1995 ISUZU TROOPER Workshop Manual

ADAPTER CASE VALVE BODY
AUTOMATIC TRANSMISSION (4L30-E) 7A-193
1
Disassembly steps
1. Converter clutch sole-
noid
2. Retainer
3. Force motor solenoid
4. Spring pin
5. Plug
6. 3/4 accumulator valve
7. 3/4 accumulator control
valve
·
8. Spring pin
9. Spring
10. Retaining ring
11. Feed limit valve
12. Spring pin
13. 0-ring
14. Plug
15. Force motor screen
assembly
Reassembly
steps
To
reassemble, follow the
disassembly steps in the
reverse order.
Fig. 7A-67
l.,!,.l DISASSEMBL V
1. Converter clutch solenoid
• Remove 11 mm bolt from valve body.
• Remove converter control solenoid assembly
with two 0-ring.
2. Retainer
• Remove 11 mm bolt and retainer from valve
body.
3. Force motor solenoid
4. Spring pin
5. Plug
6. 3/4 accumulator valve
7. 3/4 accumulator control valve
8. Spring pin
9.
Spring
10. Retaining ring
11. Feed
limit valve
12. Spring pin
13. 0-ring
14. Plug
15. Force motor screen assembly
• Use 5mm bolt to pull plug.
(L!] INSPECTION AND REPAIR
Inspect for the following and replace any damaged or
worn parts:
• Damage or wear to each valve.
•
Damage in oil passages.
• Cracks or damage to valve body.
• Valve operations.
• Spring fatigue

7A-194 AUTOMATIC TRANSMISSION (4L30-E)
f•!•l REASSEMBLY
15. Force motor screen assembly
14. Plug
13. 0-ring
12. Spring pin
11. Feed
limit valve
10. Retaining ring
9. Spring
8. Spring pin
7. 3/4 accumulator control valve
6. 3/4 accumulator valve
5. Plug
4. Spring pin
3. Force motor solenoid
2. Retainer
r=1 • Plac_e solenoid terminals pointing towards
1=.1 matmg face.
• Install retainer and bolt.
~~~ Torque N·m (lb·in) I 10 (87)
1. Converter clutch solenoid
• Install converter clutch solenoid assembly with
two 0-rings to valve body.
• Install bolt.
~~~ Torque N·m (lb·in) I 10 (87)

THIRD CLUTCH AND SPRAG UNIT
AUTOMATIC TRANSMISSION (4L30-E) 7A-195
Disassembly steps
1. Retaining ring
2. Input sun gear assembly 3. Retaining washer 4. Bearing 5. Thrust washer 6. Clutch plates 7. Third clutch drum
Reassembly steps
To reassemble, follow the disassembly steps in the reverse order.
Fig. 7A-68
1•! .. 1 DISASSEMBL V
1. Retaining ring (Fig. 7A-69)
• Place the third clutch housing and intermediate
shaft
assembly upright, using the overdrive
internal gear as a support.
I®J • Locate the end of the sprag retaining ring.
Compress near the
end, using a screwdriver
through the side
slot and slide one tool blade
between ring and housing to hold the ring clear
of the groove.
• Repeat with a second tool blade near the other
end
of the retaining ring.
• Repeat with a third tool blade opposite the first
two.
• Repeat with two further blades equally spaced
apart.
Third
clutch retaining ring compressor: J-38450
2. Input sun gear assembly
3.
4.
5.
6.
7.
• Pull the input sun gear assembly unit until the
sprag retaining ring
clears the ring groove.
Retaining washer
Bearing
Thrust washer
Clutch plates
Third clutch drum
Fig. 7A-69
Third clutch
drum
assembly
00. internal

7A-196 AUTOMATIC TRANSMISSION (4L30-E)
IL•IINSPECTION AND REPAIR
Visual check
• If any damage, deformation or local wear is
found in a bearing, thrust washer, clutch plates
or third clutch drum, replace it.
l•!•l REASSEMBLY
7. Third clutch drum
6. Clutch plates
• Place third clutch housing and intermediate
shaft assembly upright, using the overdrive
internal gear
as a support.
, .. , • Install third clutch spring cushion plate,
bevel face
down.
• Install third clutch plates into clutch housing.
Start
with the steel clutch plate and alternate
with lined plates.
5.
Thrust washer
4. Bearing
3. Retaining washer
2. Input sun gear assembly (fig. 7A-70)
1. Retaining ring
• Fully engage the sprag assembly hub
splines into the third clutch inner tangs.
Simultaneously rotate the outer sprag race
to engage into the third clutch housing.
1®.1 • Install a tool blade at each extremity of the
retaining ring.
• Compress the retaining ring with a screw­
driver opposite the tool blades while
pushing down on the outer sprag race.
THIRD CLUTCH
Fig. 7A-71
• Engage retaining ring into groove.
• Remove tool blades.
Third clutch retaining ring compressor: J-38450
J.4---J-38450
~~--oo. internal
gear
Fig. 7A-70
Disassembly steps 1. Retaining ring 2. Spring seat 3. Springs 4. Piston
Reassembly steps
To reassemble, follow the
disassembly steps in the
reverse order.
*; Repair kit

l•!•l DISASSEMBLY
1. Retaining ring (Fig. 7A·72)
1®.1• Compress spring seat using the tool.
U7 NOTE:
VI Do not over-stress the springs and seat. This will
cause damage to the spring seat.
• Remove retaining ring.
• Release the spring seat.
U7 NOTE:
VI Do not let the spring seat catch in the ring groove.
Spring compressor: J-23075
Adapter: J-23075-12
Fig. 7A-72
2. Spring seat
3. Springs
4. Piston
~ INSPECTION AND REPAIR
Visual check
J-23075-12
J-23075
• If any damage, deformation or local wear is found
in a retaining ring, return spring, piston
seals or
spring seat, replace it.
Operation check
• Shake piston and listen for check ball movement.
Replace piston if check ball is missing or falls out.
AUTOMATIC TRANSMISSION (4L30-E) 7A-197
l•!•l REASSEMBLY
4. Piston (Fig. 7A·73)
r=1 • The lip of the seals must point toward the front
t=J of the transmission. Lubricate the lip seal with
loe:r·l transmission fluid.
~·
Install piston assembly into the third clutch
drum. Use installer to protect the outer seal
during installation.
Third clutch piston installer: J-23084
J-23084
Third clutch----•n drum
Fig. 7A-73
3. Springs
2. Spring seat
1. Retaining ring
• Place retaining ring onto spring seat.
~ • Co~press the piston springs, using the piston
sprmg compressor.
WcAUTION:
Do not over-stress the springs and seat. Do not let the
spring seat catch in the ring groove. This may cause
damage to the spring seat.
• Install spring seat retaining ring.
• Remove the piston spring compressor.
Spring compressor: J-23075
Adapter: J-23075-12