15
7777----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. 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 clearance
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
8888----1 Position of the needle guard
1 Position of the needle guard
1 Position of the needle guard
1 Position 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.
【
9
】
ADJUSTING THE FEED DOG & STITCH LENGTH
9999----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. 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.
