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3-19 Optionals (Presser foot micro-lifter)
When straight stitching is not performed since slip-off of fabrics occurs dut to the pressure of presser foot in case
of fluffy masterials such as velevet or the like, or hard-to-sew materials, if presser foot micro-lifter (2311056) is
used, the presser foot can be minutely lifted at the face plate section with ease, and sewing can be performed. As
a result, handling and finish of fabrics are improved.
(Assembling the presser foot micro-lifter)
1) Remove the setscrew in the hand lifter, and remove the plastic
hand lifter.
2) Remove the face plate, insert micro-lifter hand lifter (1) into hand
lifter cam shaft (2) while pressing hand lifter cam shaft (2) with
fingers so that it does not move in the direction of inside of the
machine arm, and securely tighten it with setscrew (3).
3) Temporarily tighten two setscrews under the face plate, insert
collar (4) supplied with the machine into the upper setscrew
section, insert guide hole A of installing base (5) into the top
end of hand lifter cam shaft, and securely tighten the micro-lifter
with setscrew (6) through washer (7) while checking that micro-
lifter hand lifter (1) lightly moves.
(Adjustment)
1) Loosen micro-lifter nut (8), turn micro-lifter hand lifter knob (9) to
this side, and the presser foot gradually goes up.
2) Tighten nut (8) to fix the micro-lifter at the position where the
optimum condition of the sewing materials is obtained after trial
sewing.
3-20 AE-8 (Bobbin thread remaining amount detector)
When the amount of remaining bobbin thread reaches the set value, buzzer will sound to warn the operator not to
perform the next operation of depressing the front part of the pedal.
It is especially effective for the splicing and the process where resewing is not possible.
For installation, optional printed circuit board A (M97014610A0) which is separately available is required.
For the details, refer to the Instruction Manual attached at the time of purcahse of the device.
(Caution) This device cannot be used with DS and DF types. When it is compelled, use this device with
existing RP hook 11079456 and at sewing speed of 3,000 rpm or less.
3-21 ED-4 (Compact material end sensor)
When the sensor detects a material end, the sewing machine automatically stops and thread trimming is
performed.This enhances productivity by allowing the operator to conduct sewing work without running to look
out for missing stitches.
For installation, optional printed circuit board A (M9701460A0) which is separately available is required.
Refer to the Instruction Manual attached at the time of purchase of the device.
3-22 PK-70 and -71 (3-step pedal)
Refer to the Instruction Manual attached at the time of purchase of the device.
(1)
(5)
(A)
(3)
(6)
(7)
(8)
(9)
A
(2)
