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Removal procedure of the gauge and upper feed roller
1.
Loosen the setscrew
the packing, which are attached to the rear side.
2.
Loosen the nut
3.
Remove the roller pressure regulating screw
4.
Loosen the setscrew
securing the link, lift the upper feed roller shaft
roller assembly
(Caution) When the upper feed roller shaft
crank
. Therefore, remove the upper feed roller assembly
slightly.
5.
Loosen the pressure regulating nut
6.
Loosen each setscrew
7.
Loosen the setscrew
presser yoke
after lifting the presser shaft
8.
Loosen the setscrew
Removal of the setscrew allows you to remove the looper cover
9.
Loosen three setscrews
10. Loosen the setscrew
11. Loosen the setscrew
12. Loosen the setscrews
(Caution) The disassembly procedure mentioned above mainly describes about the differential feed
mechanism.
As to the 1 piece feed mechanism, the differential feed dog
provided.
Disassembly procedure
and remove the needle bar and the roller cover
with a 3/8" spanner and remove the washer and clutch rod
securing the upper feed roller shaft with a 3/32" key wrench, remove the setscrew
.
and remove the pressure regulating plate spring assembly
that securing corresponding needles and remove three of each needle
securing the presser yoke with a 5/64" or 2mm key wrench and remove the
with a 3/32" key wrench and remove the setscrew
securing the throat plate and remove the throat plate
and remove the differential feed dog
and remove the main feed dog
securing the loopers
.
and the guide finger
is lifted, the guide finger
.
and spring stud
.
.
and remove the loopers
– 11 –
together with the face cover and
.
, and remove the upper feed
interferes with the lift lever
after lifting the lift lever crank
securing the cover.
.
.
.
and setscrew
.
.
are not
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