Adjusting The Cloth Opening Amount - Brother DH4-B981 Instruction Manual

9-14. Adjusting the cloth opening amount

0976Q
1. Loosen the screw q, and then insert a screwdriver into the notch in the side of the feed bracket and turn the
adjusting screw w to adjust the opening amount.
1.
2. After tightening the screw q, measure the opening amount.
2. NOTE: Adjust so that the opening amounts for the left and right work clamp plates are equal.
2. Note: * It is usually sufficient for one work clamp plate to open by 0.8 mm.
9-14-1. Measuring the opening amount
0978Q
1. Switch the mode to feed mode. (Refer to page 37.)
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)
q
w
b
q
w
DH4-B981
9. STANDARD ADJUSTMENTS
q
w
a
q
w
0977Q
0979Q
61