Rotary hook lubrication adjustment
To adjust the lubrication of the rotary hook, turn
the adjustment
screw
O to appropriatelyincrease
or
decrease
the
oil flow.
Turning
the
screw to
the
right increases the oil supply, to the left decreases
the
oil supply.
Decrease
«
^^~~Wttlncrease
[I2]
Tension
pulley
adjustment
If the tension pulley is not properly adjusted, the machine may stop running. Furthermore, if
greater than is necessary,excessiveload will be applied to the machine thus adversely affecting
durability.
With the machine in
the
stop
position, loosen bolt
^nd adjust the tension pulley
arm
position O so
that the tension pulleybracket O to tension pulley
arm O gap is
10
~
15
mm whenthe tension pulley
bracket O is turned in the
arrow
direction
and
tension is applied to the flat belt
O.
lb
mm
the
tension
is
the
machine's
i]
Bobbin
winder
adjustment
Ifthe
bobbin
winder
isnot properly adjusted,the bobbinthread maynot
wind
ontothe bobbin,or it may
wind
unevenly on to
one
side
of
the
bobbin.
1.
When
the bobbin
will
not
wind
inidlingconditionofthe
machine
eventhoughthebobbinwinderstop latchO is
pressed,
stopthe
machine
and
remove
the
two
set
screws
O;
next,
adjust
the
bobbin
winder
base
O
position
forward
or
back.
2. Iftoo
much
thread iswoundonto the bobbin,loosenset
screw
and
move
the bobbinwinderstoplatchO in
or
out
to
adjut
the
amount
of thread appropriately.
3. Ifthe
thread
is
wound
onto the
bobbin
unevenly,
loosen
set
screw
0,
and
vertically
adjusttheposition ofthe
bobbin winder guide
O.
-54-
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