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8. ELECTRIC MECHANISM
Erro
r status #9 Work clamp does not rise.
Probable causes Check/ repair/ adjust Parts to be replaced
<Solenoid specifications>
3. Work clamp is not raised
although attempted, when no
error code appears or error
code E-61 appears on the
display window.
• Presser bar lifter solenoid
defective
KE-430B, 430C series
184
a.
If it does not rise because of mechanical
problem, see “5-22. Adjusting the posi-
tions of the presser solenoid.”
b. Separate P5 (SOL) connectors on the
main circuit board, and measure the
resistance between pins 3 and 4 in the
connector on the cable.
If the resistance is 2–3 ohms, there is no
problem. After measurement, rejoin P5
connectors.
If the resistance is 0 ohms (it means a
short circuit), replace the main circuit
board with a new one because it may be
defective.
c. If the work clamp lifter solenoid does not
operate at all, the main circuit board is
defective.
Work clamp lifter sole-
noid
Main circuit board
Main circuit board
<Pneumatic specifications>
4. The air valve is defective. • Pull out connector P14 (AIR) on the main
circuit board and measure the resistance
between the following pins in the
connector on the cord:
Pins 1 and 10 (air valve for right work
clamp)
3641
Q
Pins 2 and 10 (air valve for left work
clamp)
Pins 3 and 10 (air valve for presser foot)
The resistance in each case should be
300 – 400 .
Air valve harness
assembly
5. The main circuit-board IC is
defective.
• Disconnect connector P14 (AIR) from the
main circuit board, then turn on the power
and measure the voltage between the
circuit board connectors while turning the
work clamp switch on and off.
Pins 1 and 10 (air valve for right work
clamp)
Pins 2 and 10 (air valve for left work
clamp)
Pins 3 and 10 (air valve for presser foot)
3642
Q
The voltage in each case should be +20V
to 24V.
(The solenoid valve LED will light while
the power is on.)
After measurement, turn off the power,
wait at least 5 minutes, and insert P14.
Main circuit board
Error status #10 Work clamp does not lower. (Solenoid specifications only)
Probable causes
3643Q
Check/ repair/ adjust Parts to be replaced
1. Work clamp is not raised
when error code E-62
appears on the display
window.
• Same as #9-3.
2. Work clamp is not lowered
although attempted when
error code E-63 appears on
the display window.
• Same as #9-2.