–
10
–
12. Knee lifter lever
Preparation
○ Remove outer components.
(Excluding belt cover and motor cover)
○ Raise presser foot.
❷
Knee lifter lever shaft
❽
Knee lifter link asm
(claw lever plate)
❼
Claw lever shaft
setscrew
SM5041255SN
❸
Claw lever actuating plate
setscrew SM8040602TP
❻
Knee lifter lever
❺
Knee lifter lever shaft
stop plate setscrew
SM5040855SN
❹
Knee lifter link snap pin
❶
Knee lifter lever shaft spring setscrew
SM5030455SF
Knee lifter
lever shaft
❾
Claw lever
actuating
plate
Disassembly Assembly Point
○ Remove
❶
nut (left side only).
○ Remove
❷
setscrew and remove
tube presser.
○ Remove
❸
setscrews and remove
wire holder mas. asm.
○ Remove setscrew in thread release
❻
plate shaft and remove thread re-
lease
❹
plate.
When removing the wire from frame,
make sure of wire route in frame.
○ Lay wire in frame.
○ Connect thread release
❹
plate with disk pressure re-
lease connecting
❺
link.
○ Assemble wire holder mas.
asm. and tighten with
❸
set-
screws.
○ Fix
❷
and
❶
in the reverse
side of machine bed.
○ Pass the wire through full re-
verse side of stitch dial.
○ Contact
❹
and
❺
with each oth-
er.
○ For
❷
, tube has to come out by
13 mm from tube presser.
○ Tube presser and tube regarding
❷
should be on the same face.
See item 5 on page 28 for
❶
.
Disassembly Assembly Point
○ Remove snap
❹
pin.
○ Remove
❺
setscrews and remove
❻
.
○ Remove
❶
setscrew and take out le-
ver spring.
○ Lower
❷
and turn it to the position
where
❸
can be removed.
○ Remove
❸
, remove claw lever actu-
ating plate, and draw out
❷
.
○ Remove claw lever shaft
❼
setscrew.
○ Remove
❽
link asm..
○ Attach
❽
to frame and tighten
❼
set-
screws.
○ Set
❷
lever shaft, attach
❾
claw lever
actuating plate and tighten it with
❸
.
○ Attach lever spring and tighten with
❶
.
○ Raise frame, attach
❻
knee lifter lever
to knee lifter lever
shaft, and tight-
en it with
❺
.
○ Enter
❹
snap pin.
○ There should not be
a play in the axial di-
rection of
❷
knee lifter
lever shaft.
11. Wire holder
Preparation
○ Remove outer components.
(Excluding belt cover and
motor cover)
○ Remove presser bar.
❶
Nut of setscrew
(opposite side 9 mm)
NS6620310SP
❷
Wire tube presser setscrew
SM4040655SN
❸
Wire holder setscrew
SM5040855SN
❺
Disk pressure release
connecting link
❹
Thread release plate
❻
Thread release plate shaft