Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1897
7A4-20 UNIT REPAIR (JR405E)
Inspection
Valve
Inspect each of the valves for denting and other damage.
Spring
Inspect each of the springs for wear and fatigue.
Valve specifications
244L300006
UNIT REPAIR (JR405E) 7A4-21
No.
Valve
nomenclature
Diameter
(mm / in)
Length
(mm / in)
Configuration
1 Manual
12.0 /
0.472
82.0 /
3.228
2
2 – 4 brake
accumulator
15.0 /
0.591
37.5 /
1.476
3
Low and reverse
brake fail (B)
10.0 /
0.394
52.0 /
2.047
4 Reverse
stall
8.0 /
0.315
50.0 /
1.969
5
Low and reverse
brake solenoid
accumulator
14.0 /
0.551
19.5 /
0.768
6 Pilot
12.0 /
0.472
38.5 /
1.516
7
Low clutch
solenoid
accumulator
14.0 /
0.551
19.5 /
0.768
8
Low clutch amp
(A)
12.0 /
0.472
53.5 /
2.106
9
2 – 4 brake fail
(B)
10.0 /
0.394
39.0 /
1.535
10 Lock-up
control
12.9 /
0.508
57.5 /
2.264
11 2
– 4 brake amp
12.0 /
0.472
53.5 /
2.106
7A4-22 UNIT REPAIR (JR405E)
12
High clutch amp
12.0 /
0.472
53.5 /
2.106
13
High clutch
solenoid
accumulator
14.0 /
0.551
19.5 /
0.768
Spring specifications
No. Valve
nomenclature
Free length
(mm / in)
Outside
diameter (mm
/ in)
Linear
diameter (mm
/ in)
Number of
coils
1
Manual
---- ---- ---- ----
2 2
– 4 brake accumulator
43.9 / 1.728
11.0 / 0.433
2.0 / 0.079
13.1
3
Low and reverse brake fail (B)
22.0 / 0.866
7.0 / 0.276
0.6 / 0.024
10.0
4
Reverse stall
31.5 / 1.240
7.0 / 0.276
1.0 / 0.039
12.8
5 Low and reverse solenoid brake
accumulator
31.4 / 1.236
9.8 / 0.386
1.3 / 0.051
9.3
6
Pilot
32.0 / 1.260
11.0 / 0.433
1.3 / 0.051
9.2
7
Low clutch solenoid accumulator
31.4 / 1.236
9.8 / 0.386
1.3 / 0.051
9.3
8
Low clutch amp (A)
23.0 / 0.906
11.0 / 0.433
0.5 / 0.020
13.2
9 2
– 4 brake fail (B)
24.8 / 0.976
8.5 / 0.335
0.9 / 0.035
7.8
10
Lock-up control
27.0 / 1.063
14.0 / 0.551
1.1 / 0.043
5.7
11 2
– 4 brake amp
23.0 / 0.906
11.0 / 0.433
0.5 / 0.020
13.2
12
High clutch amp
23.0 / 0.906
11.0 / 0.433
0.5 / 0.020
13.2
13
High clutch solenoid accumulator
31.4 / 1.236
9.8 / 0.386
1.3 / 0.051
9.3
Reassembly steps
•
Coat the parts with ATF before installing them.
•
Install the control valve to the upper body.
•
Install the 11 steel balls and spring to the upper body.
UNIT REPAIR (JR405E) 7A4-23
CONTROL VALVE LOWER BODY
10CV11
Legend
1. Retainer plate, spring, and steel ball
2. Retainer plate, plug, spring, and
pressure regulator valve
3. Retainer plate, spring, and high clutch
accumulator
4. Retainer plate, plug, low and reverse
brake fail valve A, and spring
5. Retainer plate, plug, spring, and fail
valve
6. Retainer plate, plug, low and reverse
brake amp valve, and spring
7. Oil pressure switch
8. Oil filter
9.
Solenoid
10. Line pressure solenoid
11.
Lock-up
solenoid
12. Harness bracket
13. Solenoid fixing plate
14. Harness assembly
15. Retainer plate, plug, spring, and 2-4
brake fail valve A
16. Retainer plate, plug, spring, and low
clutch amp valve B
17. Retainer plate, spring, and torque
converter relief valve
18.
Oil
strainer
19. Control valve lower body
20. Retainer plate, spring, and 2-4 brake
solenoid accumulator
21. Oil pressure switch
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