Singer 281-21 - SETTING THE PRESSER BAR HEIGHT

CENTRALIZING THE FEED DOG (Continued)
Lengthwi se Setting
Set machine for longest stitch and loosen hex-head
screw, shown in Fig. 40, on rock shaft.
Move feed bar carrier and rock shaft so that move
ment of feed dog is equidistant from front and rear
edges of throat plate slots.
Securely tighten hex-head screw.
Check linkage for freedom of movement to reduce
wear and insure maximum efficiency.
©
FEED BAR CARRIER
ROCK SHAFT
Fig. 40. Feed Bar Linkage
HEX-HEAD SCREW
SETTING THE PRESSER BAR HEIGHT
When presser foot rests firmly on throat plate, with
feed dog below throat
plate, there should be a slight
clearance between guide and lifting bracket, shown in
Fig. 41.
When presser foot is raised to highest point end
needle bar is at bottom of its stroke, top of presser
foot should not contact needle bar.
To adjust for clearance between guide bracket and
lifting bracket, remove large plug from face plate and
loosen clomp screw thus made
accessible.
This clamp screw is shown in Fig. 41. Face plate
is removed in this illustration only to show entire
presser bar assembly.
Raise or lower guide bracket as required.
Make certain that presser bar is correctly turned,
with needle centered in needle slot (or between the
toes) of presser foot then securely tighten clamp screw.
16
CAUTION: Whenever guide brocket has been moved
on presser bar, inspect the check spring for correct
setting as previously instructed.
CLAMP
SCREW
CLEARANCE
LIFTING
BRACKET
0^0
GUIDE
BRACKET
Fig. 41. Presser Bar Assembly
From the library of: Superior Sewing Machine & Supply LLC