Installing The Ak Motor - JUKI AK-157 Instruction Manual

(4) Installing the AK motor



A

Collinear
If the cam roller  is
raised, the problem
that the presser foot
sole fails to come in
contact with the throat
plate can occur.

❾

B
❾
– 5 –
There is a marker line on the surface of cam  .
1)
Adjust so that marker line A on the cam and
end face B of motor fixing plate ❾ are collinear
to each other.
Temporarily fix presser motor asm.  with
2)
three presser motor asm. setscrews  .
At this time, move presser motor asm.  up
and down to adjust its position to such a posi-
tion that it does not lift up cam roller  . (After
the adjustment, the presser foot is in the float-
ing state.)
Adjust presser motor asm.  so that
cables and wires located inside the
sewing machine are positioned above
the fixing plate ❾.If the cables and wires
are positioned under the fixing plate ❾,
they will interfere with the cam  .
Securely tighten three presser motor asm. set-
screws  while bringing cam roller  and cam
 into light contact with each other. (Check to
make sure that the presser foot sole does not
float above the feed dog.)


❻
Light-contact state