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Machine head
Cover
• Swiveling up the machine head ( 3.3.1 Access to the machine bottom
Fig. 25: Setting the lifting gap
(1) - Setscrew
(2) - Screw
Setting steps
1. Loosen the screw (2).
2. Push the cover (3) downwards.
3. Loosen the setscrew (1).
4. Set the bobbin housing lifter (4) such that the gap between the nose of
5. Tighten the setscrew (1).
6. Push the cover (3) upwards.
7. Tighten the screw (2).
4.5.2 Setting the timing for opening
Proper setting
The bobbin housing lifter starts to open exactly at that point when the hook
tip is located below the bobbin housing lifter after the loop is taken up.
Cover
• Swiveling up the machine head ( 3.3.1 Access to the machine bottom
Service Instructions 911-211 - 00.0 - 02/2015
section, p. 10)
①
②
③
the bobbin housing and the middle section holder is just big enough to
allow the needle thread to slip through without a problem.
While doing so, ensure that the gap is not so big that the middle part of
the hook swings to and fro, hitting the middle section holder.
WARNING
Risk of injury!
Crushing injuries from moving parts.
Switch off the machine before checking and setting
the point in time of opening.
section, p. 10)
(3) - Cover
(4) - Bobbin housing lifter
④
29
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