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UNIT REPAIR (AW30–40LE) 7A4–97
Disassembled View
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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
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7A4–98 UNIT REPAIR (AW30–40LE)
E nd O FCallo ut
Disassembly
1. Remove by-pass valve and spring.
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2. Remove three strainers.
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NOTE: Confirm six retainers are installed correctly.
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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
Page 3907 of 4264
UNIT REPAIR (AW30–40LE) 7A4–99
6. Remove the retainer (5).
Remove the spring and ball from the valve body.
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Page 3908 of 4264
7A4–100 UNIT REPAIR (AW30–40LE)
7. Remove the 1–2 shift valve retainer (12) with a
magnetic finger by pushing the plug.
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8. Remove the plug, spring and 1–2 shift valve.
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9. Remove the retainer (16) for low coast modulator
valve by pushing the spring with a screwdriver.
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10. Remove the spring and low coast modulator valve.
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UNIT REPAIR (AW30–40LE) 7A4–101
11. Remove the retainer (19) for accumulator control
valve with a magnetic finger by pushing the plug.
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12. Remove the plug(20), spring(21) and accumulator
control valve(22).
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13. Remove the retainer (23) for solenoid modulator
valve(25) by pushing the spring with a screwdriver.
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14. Remove the spring(24) and solenoid modulator
valve(25).
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7A4–102 UNIT REPAIR (AW30–40LE)
15. Remove the retainer(26) for cut back valve(29) with
a magnetic finger by pushing the plug.
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16. Remove the plug(27), spring(28) and cut back
valve(29).
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17. Place a mark on the top of sleeve(31) and the
retainer (30) for primary requlator valve(36) where
they are positioned.
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NOTE: When reassembling, position the retainer in the
same position.
Remove the retainer(30) with a magnetic finger by
pushing the sleeve.
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UNIT REPAIR (AW30–40LE) 7A4–103
18. Remove the sleeve(31) with the plungers(32)(33),
spring(34) and washer.
Remove the two plungers(32)(33) from the sleeve.
Remove the primary regulator valve(36) from the
valve body(37).
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Inspection and Repair
1. Inspect strainer
Inspect strainer for residual adhesive and damage,
and clean and replace as necessary.
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2. Inspect valve springs
Check for damage, squareness, rust and distorted
coils.
Measure the spring free length and replace if less
than shown below.
mm (in)
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SpringFree
lengthColor
(1) By-pass valve21.3
(0.839 )YELLOW
(2) Steel ball20.5
(0.807 )WHITE
(3) 1–2 shift valve 30.8
(1.213 )PURPLE
(4) Low coast modulator valve30.4
(1.197 )LIGHT
GREEN
(5) Accumulator control valve33.8
(1.331)—
(6) Solenoid modulator valve 26.6
(1.047)LIGHT
BLUE
(7) Cut back valve 34.0
(1.339)DARK
BLUE
(8) Primary regulator valve38.58
(1.519)WITHE
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7A4–104 UNIT REPAIR (AW30–40LE)
Reassembly
1. Install the washer(35) onto the primary regulator
valve(36).
Install the primary regulator valve(36) with the
washer(35) into the bore of lower valve body.
Install the two plungers(32)(33) into the sleeve(31).
Align the mark on the top of sleeve(31) with the
mark on the retainer(30).
Install the sleeve(31) with the two plungers(32)(33)
and spring(34) into the bore.
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2. Install the retainer(30) by pushing the sleeve.
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NOTE: Install the retainer (30) to the same position on
the top of sleeve(31), as when disassembling.
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3. Install the cut back valve(29), spring(28) and
plug(27) into the bore.
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