JUKI MO-6700D Series Manual page 9

Adjustment Procedure
1) Take off the upper cover, loosen setscrew
crank and move needle driving forked crank
the needle height.
(Caution) Do not fully loosen the setscrew
forked crank
If the needle driving forked crank has got out of position
laterally when its setscrew was loosened, fully loosen the
setscrew and turn pulley to allow the forked crank to turn
until it settles by itself. Then tighten the setscrew to fix
the forked crank at that position.
Adjustment Procedure
1) Loosen setscrews
base back and forth to adjust dimension A or B.
of needle driving forked
.
of throat plate base
up or down to adjust
Needle driving shaft
of the needle driving
and move throat plate
– 5 –
Results of Improper Adjustment
o Any other needle height than
specified here will badly affect the
action of the lower looper, the
timing for catching the upper
looper thread, etc.
o Improper lateral position of the
needle driving forked crank will
cause seizure, play, or other
troubles.
Results of Improper Adjustment
o Improperly positioned throat plate
with cause needle breakage,
contact of the needles will the
throat plate, or other troubles.