Adjustment Of The Lubrication For The Rotating Hook - JUKI PLK-G2516R Technical Manual

7-4 Adjustment of the lubrication for the rotating hook

(1) Open the cylinder cover (No.1).
(2) Tighten the oil flow adjusting screw (No.2) lightly by fingers or a screw driver until it is stopped the turn.
NOTE Do not tight the oil flow adjusting screw (No.2) too much.
(3) Adjust the oil flow in the range of one reverse turn from the deadlock position of the oil flow adjusting
screw (No.2). The oil flow is decreased if loose the oil flow adjusting screw (No.2).
(4) It can be checked the oil flow with the situation that the oil splashes on the paper covered over the
running rotating hook.
(5) After the adjustment, close the cylinder cover (No.1).
[Notice] The oil flow is adjusted for the sewing speed at 2,300rpm as the factory default setting. When
using other speeds, adjust the oil flow each time.
<2>
<1>
A: The deadlock position of the oil flow adjusting screw
(No.2)......Maximum flow
B: The two reversing turn position of the oil flow adjusting screw
(No.2)......Standard flow
C: The four reversing turn position of the oil flow adjusting screw
(No.2)......Minimum flow
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<1>: Cylinder cover
<2>: Adjusting screw
A B C