10-12.Adjusting The Needle Up Stop Position; 10-13.Adjusting The Thread Wiper - Brother LK3-B432E MKII Instruction Manual

10 . STANDARD ADJUSTMENTS
10-12. Adjusting the needle up stop position
e
r
w
10-13. Adjusting the thread wiper
2 0.5mm
1. Loosen the set screw w and move the wiper arm support e up or down to adjust so that the clearance
between the top of the thread wiper and the needle point q is 2
with the center of the needle.
* Before carrying out this adjustment, check that the needle bar is lowered 5 to 5.5 mm from the needle up
stop position when the sewing machine stops.
2. Loosen the screw r and move the thread guide connecting plate t up or down so that the thread wiper
is approximately 20 mm from the needle when it is at the standby position.
39
q
t
y u
q
LK3-B430E-, B431E-, B432E-, B433E- Mark II
The needle up stop position is adjusted so that the
index mark w on the machine pulley q is inside the
mark r on the belt cover e.
If adjustment is necessary, loosen the screw t at the
"U" mark of the machine pulley q and adjust the po-
sition of the machine pulley q. The machine pulley q
stops later if it is turned clockwise, and it stops earlier
if it is turned counterclockwise.
NOTE:
The screw y at the "D" mark is an adjusting screw for the
needle down detection function and is adjusted to match
the feed timing, so it should not be loosened.
The screw u is a screw for detecting the machine stop
position, and should not be loosened.
* If the index mark w is not inside the mark r when
the sewing machine is started, error code "E-50" will
be displayed. Turn the machine pulley to move the
index mark w to the correct position and then start
the sewing machine.
w
e
Approx.
20mm
0.5 mm when the thread wiper is aligned
r
t