Adjustment for spreader trimmer, 1 the explanation for trimming operation, 2 maintenance and adjustment – SINGER UT-1 User Manual
Page 12: 2 maintenance and adjustment 0
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4. ADJUSTMENT FOR SPREADER TRIMMER
4-1 THE EXPLANATION FOR TRIMMING OPERATION.
WHEN NEEDLE MOVED TO ITS UPPERMOST
DEAD POINT, MOVABLE KNIFE (A) PASSING
THROUGH THE NEEDLES AND THE LOOP
OF SPREADER THREAD (CAN NOT
INTERFERENCE WITH EACH OTHER.),
WHEN THE TIP OF MOVABLE KNIFE
MOVED TO THE HALF DISTANCE
BETWEEN SPREADER AND PRESSER
fOOT AND START RETREATING BY THIS
MOMENT THE HOOK BLADE OF MOVABLE
KNIFE IS PULLING THE ORNAMENTAL
THREAD BACK TILL THE FIXED KNIFE CUT
THE ORNAMENTAL THREAD AND THE
THREAD CLMAP SPRING IS HOLDING THE
ORNAMENTAL THREAD END.
4-2 MAINTENANCE AND ADJUSTMENT
WHEN MOVABLE KNIFE PASSING THOUGH
THE NEEDLES AND SPREADER, THE
INTERVAL BETWEEN MOVABLE KNIFE
AND SPREADER SHOULD BE 0.1-0.3 m.m.
LOOSEN THE SET SCREW AND ADJUST
THE SPREADER TRIMMER SET TO ITS
PROPER POSITION AND THEN TIGHTEN
THE SET SCREW.
WHEN MOVEABLE KNIFE MOVE FORWARD
AND MEET WITH SPREADER, THE TIP OP
HOOK BLADE SHOULD SQUARE MATCH TO
THE THREAD HOOK OF SPREADER
LOOSEN THE SET SCREW, ADJUST THE
HOOK BLADE OF MOVABLE KNIFE TO ITS
PROPER POSITION AND LINE UP WITH
THREAD HOOK OF SPREADER THEN
TIGHTEN. THE. SET SCREW.
WHEN MOVABLE KNIFE MOVE FORWARD
TO ITS LOWEST DEAD POINT. THE TIP OF
THE MOVABLE KNIFE SHOULD LOCATE
AT THE HALF DISTANCE BETWEEN
SPREADER AND PRESSER -FOOT. LOOSEN
THE NUT OF CYLINDER ADJUST THE
PISTON TO ITS PROPER POSITION THEN
TIGHTEN THE NUT.