CENTRALIZING
THE
FEED
DOG
(Continued)
Lengthwi se Setting
Set machine for longest stitch and loosen hex-head
screw, shown in Fig. 57, on rock shaft.
edges
of
throat
plate
slots.
Securely tighten hex-head screw.
Move
feed bar carrier and rock shaft so that
move-
Check linkage
for
freedom
of
movement
to reduce
ment
of
feed
dog
is equidistant
from
front
and
rear
wear
and
insure
maximum
efficiency.
FEED
BAR
CARRIER
ROCK
SHAFT
Fig. 57.
Feed
Bar Linkage
HEX-HEAD
SCREW
SETTING
THE
FEED
DOG
HEIGHT
1/32"
FOR
"WASH
AND
WEAR"
plRALi^tfi
^TO
1
11.-.-.s...
PARALLEL
TO
material
throat
plate
'
THROAT
3/64"
FOR
ALL
OTHER
MATERIALS
PLATE
Fig. 58. Correct Height of Feed
Dog
HINGE
PIN ECCENTRIC^ ^HINGE PIN ECCENTRIC
!
SET
FOR
3/64"
RISE
SET
FOR
1/32"
RISE
Fig. 59. Feed Bar Hinge Pin (Eccentric)
Feed dog height should be
adjusted
with machine
set
for longest stitch. ALL the teeth of the feed dog
should
rise
equally high above the throat plate, as
shown in Fig. 58.
The
correct
height of feed dog for wash and wear
fabrics is 1/32 inch above throat plate.
For all other fabrics the correct height is
3/64
inch
above
throat
plate.
To set feed dog at correct height, loosen the two
hex-head screws shown in Fig. 60.
To
obtain
a
height
of 3/64
inch
above
throat
plate,
turn hinge pin eccentric, Fig. 59, until flat on slotted
end
is at
top
as
shown.
To obtain a height of 1/32 inch above throat plate,
turn
hinge
pin
eccentric
until flat is
at
bottom.
To
raise
or
lower REAR
END
of feed dog, turn
hinge pin eccentric out of its set position, as required.
If desired height cannot be obtained as previously
stated, loosen clamp screw on crank shown in Fig. 60.
Raise or lower feed bar
as
required to obtain desired
height. Securely tighten clomp screw.
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