[amayausers.com] Re: XT not catching bobbin thread
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- Date: Sun, 29 Nov 2009 16:06:47 UT
This message was posted by Rod or Sharon on AmayaUsers.com. PLEASE DO NOT REPLY
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Margaret,
Ed is right....it is kind of like the old saying .....The foot bone connected
to the ankle bone, the ankle bone connected to the leg bone...etc...
There are a lot of moving parts that muct all work together to make it all work
properly.
What you were referring specificly to was probably the "Selector". The
adjustment of the stroke and position of the selector during it's firing
sequence is critical to it's performance. The pushrods that move the knife &
selector must not be bent or broken and the housings for these pushrods must be
tight and securely fastened.
When everything is adjusted "right", then operator varibles can/may come into
play. Ed mentioned some of them. The use of adhesive spray, bobbin tension
and/or type, standard or auto acti-feed settings, style of tie-in----tie-off's,
hooping, threadfeed roller lubrication and digitizing issues are some others
that come to mind.
The best thing to do when dealing with the "trimmer" function, is to run the
Melco Amtrim test pattern and document where the failures, if any,
are...ie....which needle, etc. Use an 18cm hoop and three pieces of medium to
heavy cut-a-way backing, hooped tightly...no tear-a-way backing allowed for
these tests!! Presser foot down, speed at 1200spm, poly thread...no rayon
allowed, bobbing tension set correctly, the trimmer assembly cleaned and
lubricated properly....in short, you must eliminate the varibles involved to
find which one(s) are causing the problem.
Rod Springer
Amaya Tech & Trainer
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