2 Designated Use
The class 911 is a sewing unit that is designated for the sewing of
light to medium-heavy material. Such material is generally made of
textile fibers, composite materials but it may also consist of leather.
Suchlike material is used in the clothing industry and for domestic and
motor-vehicle upholstery.
This sewing unit can also be used to produce so-called technical
seams. In this case however, the operator must assess the possible
dangers which may arise (DÜRKOPP ADLER AG will be happy to offer
its assistance), since such applications are relatively rare and at the
same time can be so varied that no single set of criteria can cover
them all. The outcome of this assessment may require appropriate
safety measures to be taken.
Generally only dry material may be sewn with this sewing unit. The
material may be no thicker than 4 mm w hen compressed by the
lowered workclamp. The material may not contain any hard objects.
The seam is generally produced with textile-fibre sewing thread
(cotton threads, synthetic yarns of covering yarns) with the following
dimensions:
Class 911 thread thickness 15/3 - 120/3
Before using any other thread the possible dangers arising have to be
assessed and appropriate safety measures if necessary taken.
This sewing unit may be set up and operated only in dry,
well-maintained premises. If the sewing unit is used in
premises which are not dry and well-maintained it may be
necessary to take further precautions which should be agreed in
advance (see EN 60204-31:1999).
As manufacturers of industrial sewing machines we proceed on the
assumption that personnel who work on our products will have
received training at least sufficient to acquaint them with all normal
operations and with any hazards which these may involve.
3 Subclasses
Cl. 911-210 CNC-controlled s ewing unit based on the class 867 with large sewing
area (sewing field size 300 x 200 mm) and a DAC III control unit with
special software.
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