KANSAI SPECIAL NC Series, Parts List, Instructions

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7
NC-UT
series
6-4 Thread releaser plate
Install thread releaser bar D to thread releaser bar
connection plate F with screw G.
The top end of thread releaser bar D should protrude
39mm from the top surface of thread releaser bar
guide E. There should be a clearance of 4mm
between washer H and thread releaser bar guide E.
6-5 Thread releaser hook
The needle thread should not protrude long from the
underside of the fabric at the start of sewing.
Loosen screw I and adjust thread releaser hook J.
To decrease the amount of the thread supplied by the
thread take-up, raise the thread releaser hook.
To increase the amount, lower the thread releaser
hook. If the amount is too little, the stitches cannot
be formed at the start of sewing.
【 7 】 SAFETY DETECTOR
■ The safety detector is included so that the machine will
not start until the thread trimmer cuts the threads and
returns home safely.
Switch A of the detector must be pressed (ON) during
sewing (with the thread trimmer completely returned
home). Adjust by loosening screws B and E and
moving brackets C and D.
8
NC-UT
series
【 8 】 ADJUSTING THE SPEED CONTROLLER AND AIR PRESSURE (UTA,UTAB)
■ Speed controller F controls the speed when the thread
trimmer knife holder protrudes. Speed controller G
controls the speed when the thread trimmer knife holder
retracts. If screw F is too loosened, the holder will
protrude too fast and then the position of the movable knife
will be unstable, causing cutting error.
If screw G is too loosened, the holder will retract too fast
and then the looper thread may not be held properly (the
speed controllers are factory-set).
【 9 】 AIR WIPER ADJUSTMENT
9-1 NC-G UTA series
■ When the needle bar is at the top of its stroke, position air blowing outlet B 1~2mm below
the left needle’s eye. Loosen screw D and air wiper up or down required.
■ The position of air blowing outlet B should be 0.5~1.5mm from backside of the needles.
Loosen screw C and air wiper front or back required.
■ Adjusting amount of blowing air by adjust screw E.
< Note >
Set the regulator at 4~5kg/cm
2
. To in crease the pressure,
turn the adjusting knob clockwise. Too fast speed will give a
shock to the knife holder. Then the threads will be cut before
they are caught by the knife or the threads will not be held
properly. It may cause trouble.