Released 06/2010
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DECO 2000
1-39
8. A D J U S T M E N T A N D T I M I N G O F M A T E R I A L F E E D
1) Position the timing of material feed
1.1.
Bring the eye of the needle flush with the throat plate.
1.2.
Loosen the throat plate holder, by two screws, holding the throat plates.
1.3.
Position the throat plate for 0,08 a• 0,13 mm clearance of the forward end of the slot from needle
eye. Make sure that the feed dog and the bender plate are free to operate. Tighten the throat plate
holder making sure that it is square with the back casting.
2) Adjust feed dog angle
2.1.
Perform this adjustment and the adjustment feed dog height at the same time.
2.2.
Bring the feed dog above the throat plate.
2.3.
Loosen two screws on the material feed arm to adjust the feed dog.
2.4.
Adjust the upper surface of the feed dog parallel with the throat plate. Tighten the screws.
3) Adjust feed dog height
3.1.
Bring the feed dog above the throat plate .
3.2.
Use the lifter rod to raise or lower the feed dog. Loosen the upper jam nut.
Loosen the lower jam nut ( left hand thread ).
3.3.
Adjust the feed dog for 0,4 a• 0,8 mm. above the throat plate.
Tighten the jam nuts.
4) Adjust feed dog timing
4.1.
Bring the needle bar at 0,4 a• 0,8 mm. before the needle reaches the dwell position.
4.2.
Loosen the material feed cam and rotate to just bring the feed dog all the way up. Tighten the feed
cam.
E - STANDARD MACHINE ADJUSTMENT