Juki TSH-411, TSU-471 User Manual
~~I
1-NEEDLE, BOTTOM FEED, LONG CYLINDER BED, LOCKSTITCH MACHINE FOR
EXTRA
SHU
HEAVY-WEIGHT
TILE
MATERIALS
WITH A SEMI-ROTARY
LARGE-CAPACITY
TSH-411
1-NEEDLE, TOP & BOTTOM FEED, LONG CYLINDER BED, LOCKSTITCH MACHINE
FOR
EXTRA HEAVY-WEIGHT MATERIALS WITH A SEMI-ROTARY LARGE-CAPACITY
TILE
SHU
TSU-471
ENGINEER'S MANUAL
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29338100
No.OO
PREFACE
This Engineer's Manual is written for the technical personnel who are responsible for the service and maintenance
the sewing machine. This manual describes "Adjustment Procedure", "Results
functions which are not covered by the
at
a sewing factory.
All personnel engaged
which contains important information on the maintenance
The
"Standard Adjustment" consists
the convenience
this manual once; and the latter part provides "Results
failures,
It is advisable to use "TSH-411 and TSU-471 Parts Book" together with this Engineer's Manual.
and the correcting procedures are explained for those persons who perform such adjustment for the first time.
in
repair
of
reconfirmation
of
Instruction Book intended for the maintenance personnel and sewing operators
TSH-411 and TSU-471 are required to carefully read Section 2 "Standard Adjustment"
of
TSH-411 and TSU-471.
of
two parts; the former part presents illustration and simplified explanation for
of
the required adjustment values in carrying out actual adjustment after reading
of
Improper Adjustment" in which sewing and/or mechanical
of
Improper Adjustment", and other
of
CONTENTS
1. SPECIFICATIONS ......................••.•.......•.......••••...•.•.........••......••....................... 1
ADJUSTMENTS •...•........................•.•.••••............................................•.............. 2
2.
(1) The position
(2) Needle-to-shuttle timing
(3)
Height
(4)
Clearance between the needle and the shuttle ............................................................. 4
(5)
Clearance between the needle and the shuttle driver .................................................. 4
(6) Height
(7)
Longitudinal position
(8)
Feed
(9)
Movement
1) Longitudinal position
2) The amount
3) Operating height
4) Feed amount
5) Top feed timing ....................................................................................................................................... 14
of
of
timing
of
the shuttle when
it
is recessed
most
.......••...•.........•.........••......•...•..... 2
......•.•••....•...•....•..•..•......................•............................................ 2
the needle bar ......................................•................................................•.......... 2
the feed dog •...•••.•••..•..........••......•.•...................................................•.............. 6
of
the feed dog ......•.................................................................... 8
..................................................•.................................................................... 8
of
the walking
of
of
alternating vertical movement
of
the walking foot and the presser foot ...................................................................... 12
of
the walking foot ............................................................................................................ 12
foot
(This item
the walking foot. ................................................................................................ 10
is
applied only
of
the walking foot and the presser foot ......................... 10
to
the
TSU-471.) .............
10
3. PARTS WHERE ANAEROBIC ADHESIVE (LOCK-TITE) IS USED .............. 16
4. SELECTIVE CONNECTED PARTS LIST ....................................................... 17
5.
CONSUMABLE PARTS LIST •.•••..•...........................................••..••••••••.•........ 17
6. OPTIONAL PARTS .......••.•••••••••..••.......•.•••.••......•••...••.•.....•••••.••••••......•..........• 17
PROBLEMS WITH SEWING AND CORRECTIVE MEASURES .................... 18
7.
DRAWING OF THE TABLE .....•.••.•......................................................•.••••..... 19
8.
1. SPECIFICATIONS
No.
1
Model
Name
2
3
4
5
6 Range
7
8
9 Lift
10
11
12
13
14
15
16
17
18
19 Lubrication
20 Lubricating oil
21
22 Free space for sewing
23
24
25 Belt
of
Application Tents, bags, shoes, bag handles, safety belts, etc.
Sewing speed
Needle
Range
Stitch length
of
presser foot
Stitch
adjusting method
Reverse feed stitching method
Thread take-up lever
Needle bar stroke
Alternate foot stroke
Shuttle
Feed mechanism
Top feed mechanism
Shuttle driving shaft drive method
Bobbin winder
Bed size
Motor
Item Specifications
TSH-411
machine
of
needle size
of
count
of
thread
1-needle, bottom feed,
bed,
lockstitch
heavy-weight materials with a semirotary large-capacity shuttle
Lever
Rocking method
Driving method
long cylinder 1-needle, top and bottom feed, long
machine
nut
for
Nm
11
Max.
mm
by hand
12
type (feed connecting link fulcrum moving method)
Cam type thread take-up lever
4
mm
Semi-rotary large-capacity shuttle
of
feed connecting link by feed eccentric cam
Bottom feed interlocking method
of
oscillating rock shaft by connecting rod eccentric cam
New
4P,
extra
mm
to 8 mm (TSU-471 only)
180 mm x 420 mm
253 mm x 656 mm
cylinder bed, lockstitch machine for
extra heavy-weight materials with a
semi-rotary large-capacity shuttle
800 rpm
Max.
SCHMETZ794
= 130
to
Nm = 280
#00 to #8
{normal/reverse feed)
lifter/20
By lever
56mm
Manual
Defrix Oil No. 1
Built-in type
400W clutch motor
M type V-belt
mm
by
TSU-471
pedal
-1-
2. ADJUSTMENTS
(1)
The position
(2)
Needle-to-shuttle timing
of
the shuttle when
Blade point
of
shuttle
Standard Adjustment
it
is recessed most
Condition
• When the shuttle turns counterclockwise
until
should come in contact with point A.
Needle
/ SCHMETZ 794-Nm 230
it
will
go
no
further,
the
shuttle
Lowest position
needle bar
Condition
• When the blade point
with the center
the shuttle
the
shuttle
rising from its lowest position.
(3)
Height
of
is
counterclockwise pressed
driver
of
the needle bar
of
of
the shuttle is aligned
the needle on condition that
while
\
the
[Reference value
Distance A from the upper surface
end
to
TSH-411 : 26.9
needle
bar
is
TSU-471 : 26.4
Distance from the top end
the needle eyelet
point
of
the shuttle
_j'"--"-A
f
Smm
of
the lowest position
of
the needle
to
the blade
Condition
• When the blade point
center
counterclockwise pressed
needle
bar
mm
mm
of
---~~
of
the needle
bar
is rising from its lowest position.
of
the needle bar stroke]
of
the throat plate
{ TSH-411
TSU-471 : 2.5
of
the shuttle
on
condition
to
:2
mm
mm
is
aligned with the
that
the shuttle driver while the
the
to
the lower
shuttle
is
-2-
Adjustment Procedures
Results
of
Improper Adjustment
1. Tum and stop the handwheel at the position where the shuttle
turns counterclockwise until it will go no further.
2.
Loosen the shuttle driving shaft crank screw.
3.
Turn the shuttle
point
of
the shuttle. Then, fix the shuttle .
by
hnd to adjust the position
. .
. .
.
.
of
the blade
: :
::
r~!
\.
::
!~·-·
l
~~~~iving
shaft crank screw
1. Loosen two setscrews (B) in the connecting rod eccentric
cam and setscrew (A)
2. Turn the connecting rod eccentric cam to adjust the
amount
value) Align the marker dot engraved on the connecting rod
eccentric cam with the marker
3.
Turn the handwheel toward you, and check the lifting amount
of the
(Caution) Tighten
of
the needle bar and tighten setscrew (A). (Reference
needle bar. Then, securely tighten two setscrews (B).
180
to
200 kgfcm.
in
the
screws with
the connecting rod eccentric cam.
lifting
line engraved on the main shaft.
the
tightening torque
of
0 Stitch skipping
will occur.
or
thread breakage
0 Stitch skipping or thread breakage
will occur.
Setscrew (A) in connecting rod
Connecting rod eccentric cam
Setscrews (B) in connecting .
eccentric cam
Engraved marker
rod eccentric cam Marker hne
dot
engrave~
on main shaft
~
~~~0
1. Turn and stop the handwheel at the position where the blade
point
of
the shuttle is aligned with the center
while
the needle bar is rising from its lowest position.
2.
Loosen two setscrews
3.
Move the needle bar up and down to adjust the height. Then,
fix it.
in
the needle bar connection.
0
of
the needle
0 Stitch skipping
will occur.
or
thread breakage
Setscrew in needle bar
connection
-3-
Standard Adjustment
(4)
Clearance between the needle and the shuttle
0.25
to
I.
(5)
Clearance between the needle and the shuttle driver
0.35 mm
Condition
• When the blade point
of
the needle while the needle bar is rising from its lowest
position.
(Position as shown in the illustraion
ofthe
shuttle is aligned with the center
of
item (3) on page 2)
Shuttle driver
0 to 0.05
mm
Condition
• When the convex section
with the needle guard section
of
the needle is aligned
of
the shuttle driver.
-4-
Adjustment Procedures
Results
of
Improper Adjustment
Adjust the clearance between the needle and the shuttle by
replacing the shuttle race back. The shuttle race back comes
six different thickness
To
replace the shuttle race
1.
Remove two setscrews
in
addition to the standard thickness.
back:
in
the shuttle race, remove the shuttle
in
race, and remove the shuttle.
2.
Turn the handwheel until the shuttle driver is brought to the
position where the
shuttle race back comes off as shown
in
the illustration. Then, replace the shuttle race back.
Shuttle driver
Setscrews In shuttle race
1. Loosen two setscrews, and remove the thrust collar
of
the
feed bar driving shaft.
2.
Loosen two setscrews, and move the thrust collar
of
the feed
rocker shaft.
3.
Loosen two setscrews in the shuttle driving shaft thrust collar,
setscrew in the shuttle driving shaft front bushing and screw
in
the shuttle driving shaft crank.
4. Adjust the
bushing to the
5.
After the adjustment has been completed, fix the shuttle driving
shaft thrust
clearance by moving the shuttle driving shaft front
left and right.
collar, making sure that there is no axial play
of
the shuttle driving shaft. Then, fix the shuttle driving shaft
crank.
6.
Finally, secure the respective thrust collars, making sure that
there is no
play in the feed rocker shaft and the feed bar
driving shaft.
0 If the clearance is excessively small,
needle
each other. As a
the both will result.
and hook will interfere with
result, damage
of
0 If the clearance is excessively large,
stitch skipping
will result.
or
thread breakage
0 If the clearance is excessively small
and shuttle driver presses needle,
stitch skipping or thread breakage
will result.
0 If the clearance is excessively large,
needle
each other. As a
the both will result.
and hook will interfere with
result, damage
of
Thrust collar
rocker shaft
Thrust collar
bar
driving shaft
Shuttle driving shaft
front
bushing Setscrew In shuttle driving
of
feed
Setscrew /
of
shaft
Setscrew
feed driving shaft crank
front
In
shuttle
Setscrew in shuttle driving shaft thrust collar
bushing
-5-
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