DURKOPP ADLER 669 CLASSIC, Operating Instructions Manual

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Machine description
Operating Instructions 669 - 00.0 - 08/2019 17
3.2 Proper use
The machine may only be used with sewing material that satisfies
the requirements of the specific application at hand.
The machine is intended only for use with dry sewing material.
The sewing material must not contain any hard objects.
The needle thicknesses permissible for the machine are listed in
the
Technical data ( 
p. 43
) chapter.
The seam must be completed with a thread that satisfies the
requirements of the specific application at hand.
The machine is intended for industrial use.
WARNING
Risk of injury from live, moving and cutting
parts as well as from sharp parts!
Improper use can result in electric shock, crushing,
cutting and punctures.
Follow all instructions provided.
NOTICE
Non-observance will lead to property damage!
Improper use can result in material damage at the machine.
Follow all instructions provided.