JUKI DLN-6390 User Manual

20
• Sample showing the appropriate amount of oil
1) The sample shown in the gure on the left side is the
amount of oil adjusted at the time of delivery.
Check the amount of oil before using the machine and
re-adjust the amount of oil appropriately according to
the condition of use. (If the oil amount is inadequate,
the hook can be seized (the hook becomes hot). If the
oil amount is excessive, the sewing product can be
stained with oil (oil leaks))
2) Adjust the amount of oil in the hook so that the oil
amount (oil splashes) should not change while check-
ing the oil amount three times (on the three sheets of
paper).
• Adjusting the amount of oil (oil spots) in the hook
1) Turning the oil amount adjustment screw in the “+” di-
rection (in direction
A
) will increase the amount of oil (oil
spots) in the hook, or in the “–” direction (in direction
B
)
will decrease it.
2) After the amount of oil in the hook has been properly
adjusted with the oil amount adjustment screw, make
the sewing machine run idle for approximately 30 sec-
onds to check the amount of oil in the hook.
4 to 5mm
Splashes of oil from the hook
(2) Adjusting the amount of oil in the hook
1
Amount of oil (oil splashes) conrmation paper
2
Position to conrm the amount of oil (oil splashes)
＊
Use any paper available regardless of the material.
＊
When performing the operation of 2) below, remove needle thread from the thread take-up lever to needle and
bobbin thread. Then be careful to check the machine with the presser foot lifted. At this time, be careful not
to allow your ngers to touch the hook.
1) If the machine has not been sufciently warmed up for operation, make the machine run idle for approximately three
minutes. (Moderate intermittent operation)
2) Place the amount of oil (oil splashes) conrmation paper under the hook while the sewing machine is in operation.
(Section
A
in the direction of the arrow mark (
→
))
3) Conrm that the height of the oil surface in the oil reservoir is within the range between “H” and “L”.
4) Conrmation of the amount of oil should be completed in ve seconds. (Check the period of time with a watch.)
WARNING :
Be extremely careful about the operation of the machine since the amount of oil has to be checked
by turning the hook at a high speed.
A
Approx. 25 mm
Approx. 70 mm
A
B

JUKI DLN-6390 Specifications

General

Brand	JUKI
Model	DLN-6390
Category	Sewing Machine
Language	English