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(4) After removing the face cover, turn the hand pulley (No.4) and stop it to the position where the needle
bar upper position. In this state, the crank rod of needle bar (No.9) becomes vertical.
(5) Confirm the clearance between main shaft detector (No.1) and detector plate (No.2) is in the range of 1 to
1.5 mm. If it is not correct, loosen the detector attaching screw (No.7) and adjust the clearance.
(6) Keep the needle bar position upper and move only the detector plate (No.2) little by little in the
direction of arrow from the state of <A> as showing in below drawing. Stop the detector plate (No.2)
and tighten the screw (No.3) at the position where the detection lamp lighted which has m
detector (No.1). In this state, the detector plate (No.2) is in the state of <B>.
View a
<A>
(7) After adjustment, attach the detector cover and continue the adjustment according to the next
paragraph [6-2-3. Adjustment of the timing between the hook and the needle motion].
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
<9>
<8>
<8>: Needle bar
<9>: Crank rod of needle bar
<B>
No detecting
(Lamp off)
- 19 -
Detecting
(Lamp lighting)
ain shaft
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