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Siruba VC008A Instruction Book / Parts List page 24

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當 針由下始點 開始 往上移 ,且勾針由後始點
往 前 移至如 ( 圖 2 1)A 所示之位置時。勾針尖
與針 孔上方之距 離為 1.5 m m。
當 針 由上始點開始 往下移,且勾針 由前始點
往 後移至如 ( 圖 21)B 所示位置時, 勾針尖 與
針孔 上方之距離為 3m m,以上即為正確 之
關 係 位置,即勾針在針中心位 置往回時, 差
1 .5mm。
調 整 時,將偏心凸輪 A 的固定螺絲 B 放鬆,
前 後調整即可調整 期間之 時位關係。( 圖 22 )
P19
TIMING POSITION OF THE NEEDLE
AND THE LOOPER
When t he needle sta rt s moving up from
t he lower dea d point,a nd t he loope r
st arts moving forward from t he rea r
dea d point t o t he p osition A show as t he
Fig.21,the dis tance from the loop er to p
t o t he up per point of t he needle ho le is
1 .5mm.
When t he needle moves down,and th e
looper moves ba ckward from the fro nt
t o the position B shown as F ig.21,th e
distance from the looper to the upp er
point of t he needle hole is 3 mm.That is
the correct correlationship position,which
means the looper is 1.5 mm awa y from
t he ne edle c ent ra l position.
While adjusting,loosen the fixed screw
B of the eccentric A and move the
ecce ntric A back and fort h to ad just th e
t ime correlation p osition.(F ig.22)
圖 21/Fig.21
圖 20/Fig.20
圖 22/Fig.22

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