Position of the hook and needle
50 Service Instructions 867-M PREMIUM - 03.0 - 05/2017
10.3 Setting the needle guard
The needle guard prevents contact between needle and hook tip.
Order
First, check the following settings:
• Loop stroke position ( p. 48)
• Hook side clearance ( p. 46)
• Needle bar height ( p. 51)
• A straight and undamaged needle has been inserted ( Operating
Instructions)
Proper setting
Machine is locked in place at position 1 ( p. 16).
The needle guard pushes the needle away just enough so that it cannot
be touched by the hook tip.
To set the needle guard:
1. Execute the service routine Needle Hook > Timing
( p. 14).
The software is used to define the necessary presettings on the
machine.
2. Disassemble the throat plate ( p. 21).
3. Disassemble the feed dog ( p. 22).
Fig. 37: Setting the needle guard
4. Turn the handwheel and check how far the needle guard (2) pushes
the needle away.
5. Turn the screw (1) such that the needle guard (2) just pushes the
needle (3) far away enough so that it cannot be touched by the hook tip:
• Pushing away more strongly: turn counterclockwise
• Pushing away less strongly: turn clockwise
6. Finish the service routine.
(1) - Screw
(2) - Needle guard
(3) - Needle
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