problem.
lt
is all
relative. The heavier the leather, the
heavier the
needle and thread.
The lighter
the
leather, the lighter the
needle and thread.
Tensions
6)
The thickness of the
leather
that
you
are sewing will dictate
the
amount
of tension
that
you
will need. You should loosen the tensions
for lighter leather.
Your
tensions
work in
conjunction
with
each other, so
you
should
loosen or tighten both
tensions
when adjusting
them.
You
should
never loosen
or tighten
more than 1
full turn
at a time.
lf
you
run
into
a
problem
with
your
tension
and
you
are
not sure which way to turn
or
you
just
can't seem
to
get your
tension
back
where
they
were,
then
it is time to
re-
calibrate
them.
This is
a
simple
task.
To
re-calibrate
your
tensions, remove both knurled
tension
nuts completely, then
put
them
both back on the
machine
until they
just
come
in
contact
with
the tension
spring
and stop. Sew
a
test
piece.
You
will
probably
find that the stitch
is toose,
but
this
is what
we
want.
You are now able to adjust
your
tension
by
tightening
them
both 1 turn at
a
time untilthe
stitch
pulls
up.
You
may
also experience bobbin tension
problems.
lf
you
have
tightened the bobbin
tension as far
as
you
can, and
stillthere is not enough tension
(the
bobbin thread
is
visible
on top
of
the leather),
you
may
have
to
clean
out under the bobbin case spring.
After hundreds
of
yards
of thread
pass
under the bobbin case
spring,
microscopic fibers
of thread, along with leather
dust and other debris,
start
to collect
under the bobbin
case spring
causing the spring
to spread and
give
false
tension.
lf
this is the case,
then
you
will
have
to
remove
the spring, clean out the debris, and
may
have
to bend the
spring
to
put
more
pressure
on
the thread
which
will
give you
more
tension and allow
you
to be able to
adjust
your
bobbin tension as
well. You may have to
purchase
a
new
bobbin case
spring if re-shaping
your
existing spring does not work.
Shuttle
Hook
7) lt is very important
that
your
shuttle hook is in
excellent condition. lf
your
hook has
burrs, or scratches, then
you
must buffthem
offto
make
your
hook
smooth again so the
thread will
pass
over
the hook with
ease.
lf
your
thread
is
fraying,
then a burr
is most
likely the
problem.
The
thread will
pass
over the burr and then
get
caught, causing
a
couple of the
strands to break. You should run
your
finger
nail over the top, sides,
under, and at the
point
of the hook when feeling
for burrs.
The shuttle hook
travels in
the
race
assembly. You
should clean out the
race assembly
frequently.
The race
assembly must
be
clean,
smooth, and oiled to assure the best
sewing
results.
To Next Page
Loading...