I. Stitch
drops
Cause
'
I.
Wrong bilateral position
of
the
leaf spring
Fit-
42
2. Wrong vertical position
of
the
leaf spring
Flg.43
3. Wrong position
of
the feed hook
liij@
!Wll
Amounta
of
feed• Amounts
of
feecb
pt
llrpr
aet
arna.Uer
Fig.
44
HOW
TO ADJUST L CARRIAGE
·.
~
·,
: .
..
..
~·
...
:
~
..
Fl~
46
- 47-
How
to
adjsut
I .I Remove l Carria
ge
cover and
loo
sen right and left clamp-
ing
nut
s for the le
af
spring.
1.2
By
referring to f igure 42, place the leaf spring
at
a distance
of
0.
5-1
millimeter inward from the cross section
of
the
pia~
earn
B on· the basis of
th
e plate cam 8 and fasten
with
cl
amping
scr
ews
.
2.1
By
referring
to
fi
gure 43,
adjsu~t
the
tip
of
the
l
eaf
sp
oing
so
as
to
be
bigbtened
to
the
same
level
as
that
of
the plate
cam
B.
2.2
Al
though you may
use
a pincers or pliell in making such
..
ad
justments,
be
careful
not
to cause
:such
tools
to
~r
ook
the
leaf
sp
ring locally .
3.1
•
The feed hook is
fixed
with the feed
hook
clamping screw
on
the
si
de
of
the sinker plate.
3.2 L
oo.en
the feed
hoo
k clamping.
scnw
and move it inward
and
,;.
ounts of feeds
wUI
ge
t smaller
but
move it outward
aqp
amounts
of
feeds
will
ge
l larger.
33
By referring
to
Fi
gU
re
4S
, adjust the feed
hook
so
as
to
let
a
pp
made in a moment the crossed two latch needles
come
off
f
rom
the feed h
oo
k come below
0.2-lmlllim
eter.
' t
..
•
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