Butterfly B1501B/T, Руководство по эксплуатации и обслуживанию

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Butterfly B1501B/T - Single Head 15 Needle Embroidery Machine Manual
Step 16 – Bring the thread back down, past the check spring to the bottom of the head and
through the last thread guide/eyelet
Step 17 - Place the thread through the needle eye from the front to the back. It is
recommended that you cut the thread at a 45 degree angle to give it a point. Once you cut the thread,
use your fingers to straighten out the end. Hold the thread with your index and thumb leaving about 1 –
1 ½ inches out keeping the thread at straight as possible as you pass it through the needle. Once thru
the needle, pass it through the needle bar hole.
Step 18 – Place the thread in between the long spring at the bottom of the machine. There is no
need to wrap it in the spring and it is recommended placing it into the spring gently without much
tension. The spring is only used to temporarily hold the thread. Cut the thread at the end leaving about
1/3 inch extra.
Step B – Continue with the next spool of thread, threading in the same manner as the previous
thread.
Further examples are shown on the next page.
2.8.2 Upper Thread Tension
The upper thread tension refers to how tense or tight the thread feels when you pull it through
the very last thread guide eyelet when the thread is properly threaded. There are many metrics for
measuring this. However, the final metric usually just depends on what the final embroidery looks like.
Video - https://www.youtube.com/watch?v=QUhrdECHOWI
Upper thread tension is completely different between one cone and the next and the tensions
change as the thread is used. Therefore, the tensions must constantly be checked. Because the
B1501B/T has 15 needles and only one bobbin, it is always best to preset the bobbin tensions (next
section) first and then change the upper threads to conform to the bobbin tension. In other words,
once the bobbin is set, it should not be adjusted much. Each time the bobbin is changed, it may need to
be set again. The operator should always recheck bobbin tensions when changing the bobbin (next
section).
When pulling the upper thread from the final thread guide eyelet hole (NOT through the
needle), the tension on the thread should feel about the same as if the other end of the thread was tied
to 3 US Quarters ($0.75), being dragged across a smooth surface. Generally you should start with
tightening both tension knobs at about 50% and then slowly adjusting from there. Once everything is
set, you should only adjust with the second tension knob located on the tension base. Minor
adjustments during and after embroidery will be required and should only be done with this second
knob.
When the machine is embroidering (assuming the bobbin tension is set) you can visually tell if
the tensions are set or need adjusting. It is common (and required) to make minor adjustments often. If
the thread appears to be loopy then the tension knob needs to be tightened. Typically it takes about ½
turn to make even a slight difference. If the thread appears too tight and/or there are a lot of thread