Siruba FA007 - Standard Adjustm Ents; Needle Bar Height Adjustment

~7~
~STANDARD ADJUSTMENTS)
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Make an adjustment so that. when needles e are down lowe st , loopers . reach th e end of their backward trav el and the dis·
tance
fr om the n ee dle ce nter to the looper tip is 3.2 to 3.5 mm.
(Adjusting m•thod)
I. Remove the pr esser foot, needle pl ate and feed d ogs .
2. Loosen
two set sc rews 8 and cap screw e on lower belt wheel e.
3. Turn the pulley toward yourself until needles e come down to the lowest pos it ion.
4.
Turn the lower-sh aft until loopers 8 reach the end of th eir bac kward travel.
5.
Tight en ca p sc rew e and two set screws 8 securely.
6. Loosen
set screw •. move looper holder 8 in the arr ow direction until the distance between the needle cen ter and the looper
tip is 3.2 to 3.5 mm, and ret ighten set sc rew • securely.
f2] Needle Bar Height Adjustment
•
Looper forward travel
Looper backward travel
Adju st the needle bar height so that the looper thread eyes will match the needle eyes in the f or ward and backward travels of
the loopers.
(Adjusting m•thod)
1. Turn the pulley toward yo ur self until the loopers move forward from the rightmost position to a point where the looper
thread
eyes are in line with the needles eyes.
2. Open face plate e. loosen needle bar clamp screw e. and move need le bar e up or down until the looper thread eyes are
in line with the n ee dle eyes.
3. Retighten needle
bar cl amp screw e securely.
4. After the adjus tment , tum the pulley t owa rd yourself and· mak e sure that the looper thread eyes mat ch the needle eyes in the
forward and backward travels of the loopers.
From the library of: Superior Sewing Machine & Supply LLC