31
q
r
t
e
w
q
y
o
!0
i
u
e
t
r
23. Adjusting the top cover stitch
mechanism unit 5
NOTE:
Make the adjustment on pages 27 to 31 in order after
replacing the top cover stitch mechanism unit.
Adjusting the spreader and left needle timing
The clearance of the tip of the left needle
q
and the
upper edge of the needle plate
w
should be 2.2 to 2.6
mm when the spreader
e
is moving from the right side
and the tip of the spreader
r
meets the left edge of the
left needle
t
.
z
Before proceeding the adjustment:
・
Be sure the needle bar height is correct (see
page 11).
・
Be sure that the TC thread guide position is correct
(see page 27).
・
Be sure that the clearance between the TC thread
guide and the spreader is correct (see page 28).
・
Be sure that the adjusting the spreader height and
the clearance between left needle and the spreader
is correct (see page 29).
・
Be sure that the adjusting the spreader and
・
TC thread guide position is correct (see page 30).
x
Remove the face cover, top cover, belt cover, free
arm cover and rear cover (see pages 1 to 4 and 8).
c
Replace the Schmetz ELx705, size 90/14 needle with
the Schmetz ELx705, size 80/12 needle.
v
Lower the top cover stitch lever.
Remove the presser foot and the foot holder.
b
Remove the setscrew
y
.
Remove the center needle thread tension dial
u
.
n
Turn the handwheel toward you.
Loosen the hexagonal socket screws
i
(2 pcs.)
when the spreader
e
is moving from the right side
and the tip of the spreader
r
meets the left edge of
the left needle
t
.
NOTE:
Adjust as below while pressing the top cover stitch
cam
!0
against the ring
o
.
If the clearance is larger than 2.6 mm, turn the
top cover stitch cam
!0
in the direction of A.
If the clearance is smaller than 2.2 mm turn the
top cover stitch cam
!0
in the direction of B.
m
Tighten the hexagonal socket screws
i
(2 pcs.).
Turn the handwheel toward you to raise the needle at
its highest position.
Raise the top cover stitch mechanism unit.
NOTE:
Be careful not to raise the top cover stitch mechanism
unit before raising the needle.
The spreader may hit the needle bar threader and it
cannot be stored into the machine.
The failure to do so may cause the damage to the
spreader or top cover stitch thread guide.
,
Replace the Schmetz ELx705, size 80/12 needle with
the Schmetz ELx705, size 90/14 needle.
.
Attach the rear cover, free arm cover, belt cover,
top cover and face cover.
The tip of the
spreader
should match
with the left
side of the
left needle
2.2 to 2.6 mm
Direction A
Direction B
i
Summary of Contents for CoverPro 3000 PROFESSIONAL
Page 3: ......
