KANSAI SPECIAL DFB Series, Инструкция, Страница: 25 / 37

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7 - 2 T i m i n g o f t h e r e t a i n e r l o o p e r t o t h e n e e d l e
When the needle, moving from the top to bottom of its stroke, enters the triangle of the
looper thread, the retainer looper should be at the extreme
right end of its travel. To adjust the retainer looper left to
right, loosen screws A first. With the retainer looper at
the extreme left end of its travel, set the clearance
between the retainer looper and the right side of the
looper at approximately 0.5mm. Then set the clearence
between the retainer
looper and the top
surface of the looper
blade at 0.1mm.
After this
adjustment is made,
tighten screws A.
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8
】
ADJUSTING THE NEEDLE GUARD
8 - 1 P o s i t i o n o f t h e n e e d l e g u a r d
When the needle is closest to the needle guard, there
should be a clearance 0~0.1mm between the right side of
the needle and needle guard A.
Adjustment is made by loosening screw B.
【
9
】
ADJUSTING THE FEED DOG & STITCH LENGTH
9 - 1 F e e d d o g h e i g h t & t i l t
When the needle bar is at the top of its stroke, the feed
dog teeth should be 1~1.2mm above the top surface of the
needle plate. Adjustment is made by loosening screw A.
Then check to see if the feed dog teeth is parallel with the
top surface of the needle plate. Adjustment is made with
screws B and C.
< Note >
To adjust the standard type of needle guard, after positioning the
looper holder bracket (see 6-1) adjust the looper by loosening the
looper set screw. Then tighten screw B.
< Note >
When adjusting the height of the feed dog, tilt the looper holder
toward the front of the machine.