Singer 281-21 - FEED DOG ADJUSTMENTS AND STOP SCREWS; Feed Dog Height Continuation and Stop Screws; Centralizing the Feed Dog

SETTING THE FEED DOG HEIGHT (Continued)
If desired height cannot be obtained as previously
stated, loosen clamp screw on crank shown in Fig. 37.
Raise or lower feed bar as required to obtain desired
height. Securely tighten clamp screw.
Level the feed dog by means of hinge pin eccentric
as previously instructed. Securely tighten the two hex~
head
screws shown in Fig.. 37.
NOTE: Variations in feed dog height may sometimes
be necessary to balance height in relation to
presser foot pressure.
AVAILABLE FEED ECCENTRIC STOP SCREWS
Machine is prevented from making longer stitches
than a predetermined maximum by a stop screw shown
in Fig. 38, in
the feed eccentric.
The following stop screws are available for these
machines:
140256, 7 stitches per inch
140257, 5)4 stitches per inch
140258, 14 stitches per inch
140568, 8 stitches per inch
CENTRALIZING THE FEED DOG
Feed dog should never contact edges of throat plate
but should move midway between sides of throat plate
slots and maintain its movement equidistant from'front
and rear
edges of throat plate slots.
Sidewi se Setting
To move feed dog toward left or right, loosen
the
two clamp screws on feed bar carrier and the clamp
screw on feed bar crank, shown in Fig. 39.
Move feed bar as required to position feed dog mid
way between sides of throat plate slots..
Make certain that feed dog height is correct as in
structed previously.
Securely tighten all three clamp
screws.
CRANK
FEED BAR
HINGE PIN
ECCENTRIC
CLAMP SCREW
HEX-HEAD
SCREWS
Fig. 37. Feed Bar and Crank
FEED ECCENTRIC
STOP SCREW
Fig. 38. Feed Eccentric Stop Screw
CLAMP SCREW
FEED BAR CRANK
FEED BAR^ U)
TWO CLAMP SCREWS FEED BAR CARRIER
Fig. 39. Centralizing the Feed Dog
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From the library of: Superior Sewing Machine & Supply LLC