Singer 263-1 - FEED ECCENTRIC AND FEED-LIFTING ECCENTRIC; FEED ECCENTRIC; FEED-LIFTING ECCENTRIC

n
FEED ECCENTRIC AND FEED-LIFTING ECCENTRI
m
FEED
ECCENTRIC
LATER
CONNECTING
ROD
1
SOONER
KEEP GEARS IN
MESH AT ALL
TIMES
THREE FEED
ECCENTRIC SCREWS
FEED-LIFTING
ECCENTRIC
THREE FEED-LIFTING
ECCENTRIC SCREWS
Fig. 32. Adjusting and Timing the Feed
FEED ECCENTRIC
Feed eccentric shown in Fig. 32 should be set so
that feed dog starts its feeding movement immediately
after needle leaves material and stops feeding move
ment before needle enters material.
To adjust, remove large cap from top of machine
arm and loosen the three feed eccentric screws shown
in Fig. 32. (Entire arm top cover is removed in this
illustration to show relationship of associated ports.)
Turn feed eccentric over toward operator to start
and stop feed motion sooner, or away from operator to
start and stop feed motion later.
Tighten one of the three feed eccentric screws and
check the timing. Reset if necessary. Then tighten all
three screws and replace large cap.
Check timing of looper thread take-up as instructed
on page 11.
To check the setting, rotate machine pulley over
toward operator until feed dog begins to move forward.
At
this point, feed dog should also begin to rise above
throat plate.
FEED-LIFTING ECCENTRIC
Position of feed-lifting eccentric, shown in Fig. 32,
defines the shape of the elliptical path taken by the
feed dog in its rise and fall. Thus, the feed-lifting
eccentric determines distance feed dog will rise and
fall and the point where feed dog will contact and drop
away from material.
To set, remove cover from top of machine arm and
loosen the three feed-lifting eccentric screws, shown
in Fig. 32.
Turn lifting eccentric until connecting rod. Fig. 32,
is
at its lowest point. Screws A, B and C, Fig. 32
should now be set in line as shown. Tapered set screw
C in bevel gear should be seated in timing slot on
shaft. Tighten screws A and C.
Tighten
the three lifting eccentric screws. Replace
arm top cover.
CAUTION: Bevel gears shown in Fig. 32, have
been lapped together
at the factory and must be kept
in mesh at all times.
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From the library of: Superior Sewing Machine & Supply LLC