Position of the hook and needle
Service Instructions 667 - 00.0 - 04/2016 51
10.3 Setting the needle bar height
Order
First, check the following settings:
• Loop stroke position ( p. 49)
• A straight and undamaged needle must be inserted
( Operating Instructions, chapter Inserting and replacing the needle)
Proper setting
Machine locked in place at position 1 and upper stitch length adjusting
wheel set to 0.
The hook tip is level with the lower third of the groove on the needle.
Disturbances caused by an incorrect needle bar height
• Damage to the hook tip
• Jamming of the needle thread
• Missing stitches
• Thread breaking
• Needle breakage
Cover
• Head cover ( p. 12)
Fig. 33: Setting the needle bar height
To set the needle bar height:
1. Lock the machine in place at position 1 ( p. 16).
2. Position the upper stitch length adjusting wheel to 0.
WARNING
Risk of injury from sharp and moving parts!
Crushing and puncture possible.
Switch off the machine before you check and set
the needle bar height.
(1) - Needle bar
(2) - Screw
(3) - Needle groove
(4) - Hook tip
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