Atlanta Attachment Company 1345-4B, Technical Manual & Parts Lists

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Technical Manual & Parts Lists
25
Setting the Distance from the Looper to the Needle
Sidewise Setting
When the looper is correctly positioned, the point of the looper just clears the scarf of the needle
on the forward stroke of the looper. To adjust, turn the machine pulley until the looper point is directly
opposite of the center of the needle. Loosen the looper holder screw, Fig. 25, and tap the holder to the
left or right until the correct clearance is attained. Then securely tighten the looper holder screw.
Move the looper to the extreme forward position. Check the clearance between the heel of the
looper and the loop deflector, Fig. 26, which should be approximately 1/16”. To adjust, loosen the two
looper set screws. Turn the looper to the left or right until the correct clearance is attained. Hold in
position and securely tighten the two set screws.
Caution: On single and multi-needle machines, make certain that the point of each looper just clears the
scarf of its respective needle. To adjust, with the looper point directly opposite the center of the needle,
loosen the two set screw, Fig. 26, and turn the looper slightly to the left or right. Then tighten the set
screws.
Lengthwise Setting & Setting the Height of the Needle Bar
When correctly set: the point of the looper should
be directly opposite of the center of the needle, and at
the center of the clearance above the eye of the needle
when the looper timing mark LT on the machine pulley
is opposite of the timing arrow on the arm.
To adjust the looper, loosen the looper carrier
clamping nut, Fig. 27. Move the carrier forward or
backward until the looper point is directly opposite of
the center of the needle. Then tighten the clamping nut.
To adjust the needle bar, first make certain that
the needle is inserted up into the needle bar or clamp as
far as possible. Loosen the two needles bar clamping
screws, Fig. 28, and raise or lower the needle bar to
correct position. Then tighten the clamping screws