Adjusting The Thread Take-Up Amount; Adjusting The Movable Knife - Brother KE-430B Instruction Manual

10. STANDARD ADJUSTMENTS

10-6.Adjusting the thread take-up amount

At the time of shipment from the factory, the thread take-up amount (stroke) of the thread take-up lever q is
adjusted as shown in the table below. You may need to adjust this setting depending on the sewing conditions
to prevent the thread from pulling out at the sewing start.
Thread take-up amount (stroke)
q
0141Q
Loosen the screw w and move the stopper (3.57 nut) e to adjust the operating angle of the thread take-up
solenoid r.
* To reduce the thread take-up amount, move the stopper e upward.
* To increase the thread take-up amount, move the stopper e downward.
NOTE:
Do not increase the stroke of the thread take-up lever any more than is necessary.
If the sub-thread tension is too high, the needle thread length may become too short and the thread may come out of
the needle. Furthermore, if the sub-thread tension is too weak, the needle thread length may become too long and the
underside of the article being sewn may become untidy.

10-7.Adjusting the movable knife

q
B
0142Q
Loosen the nut w and move the connecting rod lever e to the left or right to adjust so that the V section A is
aligned with the index mark B on the needle plate when the sewing machine in the stopped position and the
movable knife q is pushed to the machine pulley side so that there is no play.
34
q
KE-430B
spec.
-1,-5 -2,-7
Thread take-
5mm 0mm
up amount
A
KE-430B, 431B, 432B, 433B
e
Become
less
Become
greater
w
KE-431B KE-432B
-2,-3 –
0mm 5mm
r
KE-433B
-1 -2,-7
5mm 0mm
w
e
0117Q
0143Q