Singer 246K43 - TO SET THE LEFT LOOPER IN RELATION TO THE NEEDLE

TO SET THE LEFT LOOPER IN RELATION TO THE NEEDLE
------------- Using Gauge 164592 on Machines 246K42 and 246K43
and Gauge 164460 on Machine 246K45
(See Figs.
35 and 36)
Z2
Fig. 35. left looper Assembly
Fig.
36. Settings
Machine 246K42 is regularly fitted with ONLY
one looper (the "left" looper).
19
PREPARATION:
Check the needle with needle gouge 164588,
as instructed on page 7.
Set
the needle in the machine as instructed on
page 8.
Remove
throat plate and chip guard.
loosen set screw 02, Fig. 35 in left looper
holder
C3.
Set left looper Z2 all the way down into its
holder.
Securely tighten set screw
02.
CHECKING LEFT TO RIGHT POSITION:
Place gouge J2 on throat plate seat V2 as
shown in Fig. 36.
Turn machine pulley over away from you until
needle clomp R2 reaches its lowest position and
then rises sufficiently to permit "HIGH" end of
gouge J2 (.422 inch) to pass between needle
clomp R2 and throat plate seat, as shown in
Fig. 36.
When needle clomp R2 just contacts top surface
U4 of gouge, the tip of left looper Z2 should be
between centre and left side of needle.
SETTING LEFT TO RIGHT POSITION:
loosen screw 52, Fig. 35. (This screw may not
be present on some machines.)
To move left looper Z2 toward rig· ht, loosen
A3
and carefully tighten screw 83 an equal
amount, as required.
To move left looper Z2 toward right, loosen
screw 83 and carefully tighten screw A3 an equal
amount, as required.
Recheck setting.
When correct setting is ob-
tained securely tighten clamping screw 52.
CHECKING FRONT TO REAR POSITION:
Turn machine pulley so that loopers move
through one complete sewing cycle. Observe
looper movement.
The left looper must
rub lightly on the needle
as it posses toward the right.
S ETT ING FRONT TO REAR POSITION:
Turn machine pulley over away from you until
point
of looper Z2 just reaches needle.
loosen screw E2 just enough to allow movement
of looper holder C3.
loosen set screw W2.
Move looper holder
C3 toward rear of machine.
Turn set screw W2 inward until proper relation
between left looper and needle is obtained.
Securely tighten screw E2.
Replace throat plate and chip guard.
From the library of: Superior Sewing Machine & Supply LLC