Singer 246K43 - TO SET THE NEEDLE THREAD CONTROLLER

TO SET THE NEEDLE THREAD CONTROLLER
___________________ ,(5.eafJgs._33_ and 34)
Needle Thread Controller 164151 (J3, Fig . 33)
is used for three-thread TIGHT stitch.
Needle Thread
Controller 164381 (J3, Fig. 34)
is used for two-thread stitch and for purl-on-the-
edge stitch.
FUNCTION:
The needle thread controller J3 should aid in
the setting of the stitch by taking up the slack of
needle thread as the needle finishes its downward
stroke; thus setting the stitch as the needle thread
loop is shed from the loopers.
When needle is at its highest position, needle
thread should run under clearance U3 of needle
thread controller J3, shown in Fig. 33 or in fork
U3 of controller J3, shown in Fig. 34.
VARIATIONS: The desired setting for needle thread
controller may vary with changes in thread, spe-
cial fittings or
materials in use.
ADJUSTMENT:
Swing presser bar A2 and cloth plate Q out
to the left.
Remove screws
XS and oil splash guard ZS.
Turn machine pulley over away from operator
until needle is at its highest position.
loosen two screws V3 and move needle thread
controller J3 toward the front to tighten the stitch
or
toward the rear to loosen the stitch, as required.
Then tighten
the two screws V3 and recheck the
stitch setting.
18
Fig. 33. Needle Thread Controller
164151 in Correct Relation to
Needle Thread
Fig. 34. Needle Thread Controller
164381 in Correct Relation to
Needle Thread
Figs. 33 and 34 show the correct position of the
needle thread as it passes the needle thread con-
troller
J3. To. check this condition, remove two
screws L3 and presser bar housing G4.
After
making certain that needle thread is in
the correct position, replace presser bar housing
G4 and fasten with two screws L3.
Replace splash guard ZS with two screws XS .
From the library of: Superior Sewing Machine & Supply LLC