Singer 246K43 - TO SET THE RIGHT LOOPER OR THE SPREADER (CONTINUED)

TO SET THE RIGHT LOOPER OR THE SPREADER (CONTINUED)
CHECKING RIGHT TO LEFT POSITION:
old gauge so that end marked "HIGH" on
auge just touches left side of needle, as shown
at J6 in Figs. 37 and 38.
When right looper (or spreader) D3 is at its
extreme left position it should just touch surface
CS on gauge, as shown in Figs. 37 and 38.
At this setting bracket X2, Fig. 39 should be
approximately at midpoint of its extreme left to
right positions on casting.
ADJUSTMENT
OF RIGHT TO LEFT POSITION:
Loosen the two screws G3 and move bracket
X2, as required, to bring right looper (or spreader)
D3 in correct contact with gauge surface CS.
ecurely
tighten two screws Gl.
CHECKING HEIGHT:
Place gauge J2 firmly upon throat plate seat
V2 with end marked "LOW" toward needle, as
shown in Fig. 39.
When right looper (or spreader) D3 is at its ex-
treme left position its highest point should just
touch
undersurface J4 on gauge, as shown.
ADJUSTMENT FOR HEIGHT:
NOTE: When installing a right looper (or
• reader), loosen nut Q3, Fig. 39, and turn screw
3 anti-clockwise to
align the screwdriver slot
in head of screw H3 with centre-line of looper car-
21
-
rier 53, as shown in Fig. 39. Then loosen screw Fl.
Place collar Kl on looper shank and insert right
looper in looper holder G3, as shown in Fig. 39.
Adjust the height of the right looper (or
spreader), in the following manner-
Loosen screw F3 and nut Q3, Fig. 39.
Raise or lower right looper (or spreader) Dl in
carrier
as required.
Press
collar Kl firmly against top of carrier 53.
Securely tighten screw F3 and nut Q3.
CHECKING FRONT TO REAR POSITION:
Turn machine pulley over away from operator
through one full revolution. Observe position of
right looper (or spreader) in relation to needle
during this full movement.
Right looper (or spreader) D3 should pass be-
hind left looper head and in front of needle;
brushing lightly on needle.
ADJUSTMENT OF FRONT TO REAR POSITION:
Loosen nut Q3, Fig. 39.
Turn right looper (or spreader) D3 in carr i er 53
as required.
Securely
tighten nut Q3.
Recheck each setting and securely fasten all
parts loosened earlier.
From the library of: Superior Sewing Machine & Supply LLC