Instruction manual

Table Of Contents
KE-430B, 431B, 432B, 433B
34
q
q
e
w
r
q
B
A
10-6.Adjusting the thread take-up amount
10-7.Adjusting the movable knife
10. STANDARD ADJUSTMENTS
e
w
Thread take-up amount (stroke)
Become
less
Become
greater
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.
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.
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.
spec.
Thread take-
up amount
KE-431B KE-432B KE-433B
-2,-3 -2,-7
0mm
-2,-7
0mm
-1
KE-430B
-1,-5
0mm 5mm 5mm5mm
0141Q
0117Q
0143Q0142Q