If for any reason, it is necessary to alter the timing of feed and feed lifting eccentric, the eccentric should be
adjusted and locked in desired setting with the timing screw M and the set screw N.
NOTE: Whenever the timing
of
the feed is changed, sewing hook should be checked for necessary adjustment
also as instructed on page 5.
TO
SET
FEED
DOG
AT
CORRECT
HEIGHT
FULL DEPTH OF TEETH
0.8mm
- 591D200A, 591C200A THROAT PLATE
I
1.0mm
-
591D300A, 591D308A,
591C300A
.
t'
Fig. 12
When the feed dog is at its highest position, approximately the
full depth of allthe teeth should project abovethe top surfaceof the
throat plate, as shown in Fig. 12.
Before checking the height
of
the feed dog, set the machine for
the longest stitch.
To adjust, loosen the clamping screwP, Fig. 13 and raise or lower
the feed dog (which is fastened to the feed bar Q, Fig. 13) as re
quired. Then securely tighten screw P.
The feed dog should be level at the top
of
its feed path.
If
not,
tip machine back and
loosen feed bar hinge pin clamping screw A4
just enough to
tum
feed bar hinge pin (ec
centric) B4, Fig. 13. Insert screwdriver into
access hole in end
of
bed and
tum
hinge pin B4
as required to level the feed dog. Securely
tighten clamping screw A4. Check feed dog
height.
If it is found necessary to adjust the feed
dog height due to the material being sewn
and/or exchanging the feed dog and throat
plate, it should be adjusted in the manner ex
plained above.
m
LOWER
HIGHER
Fig.
13
NOTE: Feed dog should
not
contact edges
of
the throat plate slots during its movement
but
should be located
centrally in relation
to
the front, rear and sides
of
throat plate slots.
-7-
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