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 TM 10-3930-638-24&P
4-4. TRANSMISSION MAINTENANCE (cont)
j. Control Valve Assembly (cont).
LOCATION
STEP
ITEM
REMARKS
ACTION
CLEANING (cont)
15
All parts
Clean
Use cleaning solvent P-D-680. Immerse
parts in cleaning solvent and move slowly
up and down until parts are thoroughly
cleaned. Dry parts thoroughly using
compressed air or clean cloths
INSPECTION
16
Control valve housing
Inspect
Inspect seats and spool bores for cracks
assembly (25)
and wear, damage and distortion. If any
of these conditions are observed, replace
part
17
Declutch valve spool (12), Inspect
Inspect for wear, damage, bent or broken
speed selector spool
condition and distortion; if any of these
conditions are observed replace part
(14), and forward and
reverse spool (16)
18
Inspect
Inspect for flat or out of round condition,
Detent balls (2)
cracks, or other damage. Replace if any
of these conditions are observed
Detent springs (1)
19
Inspect
Replace if cracked, worn, distorted, broken
or permanently set
and balance
spring (22)
Back-up alarm
20
Inspect
Check for cracked insulating material
switch (3)
around body or terminals. Check for
loose, missing, or corroded terminals.
Replace if any of these conditions are
observed
21
Neutral start
Inspect
Check for cracked body and corrosion in
switch (6)
terminal contact area; replace if any of
these conditions are observed
22
All other parts
Inspect for wear, damage, cracks, and
Inspect
distortion; replace part if any of these
conditions are observed
4-231
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