JUKI DDL-9000A, Engineer'S Manual

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3) Adjustment of the micro-lifter
According to the material to be sewn, the presser can be lifted in the
middle of sewing.
1. Lower the presser hardware to assume the condition where the feed
dog is lower than the throat plate.
2. In the state that the nut is loosened, slowly tighten the micro-lifter
screw so that fine adjustment can be conducted in regard to the
height of the presser hardware until proper status is secured for the
material being sewn.
3. Fix the nut .
Standard height of the micro-lifter screw : 9mm
4) Adjustment of the micro-lifter unit (available separately)
Standard DDL-9000A is equipped with a micro-lifter unit. If frequent
adjustments are anticipated, however, it is recommended to use
the micro-lifter unit that is available separately.
Micro-lifter unit (available separately) : Part No. 40056622
[Method of mounting]
1. Remove the setscrew of the presser lifter lever and take out the
presser lifter lever made of resin material.
2. Remove the face plate and hold the presser lifter cam with the fingers
in order not to let it move toward inside of the arm. Get the presser
lifter lever around the presser lifter cam shaft and fix it with the
setscrew of the presser lifter lever .
3. Temporarily fasten the two screws of the face plate and get the upper
setscrew section around the accessory stopper collar . Confirming
that the presser lifter lever moves lightly, fix the stopper base
with the accessory setscrew .
[Method of adjustment]
1. Loosen the stopper screw nut and turn the stopper .
When it is turned toward you, the presser hardware rises.
2. Make fine adjustments of the presser hardware height until it
becomes suitable for the material being handled.
3. Fix the stopper screw nut .
o When handling fluffy materials
such as elastic materials or vel-
vets, material shifting and damage
can be relieved.
o No tools are required.
Fine adjustments can be carried
out in a sitting posture.
Adjustment Procedure Results of Improper Adjustment