[I] ROTARY HOOK TO NEEDLE PLATE GAP
0.6-0.9
mm
Ill Standard models
* The rotary hook 0
to
needle plate 8 gap should be
0.6
to
0.9
mm. Loosen screw 0 and adjust the vertical rotary hook
0 position
to
adjust the gap.
Ill Thread cutter models
* The rotary hook 0 to needle plate 8 gap
is
set to 1
.3
mm
with
a spacer
0.
*
When
replacing the rotary hook. loosen screw
0.
and remove the rotary hook
0.
being careful not to lose the spacer
O.
• Somet1mes
two
spacers 0 are required. Both should
be
inserted under the rotary hook.
(I]
ROTARY HOOK TO BOBBIN CASE OPENER GAP
* The rotary hook 0 to bobb1n case opener 8 gap should
be 0.2 mm when the bobbin case opener is pulled all
the way m the direction of the arrow. Loosen screw 0
and move the bobbin
r:ase
opener 8 right
or
left to
adjust.
1.
Needle
to
rotary hook point gap . . . . . . . . . . . .
•Improper
adjustment may result in improper
right
and left
needle stitch1ng.
skipped stitches. thread breakage.
broken
needles.
2. Needle bar rise. height
....................
.
3.
Rotary hook to needle plate gap
4. Rotary hook to
bobbm case opener gap
•Improper
adjustment may result in improper
right
and left
needle
stitching. skipped stitches. thread breakage.
• Excessive gap: Shuttle body may
not
be
properly
positioned near the needle plate.
•Insufficient
gap: Improper stitch tightness
• Excessive gap: Loose stitches.
improper
st1tch tighten-
ing
•I
nsuff1c1ent gap: Damage to shuttle body
•
Be
sure
to
readjust rotary hook lubrication after replacing the rotary hook.
..
..
-----·---~·-·
_____
___,
From the library of: Superior Sewing Machine & Supply LLC
To Next Page
