
57
CAUSES OF TROUBLE AND TROUBLESHOOTING
11
Wrong Machine
Operation and
Movement
Wrong Stop
Position
①
Excessive relaxation of the
belt tension or belt rupture
②
Power outage or circuit fuse
cut
③
Failure to detect the needle
position signal or detect the
signal once
④
Frame escape from the X, Y
movement limit.
⑤
Machine does not move
even after pressing the bar
switch.
①
Loose main shaft driving
belt
②
Wrong encoder position and
wrong encoder
■
Adjust the belt tension and
replace the belt
■
Check whether the main
shaft motor drive fuse is
cut, and replace the fuse
■
Execute manual color
change. Locate the needle
at the highest position.
Check whether the signal
lamp (needle set and
concerned signal lamp
LED) blinks, and adjust the
half-turn film accordingly.
■
Return the frame to the
original position (within the
scope of the limit switch).
■
Check the operation status
of the limit sensor
■
Check the wiring of the
switch related to bar stitch
and the connector
■
Adjust the belt tension
■
Adjust the encoder position
or replace the encoder
■
Check the belt
depending on type of
trouble
①
Main driving belt
②
X-Y shaft timing
belt
Corrective Action and Check Point
Cause of Trouble
Type
Remarks
When a breakdown occurs, conduct repair or check in accordance with the
safety rules.
CAUTION
DANGER