7)
Install throat plate® , feed dog
@and
pr
esser
foot®
for the needle feed, and adjust the lateral and longitu-
dinal positions
of
the feed dog.
*Insta
ll the feed dog parallel
to
the feed dog slot
of
the throat plate.
*Adj
u
st
the lateral position
of
the feed dog by loosening clamping screw
CD
in the feed rocker ba
se
arm and
setscrew
(2)
in the feed driving carm, and moving the feed base to the right or l
ef
t when the lateral position
cannot be adjusted with the looseness
of
the setscrew hole
of
the feed dog.
*Adjust
the longitudinal position
of
the feed dog by loosening the feed rocker base arm at the position where
the center
of
the needle hole
of
feed dog almost a
li
gns with the center
of
needle when the scale
of
feed dial
is set to
0 (zero) and the needle bar is in the lowest dead point.
*
Af
t
er
the adjustment, check that the feed dog and the feed dog slot
of
the throat plae do not come in contact
with each other.
* When the feed driving cam is loosene
d,
be
careful that the longitudinal position between the feed driving cam
and the feed rocker base arm is not slipped. (Be careful that the feed driving cam is not excessively pressed.)
;tf,({t:
tt·~
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f{
Standard: Needle tip aligns with top surface
of
throat plate.
WH:
4mm
Heavy-weight materials: 4mm
8)
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8) Loosen setscrew ® in the lower sprocket inside the machine bed and adjust the timing between the needle
and the feed dog for the needle feed.
* Fix the feed driving cam so that it does not tum, and tum the handwheel to change the timing.
* The timing between the needle and the feed dog for the needle feed is approximately
180 ° different form that
for the bottom feed.
- 35 -
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