Table of Contents
Advertisement
Display and
description of
error
① Obstacles such as dust, etc.
E076
Bobbin-thread
gather on the moving section.
winding is not
② Thread of the bobbin thread
carried out nor-
cone has run out during wind-
mally.
ing of a bobbin.
③ Thread has broken during
winding of a bobbin.
④ Thread wound on the bobbin
overflows from the bobbin
flange.
⑤ Bobbin fails to rotate.
⑥ Thread slips out of the roller of
bobbin thread feeding unit.
⑦ Bobbin thread feeding unit fails
to operate.
⑧ Thread has tangled on the
thread stand, etc. since the
thread has vibrated excessive-
ly halfway through threading
route.
① Cover is left opened.
E311
Cover of the
② Microswitch is not correctly
AW device is
positioned.
left opened.
③ Microswitch cable is discon-
nected.
④ There is no microswitch signal. ○ Check the microswitch signal.
Cause
○ Carry out maintenance referring to
○ Put the bobbin thread cone in place.
○ Referring to
○ Check the setting of bobbin-thread winding length.
○ Check whether or not the thread used in the previous
○ Referring to
○ If the thread tension is not sufficient, thread may
○ Check whether or not the connector, air tube, etc.
○ Check the threading route referring to
○ Check the cover status.
○ Check the position of the microswitch.
○ Check whether the microswitch cable is connected
– 45 –
Error handling procedure
p.39.
"3-2. How to thread the device with
the bobbin thread"
p.6, check the thread ten-
sion.
sewing still remains on the bobbin.
"3-3. How to set a bobbin"
check whether or not the bobbin is fitted in the bob-
bin case correctly.
slip off the roller. Check the thread tension.
coming from the bobbin thread feeding unit are
correctly connected.
to thread the device with the bobbin thread"
p.6. In particular, the roller and actuating arm,
etc. of the bobbin thread feeding unit are threaded
correctly.
to the AMS main PCB.
"4-2. Cleaning"
p.8,
"3-2. How
Advertisement
Table of Contents
