Brother CE-8080PRW, Service Manual

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Adjustment
Adjustment
Front/back and left/right position of feed dog
[Adjustment standard]
The clearance (front/back) between the forward edge of the feed dog middle tooth and the feed dog hole of the needle
plate A must be 3.2 to 3.8mm, and the both clearance (left/right) between the feed dog and the feed dog hole must be
equal.
[Adjustment procedure]
1. Remove the needle plate B, the presser foot and the needle.
2. Start the test mode.
3. Select the pattern number “07” (Feed dog position mode).
4. Remove the 2 screws (screw needle plate) of the needle plate A, then remove the needle plate A.
5. Turn the pulley by hand to set the feed length to 0 mm. (Check that the mark on the feed adjusting gear alignes
with the mark on the F pulse motor gear.)
6. Loosen the 2 screws (screw bind M3 x 6) of the feed dog, temporarily attach the needle plate A, to adjust the
front/back and left/right position of the feed dog.
*Key point
• Adjust the clearance (front/back) between the forward edge of the feed dog middle tooth and the feed dog
hole of the needle plate A to 3.2 to 3.8mm.
• Adjust the both clearance (left/right) between the feed dog and the feed dog hole is equal. (a=b)
• Assemble the feed dog parallel with the feed dog hole.
7. Secure the feed dog with the 2 screws (screw bind M3 x 6).
8. Fully tighten the 2 screws (screw needle plate) of the needle plate A.
Parallel
3.2 - 3.8mm
Screw
bind M3 x 6
Screw
bind M3 x 6