Alfa Network A1930 - Attaching the Needle

4
WARNING
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start
of the sewing machine.
• Sample showing the appropriate amount of oil
1) The amount of oil shown in the samples on the left should be finely
adjusted in accordance with sewing processes. Be careful not to
excessively increase/decrease the amount of oil in the hook. lf the
amount of oil is too small, the hook will be seized (the hook will be
hot). If the amount of oil is too much, the sewing product may be
stained with oil.
2) Adjust the amount of oil in the hook so that the oil amount (oil
splashes) should not change while checking the oil amount three
times (on the three sheets of paper).
• Adjusting the amount of oil
1) Turning the oil amount adjustment screw attached on the hook
driving shaft front bushing in the “+” direction (in direction A), will
increase the amount of oil (oil spots) in the hook. In contrary, in the “-“
direction (in direction B), will decrease it.
2) After the amount of oil in the hook has been property adjusted with
the oil amount adjustment screw, make the sewing machine run idle
for approximately 30 seconds to check the amount of oil in the hook.
8. ATTACHING THE NEEDLE
Choose a proper needle size according to the
count of thread and the type of sewing material
used.
1) Turn the handwheel until the needle bar reaches to
the highest point of its stroke.
2) Loosen screw 2, hold the needle 1 with its intended
part A facing to the right in direction B.
3) Insert the needle in direction of arrow until it will go
no further.
4) Tighten screw A.
5) Make sure the long Groove C of the needle is facing
to the left of direction d.
Splashes of oil from the hook
Appropriate amount of oil (small)
Appropriate amount of oil (large)