Adjusting The Cloth Opening Amount - Brother RH-981A Instruction Manual

9. STANDARD ADJUSTMENTS

9-15. Adjusting the cloth opening amount

3096Q
1. Loosen the screw (1), and then insert a screwdriver into the notch in the side of the feed bracket and turn the
adjusting screw (2) to adjust the opening amount.
2. After tightening the screw (1), measure the opening amount.
Note: Adjust so that the opening amounts for the left and right work clamp plates are equal.
* It is usually sufficient for one work clamp plate to open by 0.8 mm.
Measuring the opening amount
3098Q
1. Switch the mode to test feed mode. (Refer to page 50.)
2. Lower the work clamp and then use calipers to measure the distance a.
3. Press the start switch. The feed bracket will move and then the left and right work clamp plates will open.
4. Use calipers to measure the distance b.
5. The difference between a and b is the opening amount. (Opening amount = a - b)
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RH-981A
3097Q
3099Q