MODEL 3128
12
MECHANICAL ADJUSTMENT
CLEARANCE BETWEEN NEEDLE AND
NEEDLE PLATE IS 0.15 MM OR MORE.
FIGURE "D"
-0.05 - 0.10 MM
PROJECTIONS
(2 SPOTS)
BASE PLATE
SETSCREW "A" (2 PCS.)
DIRECTION "B"
NEEDLE BAR SUPPORTER
ADJUSTING PLATE
CLEARANCE BETWEEN NEEDLE AND HOOK (NO.1)
TO CHECK:
The clearance between needle and shuttle hook should be -0.05 - 0.10 mm.
If not, make an adjustment as follows:
ADJUSTMENT PROCEDURE:
1. Remove the face cover (see page 4).
2. Set the pattern selector dial at maximum zigzag width, and turn the handwheel toward you to bring
the needle at left needle position.
3. Loosen 2 setscrews, slide the needle bar supporter adjusting plate in the direction of arrow as
shown below, and adjust the clearance between needle and shuttle hook to 0 - 0.15 mm tighten
setscrews.
* If the clearance is too large (more than 0.1 mm), slide the needle bar supporter adjusting plate in
the direction of
"
B
"
.
* If the clearance is too small (less than 0 mm), slide the needle bar supporter adjusting plate in the
direction of
"
C
"
.
Note: When adjusting the clearance, be sure to slide the needle bar supporter adjusting plate while
guiding the two projections along the edge of the base plate.
Note: Clearance between needle and needle plate is 0.15 mm or more as shown in figure
"
D
"
. If not,
adjust the clearance between needl and shuttle hook by using method of adjustment No.2 in
page 13. After readjustment, check if the clearance between needle and needle plate is 0.15
mm or more.
4. Attach the face plate.
DIRECTION "C"
