Adjusting The Thread System; Setting The Thread Tensioning Spring - DURKOPP ADLER 967 Instruction Manual

Adjusting the thread system

13 Adjusting the thread system

13.1 Setting the thread tensioning spring

The thread tensioning spring (2) tensions the needle thread before the
needle penetrates into the material, so that the thread cannot slip under
the needle and be pierced by it.
If the overall thickness of the material is very thin or very thick, the setting
of the spring travel must be adjusted accordingly.
Thin material: normal spring travel (basic position: horizontal)
Thick material: long spring travel (basic position: vertically downwards)
Standard setting
• The home position of the thread tensioning spring (2) is horizontal.
• When at its home position, the spring is turned by 90°.
Fig. 48: Setting the thread tensioning spring
①
②
(1) - Screw
(2) - Thread tensioning spring
Setting steps
1. Loosen the screw (1).
2. Turn the body (3).
3. Turn the sleeve (4) counterclockwise.
4. Restrain sleeve (4) and body (3) against turning, and tighten the screw (1).
Service Instructions 967 - 02.0 - 12/2015
WARNING
Risk of injury!
Crushing injuries from moving parts.
Switch the machine off before checking and
adjusting the thread system on the machine.
(3) - Body
(4) - Sleeve
④
③
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