Threading Twin-Needle Machines - DURKOPP ADLER 171 Operating Manual

Operation
Operating manual 171/173 Version 01.0 - 01/2016
5.5

Threading twin-needle machines

WARNING
Risk of injury from the needle point
and moving parts.
Switch off the sewing machine before threading.
Twin-needle machines have a second tensioning wheel and
a second thread guide on the machine arm, to accommodate
both the needle thread and the looper thread.
Fig. 12: Threading twin-needle machines
①
②
(1) - 2nd Needle thread guide
(2) - 2nd Needle thread tensioner
The thread puller and the other thread guides on all machines
have two holes so that two threads can also be threaded.
The threading procedure corresponds to that for the single-needle
machines:
•  5.3 Threading the needle thread, pg. 21
•  5.4 Threading the looper thread, pg. 24
Important: Take care when threading the machine that
the threads do not cross over one another.
③
④
(3) - 2nd Looper thread guide
(4) - 2nd Looper thread tensioner
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