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Operation
Operating Instructions 550-12-33/34 - 00.0 - 08/2017
To change the needle:
1.
Turn handwheel until the needle (4) is at the top dead center.
2.
Loosen the threaded pin (3) through the hole in the thread
guide (2).
This requires that the thread guide (2) be assembled
completely straight to the needle bar (1).
3.
Pull the needle (4) down and out.
4.
Insert the new needle (4) into the hole in the needle bar (1)
until it reaches the end stop.
Important
Align the needle (4) in such a way that the groove (5) is pointing
to the rear.
5.
Tighten the threaded pin (3) through the hole in the thread
guide (2).
Order
Always adjust the clearance between the hook and the needle (4)
after changing to a different needle thickness ( Service
Instructions).
Disturbance
An incorrect hook distance can cause the following disturbances:
• Changing to a thinner needle:
• Missing stitches
• Thread damage
• Changing to a thicker needle:
• Damage to the hook tip
• Damage to the needle
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