Brother BAS-340 Service Manual

SERVICE
FOR
BAS-340
MANUNL
PROGRAMMABLE WITH
CYLINDER BED <PROFILE M>
ELECTRONIC PATTERN SEWER
I
' /
\ .
CONT
ENTS
I MECHANICAL
[]]Needle
[1]
Work
@]
Feed @]Intermittent [§]Thread [§]Tension release
ITJ
Thread
I
DIS
ASSEMBLY I·. .
[]]
Machine
[1]
Machine
@]Presser mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
@]Work
ffiJ
Needle [§]Upper
[1]
Longitudinal
I]]
Traverse
~
Lower
aiD
Tension release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
[Til
Thread
DESCRIPTIONS
bar,
thread
clamp
mechanism
clamp
shaft
shaft
lifter
presser
trimmer
wiper
bar
trimmer
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
....
..
covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
head
lifter
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
feed
feed
mechanism (X axis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
mechanism
I·..
.........
take-up, lowe
mechanism
(X axis) (Y axis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
mechanism
mechanism
mechani
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
sm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
. ...........
...
. . .... . .
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mechanism (Y ax
.....
.........
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
. . . . .
..............
...
.........
r s
haft
and
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
....
. . .... . .
....
............
is)
. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
.... .
rotary
....
hook
................
.
..... ·.
.
.................
..
.....
mechanism 1
. . . . . .... 8
.......
. . .
....
...
1
9
10
11
12
19 20
IASSEMBLYJ
[]]Th
[1]
@]Needle @]Work [§]Thread tri
[§]Presser mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
ITJ
I]]
~Longitudinal
aiD
[Til
....
. . ..............
read
tension
Upper
Feed mechanism (X axis) . . Lower
Machine Machine
shaft
bar
mechanism
clamp
mmer
shaft and
head
covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
lift
er mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
rotary
feed (Y axi
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
hook
s)
.............
................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
.
....
......
..
...... . . .
. .... . . . . .
..........
...
21 21
31
41
;
I STANDARD ADJUSTMENT I·... .
ITJ
Ad
justi
ng
need
11]
Adjusting
11]
Adjusting
[!]Adjusting
liD
Adjusting [§]Adjusting []]Adjusting []]Changing
~Adjusting
[1Q]
Needle
[j]
Adjusting
[W
Adjusting
~Adjusting
[M]
Adjusting
[1§1
Adjusting
ffiD
Adjusting
mJ
Adj
usti
[ffi]
Adjusting
need gap needle shuttle movable work work thread
stop posi
home tension tension
backlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
thread solenoid
ng thread tri
work
le bar le bar l
between
clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
clamp
clamp
height
ift
receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
race
thread
knife
stroke
wiper
tion
and
position
of
timing
release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
trimmer
lever
mmer driving
height
..........
stroke
needle
guide
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
work
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
belt
cam
posit i
.... .. .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
and
shutt
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
feeding
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
position
on
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
lever posit i
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
......
le
hook
timing
. . . . . . . . . . . . . . . . . . . . . . . . . . 54
...
...............
point
. . . . . . . . . . . . . . . . . . . . 49
on
. . . . . . . . . . . . . . . . . . . 54
. . . . . . . . . . . . 43
42
44
48
52
53
I ELECTRICAL
ITJ
11] 11]
[!]Explanation
liD
[§]Optional
I TROUBLESHOOTING
ITJ
11]
CHECK
Fuses Voltage Control box
Dl P switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric I Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
AND
DIP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
measurement
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
of
connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
output
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
I·........
I PROBLEM DETERMINATION
I
SPARE
PARTS
Caution Using
termina
AND
DEVICE
for
working upon
ls
of lamp
Sv:'ITCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
.
.....................
AND
........................
feed plate
and
I·............................
....
...............
SOLUTION
marker light
............................
.... .. ..
blank
. . . . . . . . . . . . . . . . . . . . . . . . . 88
. . . . . . . . . . . . . . . . . . . . . . . . . . . 89
......
..........
..
56
61
.
63 63
74
81
I CONTROL CIRCUIT BLOCK DIAGRAM,
)
................
. ......
. . .
...
. . .
....
90
ME
CH
[I]
Needle bar,
ANICAL
thread
DESCRIPTIONS
take-up,
lower
shaft and ro
tary hook
mechanism
1)
When thread
2)
The to The needle
3)
When eccentric
4) The rock gea
5)
The oscillation the
the
motion
the
thread
the
driv
take-up
part
er@
machine pulley 0 rotates in
crank@ through
is
then
transmitted
take-up
bar
machine pulley 0 rotates in
of
r@
of
and inner
crank@.
f)
connected
the
upper
attached
the
gear @
to
rotary
the
to
with
the
shaft@.
the
crank
is
transmitted
hook
upper
the
thread needle bar
Then,
rod@
(LB) ® ofthe
the
direct
shaft@.
take-
the
direction
the
cra
osci
to
the
ion
up
lever
crank@
nk
rod@
llate
s.
lower
rotaty
of
the
arrow,
€)
throu
makes vertical movement.
of
the
arrow,
makes vertical movement.
shaft
ID
hook
mechanism also
the
gh
the
the
through
motion
needle bar crank e attached
motion
the
osc
lower
illate.
is
transmitted
is
tran
smitted via
shaft gear
®.
to
Then
the
the
-1-
~
Work
clamp
lifter
mechanism
1)
When the
2)
The vertical
0
presser
to
the
foot
pre
sse
r signa l is on,
movement
presser
{R)
f).
the air
is fir
st transmitted
feet SEL 0 and
cylinder operates.
from
SER
0 attached
work
to
clamp
the
presser
lif
ter
lever U @ attached
foot @,then
to
presser
to
the
foot
air
{L)
cyl
inde
@ and
r
-2-
@1
Feed
1)
The
2)
The and
3)
. The X-feed bracket
X-retainer@ and X-feed guide
mechanism
oscillation oscillation the
to
the X-timing
of
the
actuating gear@ attached
of
the
idle gear @
fl
(X
axis)
is
belt
@.
fixed on the X
(F)
@.
transmitted
timing
belt
to
pulse
to
timing
@ moves
motor
pulley A
right
X 0
and
is
transmitted
€)
attached
left
(in
the X direction)
to
the
idle gear@).
to
X-pulley shaft
(L)
through
9
the
Feed
1)
The oscillation shaft@.
2)
The attached
3)
TheY-feed bracket Y -feed
mechanism
presser arm assembly @ moves via the X-feed shaft support 9 and the X-feed shaft
to
guide@.
(Y
axis)
of
the actuating gear @ attached on pulse
theY-driving
shaft@).
f)
oscillates in
The
presser arm assembly@
theY
direction (forward and backward)
motor
is
also attached
Y 0
is
transmitted
to
theY-feed
with
theY-retainer@
to
the
Y-driving
€)
which are
bracket
and
fl.
the
-3-
[A]
Intermittent presser mechanism
1)
The upper shaft 0 rotates. Then, eccentrically.
2)
The intermittent
oscillation
Intermittent
of
intermittent
presser arm
presser arm
presser arm
(F)
0.
Then,
the
intermittent
(R)
the
presser
0 oscillates via
(R) 0 is
presser bar
transmitted
lifter
cam
@ attached
the
intermittent
to
the
f1 makes vertical movement.
to
the
upper shaft 0 moves
presser connecting
intermittent
rod@.
link
assembly ® via
-4-
~
Thread trimmer mechanism
1)
The thread trimming signal turns
2)
The driving lever collar transmitted
3)
The
roller @ attached
trimmer
4)
Thread trimmer rod (L) ® operates in the direction Thread trimmer connecting rod (L) @ and direction
5)
As
thread
of
the
to
the thread trimmer driving lever assembly@ attached
cam
fi.
of
the arrow via
trimmer
arrow, the movable knife
@)
operates in the direction
to
Thread trimmer rod
the
connecting rod
ON.
The
the thread trimmer driving lever
(S)
@ operates in
connecting lever
(L)
@ and the thread trimmer connecting rod @ move in the direction
G)
and the fixed
thread trimming solenoid 0 operates the solenoid lever
of
the arrow via the solenoid lever
to
the driving lever guide shaft
€)
moves
the
direction
of
the arrow via thread trimmer lever
the
thread trimmer connecting rod @ · operate in the
into
of
the arrow.
the
@.
groove
(D)
The
motion
of
the thread
@.
4D.
knife~
operate
to
trim
the thread.
@.
is
0.
-5-
[§]
Tension
release
mechanism
<When
1)
When the sewing machine clamp
2)
The
0 operate via
Then the
the
work
rise
simultaneously.
air cylinder 0 operates. Then, the
presser
clamp rises>
the
joint
bar
€)
@.
and
is
stopped, the air cylinder 0 operates. Then, the presser and the
work
The
the
end
work
of
the
clamp
clamp
work
f)
lifter
lever assembly
clamp
make vertical movement.
lifter
lever
@)
pushes
@)
and the
up
the
presser
presser
bar
bar clamp
work
lifter
rod
0.
<When
1)
The
2)
The
3)
The pin
the
thread
tension release signal turns
driving lever collar
motion
is
transmitted
of
the
presser
0 . Then the presser wire
4)
The
side
of
the tension release lever@
5)
The
end
of
the tension release shaft @
opened.
is
trimmed>
ON.
@)
operates in the direction
to
the
thread trimmer driving lever 0 attached on the driving lever guide shaft
rod lever assembly
f)
and the tension release lever@ operate in
The
thread trimming solenoid 0 operates the solenoid lever@.
of
the arrow via the solenoid lever @ roller.
€)
pushes
pushes
moves the
into
the groove
tension release shaft@. the tension release pin
of
the
the
thread trimmer driving lever
derection
tiD.
Then,
of
the arrow.
the
tension
The
e.
disc
is
-6-
l1J
Thread
wiper
mechanism
1)
After
2)
The attached on
3)
The
thread trimming,
plunger @ operates in the direction
the
thread
wiper 0 attached on the thread
the
thread
wiper
wiper
signal turns
connecting rod@ operates in
wiper
ON,
then
the
thread wiper solenoid 0 operates.
of
the
arrow. Then the thread
the
direction
crank assembly e operates.
wiper
of
the arrow.
crank assembly e
-7-
DISASSEMBLY
lii
Machine
covers
1)
Remove shaft cover
2)
Remove
3)
Remove
4)
Remove
5)
Remove
6)
Remove
7)
Remove
@.
the
screws. Then remove
the
0.
the
screw and
the
screw and
the
screw and X-feed bracket covers
the
screw and
the
screw and
the
plunger pin
the the
XY the
@of
table bellow
-feed top
co.ver the
rear cover@
assembly
base
thread
side cover
covers
0.
wiper
fl.
(R)
(R)
with
4li>
0,
belt
covers
guide shaft cover (R)@.
@)
and
(L)
and
(L)
ID.
solenoid,
the
(U)
@).
screw,
@ and
the
eye guard
(D)
@),
and
ID
the
Y -feed guide
and
the
face plate
-8-
~
Machine head
1}
Remove
NOTE:
2)
Tilt
3}
Remove
4)
Loosen
5)
Loosen caution!
6}
Return the machine
7)
Remove
8)
Remove
9)
Shift the machine head from the power table
NOTE:
the
bolt 0 for
The
bolt
for
fixing
after removing it.
the
machine.
the belt
the set screw
the set screw
the the cords.
The
machine head weighs
four
Be
€)
from
bolts@
fixing the machine head. the
machine head
sure
to
lock
the
the
pulley
9.
f)
of
the
GS
spring
@)
and remove the head support shaft
to
its original position. Lower gently.
of
the
head hinge.
70
kg
is
used
only when shipping. Normally keep
head support shaft@ in the head support lever@).
@)
to
80
and remove
to
the
kg.
GS
spring shaft (U}@.
((i)
working table.
from
the
head support lever (f).
it
in another place
Use
-9-
~
Presser
mechanism
[For
1)
2)
3)
4)
5)
air
separation presser] Remove Remove Remove
Take
Remove
the
screws 0 and
the
bolt
the
screw«!>
the
auxiliary plate sheet@
the
screw@ and
€)
I
work
I and
@I
the
work
damp
{SER)@)
the
feed
plate@
off
from
the
needle sub plate
damp@
I presser
the
and
from
theY-feed
needle sub plate
4D.
foot
the
{L)
needle
tj
I
work
bracket
6).
0.
clamp
m.
{SEL)@
and presser
foot
{R)@).
[For
air
presser]
1)
Remove
2)
Repeat steps 3
the
bolt
to 5 in
01
the
the
work
[For
damp
{UNL) assembly
air
separation presser] mentioned above.
@I
the
presser plate
-10-
{UNL)
assembly@.
[j] Work
clamp
lifter
mechanism
1)
Loosen machine top.
2)
Loosen attached intermittent
3)
Push
the
(The
the
nut
the
bolt
to
the
the
presser bar
presser
bar
presser bar
Stop
ring~
0 and remove
of
intermittent
arm and
presser arm (F)@ and the
tiD
bush
ID.
lifter
f),
....
-
the
adjust screw
presser arm
the
stop ring up from the portion the
cushion @
(R)
@ from the machine
of
the presser bar
intermittent
of
the
and
the
presser
@,the
link assembly@.
spring guide
lifter
body
with
bar clamp@
needle mechanism, then remove
@)
and the spring 0 from
top
and remove the stud screw @
f)
from the face plate side.
will
come
off
as
a unit.)
the
Remove
it
from
-11-
~
Needle bar
mechanism
Thread
take-up
crank
1} Remove the oil cap 0 and needle bar thread guide
2}
Loosen
3}
Remove (At
4}
Remove
5}
Re~ove
, thread take-up lever
(The thread take-up assembly
the
screw
the
this time,
the the oil cap
of
the needle bar clamp@ and remove
needle bar clamp@
the
slide block@)
oil
cap
6 and loosen
([!).
Loosen
0.
will
from
the
thread take-up lever
will
come off.}
the
set screw@. Then, remove
the
screw and set screw
come off.}
(A}@.
the
of
needle
bare
from
0.
the
thread take-up support stud@).
the
thread take-up crank
the
machine top.
6)
and remove
the
-12-
III
Up_per
shaft mechanism
1}
Remove
2)
Remove
3)
Remove
4)
Loosen
5)
Remove synchronizer@ and
6)
Attach the pulley@
7)
Loosen set collar
the screw 0 and the thread trimming solenoid@. the
screw@)
the screw 0 and the upper part
the set screw G and remove the pulley@.
the screw
each
screw or set screw
0
the
1
w.
8)
Loosen (The thread take-up crank presser come
the set screw 0
cam
4ID,
the bobbin winder pulley
off
from the upper shaft respectively.)
and the wick support
@)
the
1
the
to
the
intermittent
of
synchronizer support ® 1 the synchronizer support packing
synchronizer packing@.
upper shaft
of
the thread take-up crank
presser
upper shaft
@,the
0.
of
the crank rod assembly@.
ID.
@,the
cam
4ID
I
the
bobbin
bush
(R)
fD
and remove the upper shaft
connecting rod partition plate (@,the
@I
the
thread trimmer
winder
connecting rod partition plate
pulley @
cam
W and upper shaft
and
the thread trimmer
ID
with
the
set
collar 0 I
pulley.
the
intermittent
bush
(R)
tD
the
1
(@ 1 the
cam
fD
will
-13-
[1]
Longitudinal feed mechanism (Y axis) (1)
1}
Loosen
2}
Remove
3}
Remove the screw 0 and
4}
Loosen drivi ng guide shaft
5}
Remove driving shaft fJ.
the set screw 0 and remove
the bolt@) and
the bolts
the
bolt
the
X-feed shaft@.
the
presser arm assembly
theY
-axis home position
@)
of
theY-driving
ED
from the X-feed shaft support
0,
theY-driving P motor
shaft
0.
base
@.
f)
andY-driving guide shaft
tiD.
bracket
ID
with
the
pulse
ED
motor
respectively.
(Y}
assembly
Remove
®,and
theY­theY-
-14-
11]
Longitudinal feed
mechanism
{Y
axis)
{2)
' .
I
I
1)
2)
Remove unit. Remove
the
bolt @ of
the screws@
theY-feed
of
theY-stopper
guide
0,
0.
Remove
then theY-feed guide
theY-retainer
@)
and
theY-feed
0,
Y-retainer@), Y-feed bracket
bracket 9
9.
as
a
-15-
00
Traverse
feed
mechanism
(X
axis)
(1)
r
!
1)
Remove
2}
Remove X-timing
3}
Remove the screws ®
feed bracket e.
the
bolts@)
the
screw 0
belt@). (The machine head should be standing.}
of
X-feed guides
of
the
X-feed bracket e I
of
the
X-stopper
(F)
0 and
@,then
(R)
@.
the
belt
holder @ and
X-feed guides
(F)
the
0 and
timing
(R}
@
1
belt
the
spacer
X-retainer
fJ
from
ID
and X-
the
-16-
II)
Traverse
feed
mechanism
(X
axis)
(2)
1}
2}
3)
4)
5)
Remove Loosen
the
direction Loosen Loosen Remove
the bolt.
the setscrew@) the set
the set
X-pulley shaft
Loosen
of
the arrow. (Timing pulley (B)@, the screw@) screw®
X-pulley
the bolts
oftiming
and remove the idle gear of
timing
(L)
® in the direction
of
X-pulley
pulley(B} @·and remove
pulley (A)@.
of
base
(R)
base
(R} 0 so
two
that
it
the
stop ring. RemoveX-pulleyshaft(R} 0 in
micro bearings 0
6.
the
arrow, then X-timing belt
moves
right
will
and left.
come off.)
ID.
-17-
~
Lower shaft
mechanism
Large shuttle hook
.set.
claw
[Lower shaft]
1)
Remove
2)
Remove
3)
Remove remove
4) Tilt
5)
Loosen
6)
Loosen (The set
[Rock
1)
Loosen
2)
Loosen using a screwdriver.
3)
Return
the stud screw the
the bobbin
large shuttle hook
the
machine in the direction
the
the
collar@
gear shaft]
the set screw @ and remove the stop ring
the
the
screws
bolt@
screw @
set screw
machine
and remove the driver«!> and the stop ring (I).
will
0,
the
spring wastier@ and
the
9 and 0 and the needle plate@.
case
and
lift
the large shuttle hook set claw in the direction
f)
and inner rotary hook (LB)@.
of
the
arrow.
of
the
set collar @ and remove
come
off.)
@.
tiD
of
the
set collar 0 and remove the rock gear shaft ® from the machine rear
(The
set collar 0 and the rock gear W
to
its original position.
large shuttle hook cover@.
the
lower shaft assembly
will
come off.)
(D
of
the arrow. Then
from
the
machine rear.
-18-
1m!
Tension release
--~r=:r-~
~~~~--:
I J
. .
II
1) 2} 3}
4}
5)
6) 7} 8}
Remove Loosen Remove bar Remove Remove Loosen Remove Remove
the
the
stop ring 0
the
set screw e and remove
the
screws @ and @
wire
assembly«!>.
two
urethan tubes (R)@
the
stud screw@,
two
screws@ and remove
the
set screw@,
the
screw
tension release bracket@ and remove
of
from
the
of
the
then
the
the
thread tension assembly@,
the
tension release bracket 0
presser bar
the
wire
from
presser bar
the
air cylinder
wire@
presser rod lever assembly 0
holder ® and cord holder NK-3N
M5-05 elbows ill.
lifter
and
rod
0.
from
the
tension release bracket 0
-·~.
the
tension rei
ID
from
the
the
pin
@>
the
outside
·-~..
ease
wire
from
the
arm.
fi.
joint@.
and
the
tension rei
of
the
arm,
with
the
..
__
_.)
shaft@).
Then, remove
ease
bar
press
the
presser bar
:
the
fD.
shaft
wire@.
presser
part
of
-19-
Ill]
Thread trimmer
1}
Remove
2)
Remove lever
3)
Loosen Remove (The thread trimmer driving lever
4)
Tilt
5)
Remove
6)
~emove
7)
Remove
8)
Remove (L)
the stop rings@ from the driving lever guide shaft
the stud screw, and
~ssembly@).
the set
the driving lever guide shaft 0 from
the
machine in
the stud screw, then the spring@ from thread the stud screw, then thread the screw
assembly
screws
ID
and thread trimmer rod
of
the
direction
of
the connecting lever support
0.
the
thread trimmer rod
the
driving lever collar 0 and the thread trimmer driving lever assembly
the
assembly@),
of
the arrow.
the
threac;j
trimmer
trimmer
trimmer
(L} @ as
the
lever (U)@.
rod (L)@ from thread trimmer lever
(S}
assembly 0 from the thread trimmer driving
machine rear.
driving lever collar 0 and the spring
rod
(S}
assembly 0 from thread
.@.
Then remove the thread
a unit.
fl
trimmer
(U)
tiD.
trimmer
will
lever
connecting rod
@).
come off.}
(D)@).
-20-
ASSEMBLY
[1]
Thread tension
-··-
~__:_--,!
---~
Setser~
---~--~
.:-----::::::··- ' :
' _j
·-~--
.
1··
.
,.
..
__
_)
l'l~l»>
I
.
1) Attach
Attach insert
2)
Insert
3)
Attach
4) Insert
5)
Attach
6)
Fit
screws@.
7) Attach
place
the
the
presser bar lifter rod@)
the
presser
them
from
the
shaft
the
air cylinder«!)
the
pin@
two
urethan
presser
the
tension release
the
set
bar
the
top
part
of
of
the
tubes
bar
wire assembly 0 in
screw
in
the
to
the
joint
0 with
wire assembly 0
of
the
arm.
the
thread
to
presser rod lever assembly@) into
(R)
bar
groove
tension bracket assembly@ into
the
arm
([;}to M5-05
@!>,the
of
with
the
the
pin
thread
to
the
the
two
elbows@. cord holder
ID
and
tension assembly
the
presser rod lever assembly
screws
NK-3N
the
stud screw 0
ID.
the
arm hole,
0 and
thread
tension assembly 0
0,
the
then
-21-.
and
€)
arm, and
then
the
wire holder
tighten
the
nut@.
with
tighten
tighten
it.
the
the
tiD.
to
stop ring
the
screw@).
set
screw®.
Then
tighten
the
machine body,
fl.
Then
the
lZJ
Upper shaft mechanism (1)
1)
Insert the upper shaft 0 upper shaft intermittent
through upper shaft
NOTE:
For
intermittent
bush
presser connecting rod
assembly, apply grease
(M)
bush
presser
into
the arm through the rear. Insert the thread trimmer
@).
Pass
the bobbin
(F)@)
in
that
to
the
connecting rod
@,the
order. ·
thread
@.
winder
set collar
trimmer
pulley
fj
cam
0,
the
and the connecting rod partition plate @
@,the
intermittent
intermittent
presser
cam @ and
presser
cam
cam
attach
0,
it
the
to
0 and the
,
...
2)
Set
upper shaft
arm. Then secure upper shaft
bush
(R)
{{!)
with
its oil hole facing up
bush
(R)
{{!)with
the
and
screw.
insert
it
until the stop ring
-22-
is
in contact
with
the
~
Upper shaft
mechanism
(2)
3)
Align
the
thread tapered with its screw@ and
4)
Adjust up crank no end play lightly rotates. Then check tighten
5)
Adjust bobbin winder pulley 0 so space screw
bore
the
upper shaft 0 with
Q)
the
screw
the
intermittent presser cam 0
between
of
the
take-up crank
of
the
and
the
and
check
of
them,
bobbin winder pulley
Q)
with
the
upper shaft 0 and attach it
set
screw@.
the
set collar 6 so
that
the
upper shaft 0
the
screw flat and
the
set
collar
6.
that
there
then
tighten
thread
that
there
is
0.5
the
take-
is
and
mm
set
0.
O.Smm
Marker line
6)
Align
thethread
flat
of
the
screw.
7)
Align
the
crank rod assembly
line
and
attach
upper shaft 0 with
trimmer cam @ with
upper shaft
the
0,
crank rod assembly
the
screw.
then
CD
the
tighten
on
the
CD
screw
the
set
marker
to
the
-23-
~
Upper shaft
8)
Place synchronizer
NOTE:
mechanism
the synchronizer packing
support®
The
synchronizer
on
ID
the
should
(3)
@,the
arm
synchronizer
with
the
screws
be
turned in the direction
ID,
the synchronizer support packing @ and the
0 and
@.
of
the arrow.
9)
Attach the pulley @ squarely.
NOTE:
1
0)
The
second
flat
of
Attach the wick support
the upper shaft.
to
the
screw hole
fll)
to
upper shaft 0 and check the screw flat, then tighten the set screw down
of
the
pulley @ in
the arm
with
the
the screw
rotation direction should
tD.
-24-
be
attached
to
the screw
@1
Needle
bar
mechanism
1)
Insert
the
thread
the
thread screw flat there
is
2)
Insert
take-up
crank
there tighten
3)
Apply grease the
slide block 0
Set
the
facing backwards and its
groove
take-up
and
tighten
no
end
play
the
needle
assembly @
e.
Check
is
no
looseness
the
set
screws.
to
the
slide block 0
of
the
arm.
take-up
bar
the
is
attached.
support
assembly
the
or
no slack.
crank @ into
and
screw flat
between
groove
with
oil hole up, into
stud 0 into
@,
set
screw so
the
thread and
them,
of
the
arm
the
chamfered side
check
the
thread
take-up
adjust
to
which
the
that
that
then
the
4}
Place
the
shaft
into
the
thread
block
0.
5}
Pass
the
needle
the
the
needle
bush
screw.
top
time,
bar@.}
pulley
(D)
needle
bar@
from its clamp@.
(At this needle
6)
Turn
lowest position.
of
bar
facing front, secure set
7)
Secure
needle
part
of
take-up
bar @
and
insert it into
put
the
to
set
Align
bar
@
@.
Then
the
bar
thread
with
the
the
needle
lever
through
oil
the
needle
the
with
with
needle
set
screw.
guide
bar
f)
and
the
the
cap
on
bar @ at
second highest line
the
edge
the
bar
@ with
(A}
clamp
the
machine
needle
top
of
of
needle
cut
section
(I!)
to
@)
slide
bar
the
its
the
the
8)
Put
the
oil caps
machine head.
-25-
ID
and @ in
the
holes
of
the
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