61
Poor detection of
upper thread
Bad jump
Bad stitch quality
①
Failure of thread detecting
roller
②
Poor connection and bad
quality of tension adjusting
plate
①
Bad solenoid and solenoid
wiring
②
Bad connection
③
Switch failure on tension
adjusting board and bad
circuit board
①
Bad tape data
②
Inadequate tension on X-Y
belt
③
Foreign substances in X-Y
rail
④
Failure of X/Y drivers
⑤
Heavy load on the frame
■
Disassemble the roller and
clean the roller and bush
bearing.
■
Check the plate connection
and change the circuit board
■
Check wiring and change
solenoid
■
Check connector
■
Change switch and circuit
board
■
Correct tape data
■
Adjust tension
■
Clean
■
Change X/Y drivers
■
Reduce speed of main shaft
rotation
Inspection & Repair
Cause
Error Type
Reference
Summary of Contents for MAN-12
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