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4-11. Adjusting the amount of oil in the hook
1) Detach the hook maintenance cover.
2) The oil amount is increased by turning screw
❶
in
the direction of arrow
A
, or decreased by turning
it in the direction of arrow
B
.
3) After you have adjusted the amount of oil in the
hook, attach the hook maintenance cover.
1. After the adjustment, check the oil quantity by running the sewing machine idle for
approximately 30 seconds, as well as by checking it in comparison with the sample showing
the adequate oil quantity. (Refer to
"4-10. How to check the amount of oil in the hook" p. 22
2. In the case of adjusting the hook oil quantity, firstly adjust the oil quantity by turning oil
quantity adjustment screw in the direction of arrow
A
to increase it. Then, adjust the hook oil
quantity by turning the adjustment screw in the direction of arrow
B
to decrease it.
3. The hook oil quantity has been factory-adjusted at the time of shipment, based on the
maximum sewing speed of sewing machine. When the customer always operate the sewing
machine at a low speed, the hook oil quantity may run short causing a sewing machine failure.
To prevent such a failure, adjustment of the hook oil quantity is required when the customer
runs the sewing machine at a low speed at all times.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
A
B
