-
---t-
~
,
f*ft~B91iiJ~(0025)
I The timing
of
needle guard (Fig.25)
0025
Fig.25
i*tt~l'f.J[l'IJ~.
Ell
(0025)
r:p~
-
~~trmEA.~tt
!ftltl:fl~->f
ffi'iffiHJcJ:E.
The timing
of
the needle guard
dep
ends on the condition
of
the plane on the rock shaft
of
the looper when no. I scr
ew
has been
scr
ewe
d into this rock shaft.
=+=.
f*ff·~l'f9{!L
it(0026)
/Position
of
needle guard(Fig.26)
0026
Fig.26
•~•tt~m•.~-#~ailli~~~m~l'f.J#~&&M
2iH1!:tt~,
~f.JJJJtfi!ZiffiJ~¥1
J~.M
&rnii5Ei*#~ffiEm,
mff'.{(0026
)
~
1,
u:n
CD~
an
PI
Jn:
rrifn!Ti.
11!1/E1*#~lt:Jm?9J1*fi
-
~Z.
I
illl'f.J:}C~(:!m0026),P)f;if-,
5JtJ
L#
~~BJ~
J~Y!JO
.l
-0.2mm,
~~:JJtJLi!i~IJot7f-~~Mff:9E1:HJLfi
-
.
Oscillating the needle guard to make the n
ee
dl
e tip contact with
needle gauge s
li
ghtly.
It
is
recommended
that the height a
djustment
shall
not
fall
within the area
of
the left counter needle guard. The adjustment can
be made by loosening screw
G) and
~.
The relation between left
counter needle guard and the counter needle guard is as represented
in
Fig 26; the cl
ea
ra
nc
e from the needle fa
ll
s within the
ra
nge
of
0.1
to 0
.2
mm
.
Not
e t
hat
the forced cl
amp
of
th
e n
ee
dle shall be prohibit
ed
when
th
e machine is
in
motio
n.
=
-t
-
:::::
.
J(E~fr~8~(0027)
I Looper thread take-up cam (Fig.27)
0027
Fig.27
$;;
~
:J:T
~
8 ~
l'f.J
t'r
:J
I'J
lll (
00
2
7)
lfr
jf- ,
tHf
1£
-Ill
f.JJ
;!;i:
~
,
tH~8~->JZWffiHtwmii->JZrrif~
7
tl'f.J:9EJHY!7
t
8°
-
20°,
mff'.{t~
trB*fi
ifnl
~
.
tt
m~!E
~w••·
~-~~~-~~-~:
$;;~Mfi~8~1'f.J~-A~ill~,
tt~~~~
*A.f
ij;~-#
B'-J
~J;:f\
9='
.
Its position can be seen as shown in Fig.27 when the needle
bar
is at the top dead
ce
ntre,the
pl
anes
of
the cam and the steel wire are
in p
ar
allelism;
th
e project
in
g part
of
the cam can s
li
ghtly
ri
se at the
ang
le
of
18 to
20
d
egrees.
first l
oosen
screw
B,
and
th
en
make
adjustment, finally tighten the scr
ew
fitrnly. Pay close attrntion to the
following; the nee
dle
tip shall
en
tirely
co
me into
th
e thread l
oop
of
the looper when the bobbin thread rejecting from the projecting
part
of
the cam.
-10-
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