1) WHEN THE BUTTON IS
PRESSED WITH THE NEEDLE BAR
AT ìUPî POSITION, THE NEEDLE BAR
VIBRATES AND THE NEEDLE DROP
IS SET AT CENTER POSITION.
(ZIGZAG STEPPING MOTOR)
2) WHEN THE BUTTON IS
PRESSED WITH THE NEEDLE BAR
AT ìMIDDLEî POSITION, THE
TENSION DISC IS CLOSED.
(TENSION STEPPING MOTOR)
3) WHEN THE BUTTON IS
PRESSED WITH THE NEEDLE BAR
AT ìDOWNî POSITION, THE FEED
DOG VIBRATES AND THE FEED DOG
IS IN THE MIDDLE OF ITS TRAVEL
(FEED STEPPING MOTOR)
PRESS THE ìCLEARî BUTTON TO
PROCEED TO THE NEXT STEP.
Step8 Solenoid
Sol1
OFF OFF OFF
Sol2 Sol3
2 31
Step9
BM Phase
Stepping Motor
M
Step9
Stepping Motor
M
Step9
FM Phase
Stepping Motor
M
8. STEP 8
(SOLENOID)
9. STEP 9 (STEPPING MOTORS)
PRESS A NUMBER
CORRESPONDING TO THE
SOLENOIDS
1) FOR AUTO-THREAD CUTTER
SET THE NEEDLE BAR AT THE
LOWEST POSITION.
PRESS THE BUTTON(1)
WHEN THE DRIVING ARM IS AT:
UP: OFF
DOWN: ON
[CORRECT CONDITION]
(1)
(2)
(3)
2) FOR BOBBIN SPINNING IDLE
PREVENSION LEVER REMOVE
THE HOOK COVER PLATE.
PRESS THE BUTTON (2)
WHEN THE LEVER IS AT THE:
RIGHT: OFF
LEFT: ON
[FAULTY CONDITION]
THE DRIVING MECHANISM DOES
NOT FUNCTION.
–REMEDY–
CHECK IF THE CONNECTING
PARTS MOVES PROPERLY.
REPLACE A SOLENOID OR THE
CIRCUIT BOARD A.
[CORRECT CONDITION]
[FAULTY CONDITION]
THE DISPLAY SHOWS “E1 Error”,
“E2 Error” OR “Error2”.
–REMEDY–
CHECK THE STEPPING MOTORS
IF THEY ROTATE SMOOTHLY.
REPLACE THE STEPPING MOTOR.
REPLACE THE CIRCUIT BOARD A.
(1)
(2)
(3)
AUTO THREADER CUTTER COVER
3) FOR UPPER SHAFT
SET THE NEEDLE BAR AT THE HIGHEST POSITION.
WHEN THE ACTIVATING ROD IS AT THE POSITION OF:
UP: OFF
DOWN: ON
PRESS ìCLEARî BUTTON TO PROCEED TO THE NEXT STEP.
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