Position of the hook and needle
Service Instructions 867 - 04.0 - 10/2019 53
10.4 Adjusting the needle bar height
Order
First, check the following settings:
• Looping stroke position ( p. 50)
Proper setting
Machine is locked in place at position 1 ( p. 22).
The hook tip is level with the lower third of the groove on the needle.
Disturbance
Disturbances caused by an incorrect needle bar height
• Damage to the hook tip
• Jamming of the needle thread
• Skip stitches
• Thread breaking
• Needle breakage
Fig. 36: Adjusting the needle bar height
To adjust the needle bar height:
1. Disassemble the head cover ( p. 16).
2. Loosen the screw (2) of the needle bar (1).
3. Move the height of the needle bar (1) such that the hook tip (4) is in
the middle of the lower third of the groove for the needle.
When doing so, take care not to twist the needle to the side.
The groove (3) must face toward the hook.
4. Tighten the screw (2) for the needle bar (1).
Order
Then, check the following settings:
• Position of the needle guard ( p. 52)
(1) - Needle bar
(2) - Screw
(3) - Needle groove
(4) - Hook tip
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