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WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.
Trouble Cause Checking Corrective measures
10. When a heave-
weight material is
sewn, the material
warps.
10-1) Feed amount of the top feed is inade-
quate.
Decrease the feed dog height and reduce the feed
amount of the bottom feed.
11. Length of needle
thread remaining
at the needle is too
long. As a result, the
remaining needle
thread is left on the
right side of the
sewing product.
11-1) The thread clamp releases the needle
thread while the operator is taking out
the sewing product from the sewing
machine with the presser foot lifted. In
this case, the needle thread is drawn
together with the sewing product.
Change the thread clamp ON retention time while
the presser foot is being lifted and the sewing prod-
uct is being taken out from the sewing machine,
according to the length of the sewing product.
For the LU-2828-7, change the setting of "SC-922
function setting No. 173 : Thread clamp ON reten-
tion time".(Only LU-2828-6 and 2828-7)
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