17
9. Rear Needle Guard Height
The upper edge of the rear needle guard
q
should be
2.7 to 2.9 mm below the lower edge of the tip of the
looper
w
when the tip of the looper
e
meets with the
right side of the needle
r
.
z
Remove the free arm cover and needle plate.
x
Turn the handwheel toward you until tip of the
looper
e
matches with the right side of the needle.
c
Loosen the setscrews
t
and move the back needle
guard
y
up or down to set the upper edge
q
2.8 mm
below the lower edge
w
of the tip of the looper.
v
Turn the handwheel toward you slightly to bring the
tip of the looper behind the needle.
Check the clearance between the rear needle guard
and the needle (Schmetz ELx705, size 80/12).
It should be 0.1 to 0.3 mm.
NOTE:
If the clearance is out of the standard range, adjust it by
re-positioning the front needle guard.
However, the clearance between the tip of the looper
e
and needle
r
should be 0 to 0.05 mm.
b
Tighten the setscrews
t
.
n
Attach the free arm cover and needle plate.
r
r
e
t
y
q
y
w
e
0.1 to 0.3 mm
2.7 to 2.9 mm
0 to 0.05 mm
Summary of Contents for CoverPro 3000 PROFESSIONAL
Page 3: ......
