Brother CE-8080PRW, Service Manual

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Adjustment
Adjustment
Feed forward/backward
[Adjustment standard]
In the test mode “05”, sewing 100 forward stitches, and 100 reverse stitches without thread, the forward feed length
must be 0 to 10mm longer than the backward feed length.
[Adjustment procedure]
1. Start the test mode.
2. Select the pattern number “05” (Forward and reverse feed mode).
3. Insert a paper between folded broadcloth.
4. Lower the presser lever.
5. Press (Start/Stop button), then 100 forward stitches and 100 reverse stitches starts without thread.
In case of models not equipped with (Start/stop button), press down the foot controller, then 100 forward
stitches and 100 reverse stitches starts without thread.
6. Check the forward and backward feed length.
7. Remove the base cover.
8. Loosen the fixing screw (screw 3 x 8) of the FPM holder assy. with the hex wrench (2.5mm).
9. Turn the screw (bolt socket M4 x 25) of the FPM holder assy. with the hex wrench (3mm), to adjust that the
forward feed length is 0 to 10mm longer than the backward feed length.
*Key point
• Tighten the screw (bolt socket M4 x 25). (turn to the left)
⇒
Backward feed shorter
• Loosen the screw (bolt socket M4 x 25). (turn to the right)
⇒
Backward feed longer
10. Apply a small amount thread locker to the screw (bolt socket M4 x 25).
11. Tighten the fixing screw (screw 3 x 8) of the FPM holder assy..
Screw 3 x 8
Bolt socket
M4 x 25
Hex wrench
(3mm)
0 - 10mm
Forward feed Backward feed
Screw 3 x 8