Adler 744-122 Operating Instruction

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Preface and General Safety Notes

Part 1: Operating Instructions Cl. 744-122

1. Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Summary and Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Replacing the Material Guide Rail by Primary Seams . . . . . . . . . . . . . . . . . . . . . 5

2.2 Attaching the Material Stopper by Primary Seams . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Setting the Seam Interval by Primary Seams . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Needles-Yarn-Thread Tensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.5 Inserting the Material and Starting the Sewing Unit . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Thread Monitor for Needle and Bobbin Thread . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.7 Build-on Stacker by Primary Seams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1. Pr oduct Description

1.1_ Summary and Intended Use

The 744-122 s ewing unit is for sewing
pre-determined, straight or curved seams. A rail
appropriate to the seam c o nf iguration holds a nd
guides the ma te rial.
The material transport is conducted by a step
motor. The sewing unit has electro-pneumatic
controls.

The Microcontrol control units have the integrated
"Multitest" testing and monitoring system. Along
with monitor ing t he s ewing pr o ces s t his al lows a
quick checking of the input and output elements.
Possible operating errors and malfunctions are
shown in the dis p lay.

Depending on t he pr o gram, the control of th e
sewing unit can oc c u r v ia ph ot oc e ll or d istance
measurement.

Along with con ti nuo us seams from seam be gi nn in g
to seam end the following additional functions can
be selected wi th th e c o nt r ol unit:

– Slit at the be gi nn in g o f t he ma te rial
– Slit at the end of the material
– Slit at the be gi nn in g a nd at th e e nd of the

material
– Seam interruption or pa rtial st it c h c o nd en s in g
– Seam interruption with slit at the beginning and

at the end of the material
– Security at th e s e am en d t hr o ug h c h ai n

stitching or stitch condensing

The selector switc h on th e b ack of th e c o nt rol un it
front panel mu st h ave a set ti ng ap pr o pr i at e to the
work procedures.
The setting normally occurs at the factory.

Which selector switch setting should be chosen for
which work procedure can be found in the
Microcontrol c on tro ls s u mm ary in the annex to
these instructions.

Please direct fu rther en qu ir i es c o nc e rning work
procedures/a pp li c at io ns t o

or its offices.

Through equipment with the appropriate parts sets,
the sewing unit can be used for the following work
procedures:

1. Primary seams: Work procedure A,

e.g. rear sleeve seam, mid-back seam, fro nt

sleeve seam, side piece sea m- overco at , f r on t

sleeve seam with outer ma te rial-lining in one

step etc.

2. Sewing wais t ba nd s on tro us e r s: work

procedure D

3. Sewing waistbands on skirts: Work procedure E

3