (23).
4. Install boost valve and sleeve assembly, and sleeve
pin (22) to oil pump assembly (29).
5. Install throttle signal accumulator piston (21), spring
(20), and spring seat (19), with the flat side away from
the spring, and snap ring (18) to oil pump assembly
(29).
6. Install enable valve (17), spring guide (15), enable
valve spring (16) and retainer pin (14) to oil pump
assembly (29).
7. Assemble torque converter regulator spring (10) and
torque converter regulator valve (11) into sleeve (9).
8. Install isolator valve (13), isolator valve spring (12)
and the torque converter regulator sleeve and valve
assembly into the oil pump assembly (29).
9. Install torque converter clutch control valve spring (7),
torque converter clutch control valve (6), plug (4) and
seal ring (5), and retainer pin (3) to oil pump assembly
(29).
10. Install oil pump driven gear (2) and drive gear (1).

7A±72
AUTOMATIC TRANSMISSION (4L30±E)
10. Remove retainer (13), 2±3 shift valve (14), and spring
(15).
11. Remove spring pin (16), plug (17), spring (18), and
low pressure control valve (19).
12. Remove spring pin (20), plug (21), and band control
screen assembly (22).
13. Remove spring pin (23), plug (24), 1±2 accumulator
valve (25), and 1±2 accumulator control valve (26).
14. Remove check ball (27) from valve body (28).
Inspection And Repair
Inspect for the following, and replace any damaged or
worn parts:
1. Damage or wear to each valve.
2. Damage in oil passeges.
3. Cracks or damage to valve body.
4. Valve operations.
5. Spring fatigue.
Reassembly
1. Install 1±2 accumulator control valve (26), 1±2
accumulator valve (25), plug (24), and spring pin (23).
2. Install band control screen assembly (22), plug (21),
and spring pin (20).
3. Install low pressure control valve (19), spring (18),
plug (17), and spring pin (16).
4. Install spring (15), 2±3 shift valve (14), retainer (13),
solenoid B (12), and spring pin (11).
5. Install spring (10), 1±2/3±4 shift valve (9), retainer (8),
solenoid A (7), and spring pin (6).
6. Install waved washer (5), band control solenoid (3),
and pin (4).
7. Install manual valve (2).
8. Install check ball (27) to valve body (28).9. Install gasket (valve body/transfer plate) and transfer
plate using two J±3387±2 guide pins.

Install two 11mm bolts.
Torque: 13 Nwm (113 lb in)244RS004

Install gasket (transfer plate/main case).

7A±74
AUTOMATIC TRANSMISSION (4L30±E)
Reassembly
1. Install force motor screen assembly (15), plug (14),
O±ring (13), and plug retainer (12).
2. Install feed limit valve (11), retaining ring (10), and
spring (9).
3. Install 3/4 accumulator control valve (8), 3/4
accumulator valve (7), plug (6), and retainer (5).
4. Install force motor solenoid (4).

Place solenoid terminals pointing towards mating
face.

Install retainer (3) and bolt.
Torque: 10 Nwm (87 lb in)
5. Install converter clutch PWM solenoid (2) with two
O±rings (2) and bracket (1) to valve body.

Install bolt.
Torque: 10 Nwm (87 lb in)

7A±85 AUTOMATIC TRANSMISSION (4L30±E)
247RS008
2. Remove spring seat (2) and springs (3).
3. Remove piston assembly (4).
4. Remove 8 bolts from center support (5), then remove
center support (5) from adapter case.
5. Remove gasket transfer plate/outer support (6),
center support transfer plate (7), and gasket transfer
plate/adapter case (8).
6. Remove restrictor (9) from adapter case housing.
7. Remove retainer plate (10), plug (11), spring (12), and
overrun lock out valve (13) from center support (5).
8. Remove retainer plate (14), plug (15), spring (16) and
reverse lock out valve (17) from center support (5).
Inspection And Repair
Visual Check:
If any damage, deformation or wear is found, replace the
damaged part.
Reassembly
1. Install reverse lock out valve (17) and spring (16) to
center support.
NOTE: Ensure correct assembly of valve. The spring
should be located over the long small diameter end.
2. Install plug (15) and retainer plate (14).
3. Install overrun lock out valve (13) and spring (12) to
center support.
NOTE: Ensure correct assembly of valve. The spring
should be located over the long small diameter end.
4. Install plug (11) and retainer plate (10).
5. Place restrictor (9) in the lube overdrive channel in the
adapter case housing.
242RS005
6. Install gasket transfer plate/adapter case (8), center
support transfer plate (7), and gasket transfer
plate/center support (6).
7. Install center support (5) with 8 bolts.
Torque : 25 Nwm (18 lb ft)
8. Install piston assembly (4) into center support (5).
9. Install twenty four springs (3), spring seat (2), and
retaining ring (1).

Install the J±23327 compressor and compress
spring seat (2) and springs (3), then seat snap ring
(1) in groove.

Remove the tool.

7A±89 AUTOMATIC TRANSMISSION (4L30±E)
Main Data And Specification
General Specifications
Remarks
ModelTHM 4L30±E
EngineV6 3.5L 6VE1DOHC
TypeAutomatic four speed overdrive in
4th gear lock±up clutch torque
converter
Shift controlHydraulic
Control systemsShift patternElectronicControl systemsShift qualityElectronic
Lock±up clutchElectronic
1st2.856
2nd1.618
Gear ratio3rd1.000
4th (O/D)0.723
Reverse2.000
Gear setNoiseless, high torque capability
Oil usedNameATF DEXRON)±IIIOil usedQ'ty liter (qt)8.6 (9.1)
Torque converter2,100 + 150Stall speed (rpm)
Reverse clutchRC4
Second clutchC26Number of discsThird clutchC36Number of discs
Brake bandDouble wrap
Fourth clutchC42Number of discsOverrun clutchOC1Number of discs
OverdriveOFW10Number of rollers
PrincipalPFW26Number of sprags
Input sun gear30
Pinion gear19
Ravigneaux plan-Long pinion23g
etary gear setRing gear90
Long pinion19Number of teeth
Output sun gear46
Odi l
Sun gear31
Overdrive plane-
tary gear setPinion gear24tary gear set
Ring gear81

7A±90
AUTOMATIC TRANSMISSION (4L30±E)
Torque Specifications
E07R200003