Singer 281-5 - Setting Feed Roller at Correct Height; To Synchronize the Feed

SETTING FEED ROLLER AT CORRECT HEIGHT
(MACHINE 281-20)
CLAMPING
SCREWS.
WEAR PLATE
FEED ROLLER
LIFTING
GUIDE
Set presser bar at correct height as instructed on
page 23.
When presser foot rests firmly upon throat plate,
feed roller should clear the wear plate beneath it by
approximately .003 inch (equal to about the thickness
of one sheet of newspaper.)
To adjust, turn machine pulley, over toward you,
until feed dog teeth are below top surface of throat
plate.
Raise presser foot lifter lever, (raising feed roller)
and place piece of paper upon wear plate. Lower feed
roller carefully upon paper.
Loosen clamping screw on feed roller lifting guide,
shown in Fig. 66.
While feed roller rests upon paper, press down
firmly upon lifting guide and securely tighten clamping
Fig. 66. Correct Height: Feed Roller
on Machine 281-20
TO synS^^nTze f
(MACHINES 281-6, 281-20 AND 281-23)
SET SCREW
Top-feed must be synchronized with bottom-feed
so that both move from front to rear simultaneously,
feeding the material smoothly and firmly.
BOTTOM-FEED: Before machine
leaves factory, feed-
lifting -eccentric - and-bevel -gear and feed -eccentric
are timed for average sewing conditions; having timing
screw in each eccentric enter groove provided for it in
arm shaft.
TOP-FEED (See Fig. 67): To synchronize top-feed
with bottom feed motion, remove arm top cover, as
shown in Fig. 67, and loosen the TIMING SCREW and
the other two screws in the fop feed eccentric.
Reset eccentric by rotating it slightly TOWARD
operator to start top-feed movement SOONER, or AWAY
FROM operator to start top-feed movement LATER.
Tighten the three screws in the eccentric.
© later
N SOONER
TOP-FEED '
ECCENTRIC
SET
SCREW
CONNECTING ROD
AT LOWEST POINT
TIMING SCREW
ON TOP
Replace arm top cover, fastening it with four screws.
Fig. 67. Timing the Top-Feed Eccentric
From the library of: Superior Sewing Machine & Supply LLC