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HE-800A
16. TROUBLESHOOTING
109
Cause Check Remedy Page
Feed home position
sensor
Feed home position
sensor position
Adjust the feed home position sensor position.
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Feed timing belt Feed timing belt tension Adjust the feed timing belt. -
ውዒ
-
ዎዓ
. Needle does not zigzag or noise occurs when needle zigzags
Cause Check Remedy Page
Zigzag home
position sensor
Zigzag home position
sensor position
Adjust the zigzag home position sensor position.
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Stopper Stopper position Adjust the stopper position. -
ውዒ
-
ዎዔ
. Sewing machine stops during sewing
Cause Check Remedy Page
Thread breakage
detector
Thread breakage detector
position
Adjust the thread breakage detector position.
* If the detector is not adjusted, sewing may stop
even when the thread is not broken.
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Pauses Panel DIP switch A - No.
3
When panel DIP switch A - No. 3 is set to ON,
sewing will pause when the treadle is depressed
backward.
* If the treadle is depressed very firmly and then
released, the pedal may depress backward and
cause sewing to be paused.
81
Threading Upper thread threading Pass the thread correctly through the thread guide. 58
Error [E-07] Upper thread scissors
operation
Apply grease to the inclined face of the opening
cam.
76
ውዒ
-
ዎዕ
. Upper shaft does not rotate as far as the needle up stop position
Cause Check Remedy Page
Thread retainer and
rotary hook are
touching.
Thread trimmer
mechanism position
Turn the machine pulley backward to set the
needle bar to the needle up position.
Push the thread driving arm in the direction of the
arrow to set the thread trimming mechanism to
the home position.
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4109M
Thread driving arm