DURKOPP ADLER 550-532, Instruction Manual

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Operation of the sewing automat
Instruction manual 550-532 - 00.0 - 07/2015 26
5.4 Setting the thread regulator
Fig. 4: Setting the thread regulator
The thread regulator (1) regulates the amount of needle thread
required for forming the stitch. An optimum sewing result is pos-
sible only when the thread regulator is exactly adjusted.
With the correct setting the needle thread loop must slide over the
thickest part of the hook at low tension.
1. Loosen the screw (3).
2. Adjust the position of the thread regulator (1).
Thread regulator to the left = larger amount of needle thread
Thread regulator to the right = smaller amount of needle thread
3. Tighten the screw (3).
CAUTION
Risk of injury from the point of the needle and
moving parts
Only thread the needle thread with the sewing
automat switched off.
(1) - Thread regulator
(2) - Thread tensioning spring (3) - Screw
①
③
②