Workshop Dobby Loom User’s Manual
Additional Loom Information
Troubleshooting
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sure yours is set to match the
characteristics of the yarn
used.
2) Bobbins not wound
consistently.
If it’s soft on the end and the
wraps collapse and pull into
one another, you will have to
wind it again. Use an AVL
Bobbin-Winding Guide.
B) One side of your
fabric is beaten more
tightly than the other,
even if you are
holding your beater in
the middle. You have
a diagonal beat line
rather than
horizontal.
1) Your beater is out
of alignment.
To check, push your beater all
the way back against the
Beater Bumper Blocks, it
should strike both sides at
exactly the same time. If it
doesn’t, you’ll need to adjust
the bolts holding the beater to
the loom.
Dobby
Symptom
Possible Cause
How to Fix It
A) Dobby skips.
1) Pressing too hard
or too quickly on the
treadles.
Press the treadles with a
smooth, rhythmical motion.
B) Dobby slide plate
jams.
1) Left treadle out of
adjustment.
Check routing of left treadle
cable. Make sure it is still in
the pulley with keeper inside
the Compu-Dobby box.
Left Treadle Issues
If you do not fully depress the left treadle each time you lift, you will
experience problems with your harnesses. Because the left treadle is
unweighted, it’s easy to forget that you need to do this. However, this
treadle does something very important — it releases the harnesses that
were engaged for the previous pick, but only in the last fraction of its stroke.
So, if you seem to be experiencing harness lifting problems, your use of the
left treadle is the first thing to suspect.