Setting the hook and the needle bar
40 Service Instructions 878-M PREMIUM - 03.0 - 10/2019
4. Insert the 3 mm key (2) into the adjusting screw (1) and turn it to make
the needle guard (3) push the needle (4) away far enough so that any
contact with the hook tip (5) is eliminated:
• Stronger pressure when pushing away: turn counterclockwise
• Weaker pressure when pushing away: turn clockwise
10.6 Setting the loop former
Proper setting
The loop former (1) in 1-needle machines should be adjusted so that the
gap (A) = 0.1 to 0.2 mm.
1. Set the maximum stitch length based on the sewing equipment used.
2. Disassemble the throat plate ( p. 18).
Fig. 28: Setting the loop former
3. Bend the loop former as specified in the correct setting.
(1) - Loop former
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