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L
*REMARKS
. .....:::T..
l.
Checking the
function of the
carriage
ll.
Ghecking the
function of the
machine
body
........
1.
Kcarriagemovement
, 2.
Needle
selector mechanism (Mechanical
part)
......'.'...
ll
!.
How to adjust the K
carriage
1
.
The
K
carriage
does
not
move
smoothly .'.'..'.........
2.
The
fabric
floats
(Stitch
float) '..."...'
3.
A
lateral
stripe
is
produced every second
row
'........'...
4.
The carriage
does
not
move
when
needle
selected
B
position
5.
The end
needles
do not
come
out
lV.
How
to
adjust
the L carriage ..........'..
1.
Wrong
bilateral position
of
the
leaf
spring
'........
2.
Wrong
vertical position
of
the
leaf
spring
.........
3.
Wrong
position
of
the
feed
hook
.'......'..
4.
When
L
carriage
sinker plate
is
crooked
5.
When main cam
is
replaced
V.
Needle
selector mechanism (Mechanical part)
1. lf
some
needles
do
not
come
out
to
position
D
at
random
2.
lf
some
needles
do not
come
out
to
position
D
but
are selected
regularly
at
16
or 8
cycle
3.
K carriage movement
is
too
heavy
4. Adjustment ."..'..."......
Vt.
Checking the parts connected
with
the power
supply
..............
1
.
lnitial
live test
2.
Action
required
for
fault
symptoms detailed
in 1 "'.....'.."
2-1. The
pilot
lamp does
not
light
........'...
2-2.
Buzzer
does
not
make
a
sound
..........
2-3. The ready lamp
does
not
light .'..'."....
2-4.The
mark sensor
in not
turneci back
to
the
left
side
of
the
card
reader
and
is
not
held in this position
2-5.
The
number
"888"
flashes
on
and
off
in the
display
12
3.
Checking
the
AC
section
12
3-1. Test
the AC
main
outlet
12
3-2. Testing
the main
lead
"'....'.'...
12
3-3. Testing
the AC low
voltage
circuit
12
3-4. Checking
the AC
input
.......'.'
13
3-5. Checking
the
fuse
(F601
)
14
4.
Checking
the
DC
section
15
4-'l .
The card feeding
dial
does
not
ratchet but the
buzzer
makes
a
sound
'15
4-2. Checking
the circuits which
are
worked by
+5V
power
supply
..."
16
Vll.
Checking the
needle
selector
solenoid
18
1
.
Live test
for
the
needle
selector
solenoid
18
2.
Check
the
needle
selector
solenoids
18
3.
There
are some needles
which
are
selected
to
position
D ...'......'......"..
19
llX.
Checking the pattern
case
(except the variation
switcher)
........
,n
lX.
Checking the needle position detecting
circuit
21
1.
Check
the
needle
position detecting
circuit
.....'...
21
2. All
the
needles
are
left in
position
B
....'..'.........
21
3.
There
are
many
needles
selected
to
position
D
.".............
21
4.
lf
the position
of
the
needle
selection
slides
to
the
left or
right
21
5.
Adjust the
right
position
sensor
.........
21
6.
Adjust the
left
position
sensor
....'....
23
X.
Checking and adjustment
of the
card
reader
1.
Checking
the mark
sensor
'..'....'
2.
Exploded
diagram
for
the card
reader
3.
The
mark
sensor
does
not
move .........'.
4.
The pattern
card
is
not fed correctly
5.
When
pushing
the
CF key,
and
after
mark
sensor reads
the
card
twice,
the number
2
of
the Lwindowcomes
tothe
card
inlet
instead
of
No.1
.'.
6.
lncorrect
needle
selection
..'...".......
7.
Adjusting the
card reader
"..."."
Xl.
Checking the pattern variation switches
4
4
4
4
4
4
5
5
5
ca
ta
*a
ta
8A
ta
A't
ffi
tc
s
(a
8S
AN
4A
ta
dI
la
tct
a
8R
a
ta
*a
ta
ta
ffi
,a
tc
{t
la
&
I
ta
&
&
la
BA
<xt
aa
ea
e
A?
ta
AA
ta
IG
ta
AA
ta
qo
fa
&
fa
&
ta
ffi
&
4A
ta
a
IG
aa
&
&
8R
la
to
m
6
6
6
6
7
7
8
8
I
8
8
10
10
10
10
10
10
12
26
26
27
28
29
29
30
31
-1-
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