Atlanta Attachment Company 1345-4B, Техническое руководство и перечень запасных частей

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Technical Manual & Parts Lists
27
Positioning Spreader
Fig 31
Sidewise and Height Setting
When the looper on its forward stroke is passing the spreader
a) The point of the spreader should be exactly opposite the top of the thread groove at the left side of the
looper.
b) The clearance between the spreader point and the looper should be approximately the double
thickness of ordinary paper.
To adjust, loosen the two spreader holder set screw, Fig. 31. Move the spreader and holder to the
correct position. Hold in position and tighten the set screws.
Lengthwise Setting
When the point of the needle on its downward stroke is even with the point of the spreader, the
clearance between the two points should be approximately 1/16”. To adjust, loosen the spreader screw,
Fig. 32, and move the spreader forward or backward to correct position. Then tighten the spreader
screw.
Fig 33
Changing Movement of Spreader
The sidewise movement of the spreader may
be adjusted for sewing under abnormal conditions.
Under normal conditions, maximum spreader
movement is generally used. To adjust, tilt the
machine back on its hinges, loosen the two spreader
driving eccentric screws, Fig. 33, and the two spreader
driving eccentric flange screws. Move eccentric to the
left to increase movement, or to the right to decrease
movement. When correctly positioned, tighten the two
spreader driving eccentric screws first, hold flange
against strap and tighten flange screws. Then refer to
preceding information regarding positioning of
spreader.
Fig 32