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3. Height of presser foot
™ Adjust the height in the state that hand lifter lever
is raised.
™ Clearance provided between top surface of throat
plate and lower face of presser foot is 7.0±0.5 mm.
™ Perform adjustment with presser bar connection
setscrew.
4. Height of feed dog
™ Set stitch dial to 2 and bring feed dog to its highest
position.
™ See the height at top end of this side of feed dog.
™ Bottom of tooth of feed dog should be aligned with
top surface of throat plate.
(Figure on the right side : protruding amount from
top surface of throat plate is 1.2±0.1 mm.)
™ Perform adjustment with vertical feed shaft arm
1.
5. Feed timing
™ Set stitch dial to the maximum.
™ Lower feed dog in the normal feed operation and align it with top surface of throat plate.
™ At this time, clearance provided between needle top and top surface of throat plate is 0±0.2 mm.
™ Perform adjustment with feed cam setscrew.
6. Needle-to-hook timing
™ Loosen three setscrews in hook.
™ Align lower engraved line 1 on needle bar with
bottom end face of needle bar bushing when needle
bar goes up from its lower dead point.
™ Align blade point of hook with center line of needle,
check clearance between needle and hook, and
tighten setscrews.
Remove bobbin case positioning finger to improve
the work.
Throat plate
Presser foot
7.0±0.5 mm
Top surface of throat plate
1.2±0.1 mm
Feed cam setscrew
Needle (HA x 1 #14)
Top surface of throat plate
0±0.2 mm
Hook
1
1
1 Vertical feed shaft arm
2 Shaft arm setscrew
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