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Operation
Fig. 24: Thread tension
(1) -
(2) -
(3) -
4.2.1 Adjusting the needle thread tension
Adjusting the needle thread tension electronically (ETT)
Only users with security level 2 can adjust the needle thread tension
electronically or in the Setup menu ( p. 82).
It is not possible to adjust the needle thread tension manually.
Information
To avoid having to set the needle thread tension anew for every seam
record set, you can create so-called teach-in files and link these files to
the seam record sets ( p. 94).
Important
The thread tension sensor must be re-calibrated once a year. For this pur-
pose, turn to Dürkopp Adler's service department before the year runs out
(www.duerkopp-adler.com).
4.2.2 Adjusting the hook thread tension
Operating Instructions 550-D800 - 01.0 - 05/2023
①
②
②
Identical needle thread and hook thread tension
Hook thread tension higher than needle thread tension
Needle thread tension higher than hook thread tension
WARNING
Risk of injury from needle tip and moving parts!
Puncture, cutting and crushing possible.
Switch off the machine before adjusting the hook
thread tension.
DA150018_V52_XX
37
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