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8. STANDARD ADJUSTMENT
8-1. Adjusting the amount of oil in the hook
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
Decrease
Increase
1
8-2. Adjusting the amount of lubricating to face plate section
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
It is not necessary to adjust the amount of lubricating to face plate section since it has been factory-adjusted at
the time of delivery. (Oil amount adjustment screw 2 in the face plate section lubricating tank is hidden with stop
plug 1 since it is not necessary to be adjusted.)
When the adjustment is performed by mistake (mistaken as the adjustment of oil amount in the hook), re-adjust
as shown below.
1
124
2
Adjustment of the amount of oil in the hook is performed
with oil amount adjustment screw 1.
(1) Adjustment procedure
Tighten (turn clockwise) oil amount adjustment
screw 1 to increase the amount of oil in the hook,
or loosen (turn counterclockwise) to decrease it.
1. When adjusting the amount of oil in the
hook, perform the adjustment in a way
of reducing the oil amount after
somewhat increasing it.
2. The amount of oil in the hook has been
adjusted at the max. number of revolution
at the time of delivery. When you always
use the sewing machine at low speed, there
is a possibility that trouble occurs due to
the lack of amount of oil in the hook. When
the sewing machine is used always at low
speed, perform the adjustment of the
Cau tion
amount of oil in the hook.
3. There is a possibility of causing oil leakage
from the hook shaft section since oil does
not return to the oil tank when oil amount
adjustment screw 1 is used in fully-
tightened state. Do not use the screw in
fully-tightened state. In addition, when the
amount of oil in the hook is not obtained
unless oil amount adjustment screw 1 is
near in fully-tightened state, it is considered
that hook shaft oil wick (JUKI Part No.
11015906) is clogged or the like. Replace
the hook shaft oil wick. For the replacing
procedure, refer to (10) Replacing the hook
shaft oil wick of 9. MAINTENANCE.
1) Remove stop plug 1, and when lightly tightening
the adjustment screw 2, return the screw by
approximately 0.6 turn from the stop position.
Cau tion
Lightly tighten the screw 2. Be careful
that it is not excessively tightened.
2) In case of the normal state, the flow of oil can be
confirmed (direction of the arrow in the illustration).
In case the flow is stopped, be sure to adjust. (Worn-
out of the mechanism of face plate section will be
caused.)
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