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 PointCause of TroubleType Remarks
When a breakdown occurs, conduct repair or check in accordance with the
safety rules.
CAUTION DANGER
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