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5-6. Adjusting the stitch length
1) Turn the sttch length dal
1
n the drecton of the
arrow so that the number correspondng to the
desred sttch length meets the marker dot
A
en-
graved on the machne arm.
2) Numbers on the sttch length dal are calbrated n mm.
3) To perform reverse feed sttchng, press down the
feed lever
2
. The sewng machne performs re-
verse feed sttchng as long as you keep the feed
lever held pressed. The feed lever wll return to ts
home poston and the sewng machne wll run n
the normal sttchng drecton when you release
the feed lever.
5-7. Adjusting the condensation stitching
Sttch length can be reduced at the start or end of
sewng. Ths feature s used for fastenng sttch.
1) Turn condensaton sttchng adjustng dal
3
n
the drecton of the arrow mark, and adjust the de-
sred number to engraved dot
B
on the machne
arm.
2) The number of the graduaton s shown n the unt of mm.
3) Turn condensaton sttchng adjustng dal
3
n the
drecton of + to reduce the reverse feed sttch length.
Example : When sttch length dal
1
s used wth the
graduaton of +2, the maxmum adjustment value
of condensaton sttchng adjustng dal
3
be-
comes -2. (It s possble to adjust wthn the range
of -2 to +2.)
Maximum feed amount is regulated to ±2 according to the gauge delivered (feed dog :
22581508). Adjustment can be performed up to the range of m5 to -4 by replacing the
gauge (feed dog : 22540009).
4) Note that the graduatons on the dal are mere reference. Adjust the condensaton sttchng whle actu-
ally observing the finished seam.
1
2
4
3
5
A
2
1
3
B
WArNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
5-5. threading the machine head
1) Turn the handwheel by hand to brng the needle to the most rased poston.
2) Pass the thread n the order of the numbers as llustrated.
3) Pull out the thread about 10 cm from the needle after passng t through the needle.
With auxiliary
thread take-up
turn the thread
once.
Without auxiliary
thread take-up
LZ-2290A-7
With thread
trimmer
LZ-2290A
Without thread
trimmer
1