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7 7 7 7 - - - - 2 Timing of the retainer looper to the needle
2 Timing of the retainer looper to the needle
2 Timing of the retainer looper to the needle
2 Timing of the retainer looper to the needle
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.
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.
【8】ADJUSTING THE NEEDLE GUARD
8 8 8 8 - - - - 1 Po
1 Po
1 Position of the needle guard
1 Po
sition of the needle guard
sition of the needle guard
sition of the needle guard
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.
< 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.
【9】ADJUSTING THE FEED DOG & STITCH LENGTH
9 9 9 9 - - - - 1 Feed dog height & tilt
1 Feed dog height & tilt
1 Feed dog height & tilt
1 Feed dog height & tilt
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.
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 >
When adjusting the height of the feed dog, tilt the looper
holder toward the front of the machine.
Adjustment is made by loosening
20
With the
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