Siruba D007R, Instruction Book

Page: 34 / 36

-15-
3-10 The adjustment of fabric cutter and presser foot.
3-10-1.Please use the screw b to hold the upper knife holder guide collar C.
Then, to push upper holder guide collar C up to close the top of fixed
hole and tighten it by screw b ( Fig 1). Loosen screw Q and install the
lower knife a. The tip of lower knife has to aim the center of shortest
needle. To turn the hand-wheel and move the moving knife holder F to
the left dead point. Loosen the screw R and adjust the clearance of
upper and lower knife. The touch point clearance between the k point
of upper knife c and lower knife a is 0.5mm (Fig 1A).
3-10-2.How to adjust the pressure of moving knife spring and the front -rear
position of knife blade. Loosen the screw d of knife guide collar e. Then,
please push the upper knife holder h up and insert a 2mm pad between
knife holder guide collar e and knife holder shank support f (Remark :
The presser foot couldn't be moved when you push the knife holder h).
The clearance between the fixed knife and moving knife is 0.05mm ~
0.1mm which to avoid the moving knife
hit the fixed knife. Then, tighten the screw
d (Fig 2).
Fig 3
g
Fig 4
i
j
2mm
Fig 2
h
R
e
f
d
Left
c
a
c
0.05~0.1mm
The edge of fixed knife
(Dotted line)
The edge of movingd knife
(Dotted line)
Fig 1A
a
k
A
Left
B
c
0.5mm
F
Q
Fig 1
b
Screw
C
Fixed screw hole
Push up
R
Please switch off electric power
before installation & maintenance.
Warning !
3-10-3.When the presser foot is lifted. Please
avoid the presser bar connecting bracket
to hit the machine body (Fig 3) and the
upper knife holder h hit the knife holder
shank support f (Fig 2). When the hit is be
happen.Please loosen the screw i or screw
j of presser foot lifter shaft to adjust It
(Fig 4).