Standard Adjustment; Adjusting The Amount Of Oil In The Hook; Adjusting The Amount Of Lubricating To Face Plate Section - JUKI LZ-2290A-SR/IP-110D/SC-916 Instruction Manual

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
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 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.

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.
q
w
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) Remove stop plug 1 , and when lightly tightening
the adjustment screw 2 , return the screw by
approximately 0.6 turn from the stop position.
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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