Brother BE-438C Instruction Manual page 43

10-7-1. Replacing the movable knife and fixed knife
2665Q
1. Open the large shuttle hook cover, remove the screws (1) and (2), and then remove the feed plate (3).
2. Remove the two screws (4) and the two screws (5), and then remove the needle plate (6).
3. Remove the thread trimmer connecting rod (7) from the connecting rod lever pin (8).
2944Q
4. Remove the movable knife (9) and replace it with a new one. At this time, check that the movable knife (9) and the fixed
knife (10) cut the thread cleanly. If necessary, adjust by using the appropriate movable knife washer (11) (supplied as
accessories).
* Apply grease to the outside of the collar (12) at this time.
5. Install the fixed knife (10) at a distance of 0.5 mm from the needle hole plate (13).
6. Place the thread trimming connecting rod (7) onto the connecting rod lever pin (8), and then install to the needle plate (6).
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BE-438C
10. STANDARD ADJUSTMENTS
2466Q
2945Q
37