Atlanta Attachment Company 1344S88, Техническое руководство и перечень запасных частей

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Technical Manual & Parts Lists
24
Timing Looper Driving Crank
When the looper driving crank is properly
timed, the point of the looper will pass above the eye
of the needle at the same distance on both the
forward and backward strokes of the looper.
To adjust when the point of the looper passes
higher on the forward stroke, loosen the looper
driving crank set screw, Fig. 29. Loosen the looper
crank timing screw (left) approximately 1/8 turn, and
tighten the looper crank timing screw (right).
Continue to adjust until the correct adjustment is
made. Then securely tighten the set screw.
When the point of the looper passes higher
on the backward stroke, reverse the adjustment by
loosening the timing screw (right) and tightening the
timing screw (left).
Setting the Needle Guards
When the needle guards are properly set,
they should pass as close as possible to the needles
without touching. To adjust the guard turn the
machine pulley over toward the operator until the
points of the loopers are about to pass the needles
on their forward strokes. At this point, the looper
timing mark LT on the machine pulley should be
approximately 1/8” above the arrow on the machine
arm. Loosen the needle guard set screws, Fig. 30.
Turn the needle guards as close to the needles as
possible without touching. Tighten the set screws.
Check by springing the needles to the left and
turning the machine pulley to make certain that the
looper points do not stroke the needles.