Adjusting The Stop Position Of The Needle; Adjusting The Thread Trimmer - JUKI LZ-2290A-SR/IP-110D/SC-916 Instruction Manual

8-10. adjusting the stop position of the needle

A

8-11. adjusting the thread trimmer

WarNING :
to protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
q
w
132
B
C
D
B
A
q
q
w
(1) stop position of the needle after thread trimming
1) The needle stops at the standard stop position
when marker dot A engraved on the handwheel
c o v e r i s a l i g n e d w i t h w h i t e m a r k e r d o t B
engraved on the handwheel.
2) Stop the needle at the highest position of its stroke,
loosen screw 1 , and adjust the stop position of the
needle by moving screw 1 within the slot.
1 Move the screw in the direction C to advance
the timing to make the needle stop.
2 Move the screw in the direction D to retard the
q
timing to make the needle stop.
Do not operate the sewing machine
with screw 1 loosened.
loosen the screw only, and do not
removed it.
(2) the lowest stop position of the needle
When you return the pedal to its neutral position
after having depressed the front part of it, the needle
stops at the lowest stop position. As in the case of
the adjustment of the highest stop position of the
needle, stop the needle 1 in the lowest position of
its stroke, loosen the screw 2 , and adjust the lowest
stop position of the needle by moving the screw 2
w
within the slot. Move the screw in the direction A to
advance the timing to make the needle stop or in the
direction B to retard it.
Do not adjust screw 2 .
It has been factory-adjusted at the
time of delivery and needle sway will
be caused if it is adjusted.
( 1) Initial position of the moving knife
When the moving knife is in its initial position, the
moving knife pin 1 should be aligned with the engraved
marker dot 2 as shown in the figure on the left.
1. When the gauge size which is more
than that delivered as standard or
the gauge size of other manufactures
is used, and the counter knife
interferes with the feed dog, loosen
nut 3 , move the initial position
of moving knife pin 1 to the left
from engraved maker dot 2 by
approximately one half of engraved
marker dot 2 and fix the pin.
2. Guarantee of the sharpness of the
thread trimmer knife unit is #80
to #50. When using thick threads
thicker than these Nos., replace the
knife with thread trimmer knife unit
for thick thread (Part No. : 22556054).