JUKI DDL-5550-6 Instruction Manual page 10

28. AUTO-LTFTER (AK-3O OR AK-311 (AVATLABLE ON SPECTAL ORDERI
* The AK-30 or AK-31 is designed to automatically raise the presser foot for 60 seconds after completion of thread trimming.
The AK-30 or AK-31 uses an exclusive motor.
1. How to use the AK-30
1) When it is necessary to raise
sewing, stop sewing and depress
2) The moment you release the
foot comes down.
2. How to use the AK-31
1) Refer to "10. PEDAL OPERATION"
3. Adjusting the Auto-lifter stroke
1) Ioosen locknut O .
2) Loosen locknut @ of stopper (A) O , and fully lower
the stopper (A).
3) Actuate the solenoid under the condition described in
step 2) above, and check if the presser foot is lifted
about l0 mm.
If the presser foot lift exceeds l0 mm, turn plunger @
counterclockwise to adiust the lift to 10 mm. If the
presser foot lift is less-than l0 mm, turntheplunger
clockwise to adjust the lift to 10 mm.
4) Actuate the solenoid to cause stopper (A) O to come
into contact with the oil reservoir.
5) Tum the knee switch OFF, then raise stopper (A) O
an additional turn.
6) Tightenlocknutofstopper(A) O andlocknut Q
7) Raise stopper (B) O until it comes into contact with
the oil reservoir, then provide a clearance of about I mm
between the indented part of lifter lever ()
and knee
lifter pushing rod O coming from the oil reservoir.
8) Tightenlocknut @ ofstopper(B) @
the presser foot while
knee switch O
knee switch. thepresser
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. Operation Precautions
1) When using the Auto-lifter, AK-30 or AK-31,
that No. t-(ff.ON) of DIP iwitch O mounted
PSC circuit board has been set to ON.
2) If you want to hold the presser foot in its upper position
after thread trimming for an unlimited time rather than
just 60 seconds, set both No. 1 (FLON) and No. 2
(FLPW) to ON.
By so doing, you can keep the presser foot in its upper
position for an unlimited time after thread trimming.
Flowever, if you leave your machine for an extended
time, remember to turn the power switch OFF.
be sure
on the
3 )
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