JUKI LU-1510N-7 Engineer's Manual page 13

Adjustment Procedures
1. Set the stitch dial to "0".
2. Turn the handwheel to bring the needle bar to the lowest dead point
of its stroke.
3. Loosen clamping screw
4. In the state that the presser foot is raised, adjust the clearance be-
tween presser bar
position where the distance from the top surface of the throat plate
to the presser foot is 60 mm (standard gauge type) or 47 mm (LU-
2200 gauge type), Then securely tighten clamping screw
needle bar rocking rear arm.
(Caution) Tighten the screw so that the needle bar rocking shaft
has no thrust play.
Adjustment Procedures
1. Set the stitch dial to "0 ".
2. Turn the handwheel to bring the needle bar to the lowest dead
point of its stroke.
3. Loosen clamping screw
4. Move the feed base
center of the needle hole in feed dog
clamping screw in the feed rocker. (a = a')
Checking method
1. Set the stitch dial to the maximum.
2. Turn the handwheel and make sure that feed dog
in contact with the throat plate at the position where the feed dog
travels fully to the front or to the rear.
in the needle bar rocking rear arm.
and walking bar to dimension A at the
in the feed rocker.
and adjust so that needle
. Then securely tighten
Results of Improper Adjustment
o Stitch skipping or needle breakage
o Poorly tensed stitches will result.
in the
Results of Improper Adjustment
o The throat plate comes in contact
enters the
o Irregular stitches may result.
does not come
– 9 –
will result.
with the feed dog and contacting
noise occurs and the throat plate
or the feed dog may be damaged.