Yamato UT Spares — parts catalog
- Page 1 (cover): This is the cover page for the Yamato Instruction Manual, Parts List for the UT series electric thread trimming devices, including models VES2700-8 and VES3700-8.
- Page 2 (unknown): This page contains a watermark and a website address at the bottom.
- Page 3 (toc): This page contains the table of contents for the manual, listing sections such as Proper operation, Wiring, Installing synchronizer, and Adjusting thread trimming mechanism, along with their corresponding page numbers.
- Page 4 (toc): This page contains the table of contents for the manual, listing sections such as 'Adjusting tension release mechanism', 'Adjusting wiper', 'Presser foot lifter mechanism', and 'ST2 device' with corresponding page numbers.
- Page 5 (text): This page details the operating procedure for the UT-2 device, including steps for placing fabric, releasing the pedal, and heel-backing the pedal, along with a diagram illustrating the sewing process and a note on presser foot movement.
- Page 6 (text): This page details the operating procedure for the UT-4/ST device, including steps for placing fabric, starting sewing, and releasing the pedal, along with a note on presser foot movement.
- Page 7 (text): This page details the adjustment and connection of the detector switch, including diagrams and step-by-step instructions.
- Page 8 (diagram): This page contains wiring diagrams for connecting solenoids and motors, labeled as Fig. 5 and Fig. 6, along with a note about avoiding short circuits.
- Page 9 (text): This page contains instructions for installing a synchronizer on a sewing machine, including a caution note and numbered steps with references to diagrams.
- Page 10 (text): This page details the adjustment of the thread trimming mechanism, including installing the plunger rod, adjusting the solenoid stroke, and solenoid return spring, with accompanying diagrams.
- Page 11 (text): This page contains instructions for positioning the lower knife and relating the upper and lower knives, with accompanying diagrams.
- Page 12 (text): This page details the adjustment procedures for the clamp spring and clamp spring presser, as well as the position of the upper knife carrier, with accompanying diagrams.
- Page 13 (text): This page details the adjustment of the lower knife and needle, including steps to loosen nuts, move the lower knife and connecting block, and tighten nuts, with accompanying diagrams illustrating the process.
- Page 14 (text): This page details the adjustment of the lower knife tip and the lower knife carrier guide (upper) with diagrams and step-by-step instructions.
- Page 15 (text): This page describes the relation between the lower knife and needle thread or looper thread, with diagrams illustrating the process.
- Page 16 (text): This page details the adjustment procedures for the tension release mechanism, including the tension release block, tension release connecting plate, and thread pull-off lever, with accompanying diagrams.
- Page 17 (diagram): This page contains a diagram illustrating the looper thread pull-off mechanism, labeled as Figure 27, with accompanying text describing its use with stretchable thread.
- Page 18 (text): This page contains instructions for adjusting the tension disc separator and the thread pull-off hook unit, along with a diagram illustrating these components.
- Page 19 (text): This page contains instructions for adjusting the wiper and needle, and the distance of the wiper, along with diagrams illustrating these adjustments.
- Page 20 (text): This page details the standard positioning for solenoid support, solenoid lever, and wiper, including specific measurements and visual references in figures 32, 33, and 34.
- Page 21 (text): This page describes the presser foot lifter mechanism, including a warning and step-by-step instructions for adjustment, accompanied by a diagram.
- Page 22 (text): This page details the procedure for positioning the movable trimming knife on the ST2 device, including warnings and notes on adjustments.
- Page 23 (text): This page describes the engagement between movable and fixed trimming knives, providing instructions on how to adjust the gap between them using screws and levers, illustrated with diagrams.
- Page 24 (text): This page contains instructions for adjusting the stroke of the movable trimming knife and the pressure of the thread clamp spring, with accompanying diagrams.
- Page 25 (text): This page contains instructions for adjusting the spring and the thread pull-off hook unit, along with notes on thread feeding and using stretchable thread.
- Page 26 (unknown): This page contains a watermark and a website address at the bottom. There is no other discernible content.
- Page 27 (cover): This is the cover page for the illustrated spare parts list for VES/UT.
- Page 28 (diagram): This page displays a diagram of the UT DEVICE(1) and extra parts, with numbered components and their corresponding part numbers and descriptions.
- Page 29 (parts_list): This page lists parts for the UT Device (1), including part numbers, descriptions, and quantities required. It also includes a device classification table.
- Page 30 (diagram): This page displays a diagram of the UT Device (2) with various components numbered for identification.
- Page 31 (parts_list): This page lists parts for UT DEVICE (2), including trimming solenoids, switches, connecting blocks, and related hardware, with part numbers, descriptions, and quantities required.
- Page 32 (diagram): This page displays a diagram of the UT Device (3) with numbered parts, including screws, levers, and plates, for an industrial sewing machine.
- Page 33 (parts_list): This page lists parts for UT DEVICE (3) with reference numbers, part numbers, descriptions, and quantities required.
- Page 34 (diagram): This page displays a diagram of the UT DEVICE (3) with numbered parts and their corresponding references.
- Page 35 (parts_list): This page lists parts for UT DEVICE(3) with part numbers, descriptions, and quantities required. It includes items from reference number 38 to 57.
- Page 36 (diagram): This page displays a diagram of the UT Device, showing various components labeled with reference numbers and part numbers.
- Page 37 (parts_list): This page lists parts for UT DEVICE(4) with reference numbers, part numbers, descriptions, and quantities required.
- Page 38 (cover): This is the cover page for a Yamato Sewing Machine Mfg. Co., Ltd. parts catalog, identified by P/N 9730173, edited in June 2006.
Page 1 — Instruction Manual
Parts List
Yamato
Instruction Manual
Parts List
ELECTRIC UNDER THREAD TRIMMING DEVICE
ELECTRIC TOP COVER THREAD TRIMMING DEVICE
UT
UT-2, UT-4/ST2
VES2700-8 class
VES3700-8 class
Thank you for having purchased UT device.
Before using your UT device, please read the instruction
manual and understand the contents well.
After reading the instruction manual, please keep it in a
location where it is easily accessible to the operator.
YAMATO SEWING MACHINE MFG. CO.,LTD.
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Page 2
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Page 3 — CONTENTS
CONTENTS
1. Proper operation
1
1.1 Operating procedure for UT-2 device
1
1.2 Operating procedure for UT-4/ST device
2
2. Wiring
3
2.1 Detector switch
3
2.1.1 Adjusting detector switch
3
2.1.2 Connecting detector switch
4
2.2 Connecting solenoid
5
3. Installing synchronizer
6
4. Adjusting thread trimming mechanism
6
4.1 Installing plunger rod
6
4.2 Stroke of solenoid
6
4.3 Solenoid return spring
7
4.4 Position of lower knife
7
4.5 Relation between upper and lower knives
8
4.6 Positions of clamp spring and clamp spring presser
8
4.7 Pressure of clamp spring
8
4.8 Position of upper knife carrier
9
4.9 Relation between lower knife and needle
10
4.10 Position of lower knife tip
10
4.11 Lower knife carrier guide (upper)
11
4.12 Relation between lower knife and needle thread or looper thread
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Page 4 — CONTENTS
CONTENTS
5. Adjusting tension release mechanism
12
5.1 Tension release block
12
5.2 Tension release connecting plate
12
5.3 Thread pull-off lever
12
5.4 Looper thread pull-off
13
5.5 Tension disc seprator
14
5.6 Thread pull-off hook unit
14
6. Adjusting wiper
15
6.1 Wiper and needles
15
6.2 Distance of wiper
15
6.3 Wiper and thread clamp rubber
15
6.4 Standard position of solenoid support
16
6.5 Standard position of solenoid lever
16
6.6 Standard position of wiper
16
7. Presser foot lifter mechanism
17
8. ST2 device
18
8.1 Position of movable trimming knife
18
8.2 Engagement between movable and fixed trimming knives
19
8.3 Adjusting stroke of movable trimming knife
20
8.4 Pressure of thread clamp spring
20
8.5 Adjusting spring
21
8.6 Adjusting thread pull-off hook unit
21
Attention
The description in this instruction manual is subject to change for improvements of the commodity without
notice.
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Page 5 — 1.Proper operation
1.Proper operation
CAUTION
Be sure to place a fabric under the presser foot when operating.
1.1 Operating procedure for UT-2 device
The motor can be selected 1 position or 2 position.
The operating procedure for 1 position and 2 posi-
tion is mentioned below.
(1) Place a fabric under the presser foot and toe
down the pedal. (Fig. 1 ①)
The machine starts sewing.
(2) Release the pedal. (Fig. 1 ②)
The needle stops at the lowest point.
(Skip this procedure when 1 position is
selected.)
(3) Heel back the pedal. (Fig. 1 ③)
The needle rises and stops at the highest
point.
The trimming knife mechanism operates to cut
the needle and the looper threads under the
stitch plate. The looper thread is held with
the clamp spring.
The wiper operates to hold the needle thread
with the clamp spring.
And then, the presser foot is raised.
(4) Release the pedal. (Fig. 1 ②)
The presser foot is lowered.
NOTE
The presser foot can be moved up and down by heeling
back the pedal to the positions ② and ③ until the pedal
is toed down to the position ①.
Fig. 1
start
② neutral
③
thread trimming
presser foot lifting
1
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VES/UT
Page 6 — 1.2 Operating procedure for UT-4/ST device
1.Proper operation
1.2 Operating procedure for UT-4/ST device
The motor can be selected 1 position or 2 position.
The operating procedure for 1 position and 2 posi-
tion is mentioned below.
(1) Place a fabric under the presser foot and toe
down the pedal. (Fig. 2 ①)
The machine starts sewing.
(2) Release the pedal. (Fig. 2 ②)
The needle stops at the lowest point.
(Skip this procedure when 1 position is
selected.)
(3) Heel back the pedal. (Fig. 2 ③)
The needle rises and stops at the highest
point.
The trimming knife mechanism operates to cut
the needle and the looper threads under the
stitch plate. The looper thread is held with
the clamp spring.
ST2 device operates to cut and hold the top
cover thread.
And then, the presser foot is raised.
(4) Release the pedal. (Fig. 2 ②)
The presser foot is lowered.
NOTE
The presser foot can be moved up and down by heeling
back the pedal to the positions ② and ③ until the pedal
is toed down to the position ①.
Fig. 2
start
neutral
thread trimming
presser foot lifting
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Page 7 — 2.Wiring
2.Wiring
2.1 Detector switch
2.1.1 Adjusting detector switch
The detector switch works so that the machine does
not run until the trimming knife returns to its
original position.
(1) Loosen the screws ① and ②.
(2) Adjust the positions of the detector switch③
and the switch guide ④ as below.
Make the switch turn ON when the trimming
knife returns to its original position.
Make the switch turn OFF when the front of
the upper knife touches the looper with mov-
ing the air cylinder by hand.
(3) Tighten the screws ① and ② securely.
Fig. 3
2.1.2 Connecting detector switch
(1) Connect the cords of the detector switch to the
3P-connector with the numbers as below.
black cord : ①
white cord : ③
red cord : ②
(2) Connect the 3P-connector of the detector switch
to that of the intermediate cable.
Fig. 4
black
white
red
①
③
②
3
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Page 8 — 2.2 Connecting solenoid
2.Wiring
2.2 Connecting solenoid
N O T E
Never short out black and red, or black and green.
If shorted, it can cause the damage to the internal circuit.
wiper and
ST2 solenoid
trimming solenoid
red
green
black
motor
Fig. 5
black
red
green
motor
Fig. 6
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Page 9 — 3.Installing synchronizer
3.Installing synchronizer
CAUTION
Unplug the solenoids for trimming and ST2 device from
the control box for the motor.
If not, the parts may be touched and broken.
(1) Install the synchronizer① on the machine pul-
ley and tighten the screws② slightly.
(2) Set the synchronizer positioning pin③ into
the groove of the synchronizer① and tighten
the screw④ securely.
(3) Turn the motor switch "ON".
(4) Toe down the pedal to sew two or three stitches.
(5) Heel back the pedal. Then the needle stops a
certain position.
(6) Loosen the screws②. Rotate the pulley clock-
wise to align the line of the handwheel⑤ with
the hole⑥ of the machine arm while keeping the
positions of the screws②
tate the shaft of the synchronizer).
NOTES
1. The needle bar is at the highest point at (6).
2. Use this device when the needle bar is at the position
0.5 mm below its highest point by further rotating the
pulley.
(7) Toe down the pedal to sew a few stitches. Check
that the needle bar stops at the position 0.5
mm below its highest point.
After installing the synchronizer, plug the sole-
noids for trimming and ST2 device in the prescribed
positions.
Fig. 7
Fig. 8
5
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Page 10 — 4.Adjusting thread trimming mechanism
4.Adjusting thread trimming mechanism
WARNING
ALWAYS turn the motor switch OFF and check that the
motor has been already stopped.
4.1 Installing plunger rod
Set the plunger connecting rod ① and the plunger
② to the solenoid return shaft and the trimming
solenoid shaft with the nuts ③ and ④ so that the
solenoids shift smoothly right and left.
Fig. 9
4.2 Stroke of solenoid
The stroke of the solenoid is 15 mm.
Remove the solenoid dust-proof cover ⑤ and loosen
the nuts ⑥ to adjust it.
CAUTION
Readjust the thread trimming mechanism after changing
the stroke of the solenoid.
4.3 Solenoid return spring
The standard position of the collar ⑦ is 25 mm
apart from the end of trimming solenoid support ⑧
when the plunger of the solenoid is at the left
(the solenoid dose not operate).
CAUTION
Supply oil in the oiling hole (red) of the trimming solenoid
support ⑧ once a week.
Fig. 10
Fig. 11
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Page 11 — 4.Adjusting thread trimming mechanism
4.Adjusting thread trimming mechanism
4.4 Position of lower knife
CAUTION
Operate the trimming knife mechanism manually only
when the needle is at the highest point. If not, the parts
may be touched and broken.
(1) Set the part 2 on the lower knife 1 parallel
to the part 4 on the lower knife carrier 3.
(2) Tighten the screws 5 securely.
Fig. 12
4.5 Relation between upper and lower knives
(1) Loosen the screws 10.
(2) Adjust the needle thread hook 6 of the lower
knife to pass at the corner 8 of the upper
knife 7.
(3) Move the upper knife 7 right or left to make
the engagement between the looper thread hook
9 and the upper knife 7 to 0.5 mm when the
lower knife is at the extreme right.
(4) Tighten the screws 10 securely.
Fig. 13
7
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Page 12 — 4.Adjusting thread trimming mechanism
4.Adjusting thread trimming mechanism
4.6 Positions of clamp spring and clamp spring presser
(1) Loosen the screws ②.
(2) Set the part ④ of the lower knife ① even with
the back of the clamp spring ③ when the lower
knife moves to the right.
(3) Tighten the screws ② securely.
(4) Loosen the screws ⑥.
(5) Set the back of the clamp spring pressure ⑤
even with the backs of the lower knife ① and
the clamp spring ③.
(6) Make the distance between the left tip of the
clamp spring pressure ⑤ and the upper knife
tip to 1 mm.
(7) Tighten the screws ⑥ securely.
Fig. 14
4.7 Pressure of clamp spring
The looper thread is caught and held with the clamp
spring ③ after cutting it.
Turn the adjusting screw ⑦ to adjust the pressure.
• To increase the pressure, turn it clockwise.
• To decrease the pressure, turn it counter-
clockwise.
Keep the pressure to a minimum for holding the
looper thread.
Fig. 15
4.8 Position of upper knife carrier
The upper knife carrier ⑨ slides to the left si-
multaneously with the lower knife carrier ⑧.
And it stops by touching the upper knife carrier
stop ⑩.
The upper knife slides under the stitch plate.
The upper knife carrier stop positions with the
screws ⑪ automatically.
Fig. 16
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Page 13 — 4.9 Relation between lower knife and needle
4.Adjusting thread trimming mechanism
4.9 Relation between lower knife and needle
(1) Loosen the nuts ②.
(2) Move the lower knife ① at the extreme left.
(3) Move the connecting block ③ right or left to
make the distance between the needle thread
hook ④ and the left needle to 3.5 - 4.5 mm.
(4) Tighten the nuts ② securely.
Fig. 17
Fig. 18
3.5 - 4.5 mm
9
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Page 14 — 4.Adjusting thread trimming mechanism
4.Adjusting thread trimming mechanism
4.10 Position of lower knife tip
(1) Move the lower knife
to the left.
(2) When the distance between the tip
of the lower knife
and the right end of the looper
is 12 mm, center the tip
with the flat part of the looper.
(3) Loosen the screw
and turn the knife guide lever ring(right)
to adjust the tip
.
To move the tip backward, turn the ring
clockwise.
To move the tip forward, turn the ring
counterclockwise.
(4) Tighten the screw
securely.
Fig. 19
Fig. 20
4.11 Lower knife carrier guide (upper)
The upper knife carrier slides to the left simul-
taneously with the lower knife carrier.
And it stops by touching the upper knife carrier
stop.
(1) Loosen the screws
(2) Make the clearance between the lower knife
carrier
and the lower knife carrier guide
(upper)
to 0.05 - 0.1 mm when the upper knife
carrier stops.
(3) Tighten the screws
securely.
Fig. 21
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Page 15 — 4.12 Relation between lower knife and needle thread or looper thread
4.Adjusting thread trimming mechanism
4.12 Relation between lower knife and needle thread or looper thread
After all adjustings, recheck following points before
sewing.
★ The lower knife① should pass through the needle
thread loops ② and ③, and the hook ④ should
pass in front of the looper thread.
Fig. 22
★ The needle and the looper threads are pulled
with the hooks ④ and ⑤ to the right when the
lower knife ① returns. Then the upper knife
cuts the threads.
Fig. 23
11
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Page 16 — 5.Adjusting tension release mechanism
5.Adjusting tension release mechanism
WARNING
ALWAYS turn the motor switch OFF and check that the
motor has been already stopped.
5.1 Tension release block
(1) Loosen the screw ③.
(2) Make the clearance between the trimming sole-
noid support ① and the tension release block
② to 1 mm when the rod of the trimming sole-
noid is at the left (the trimming mechanism does
not operate).
(3) Tighten the screw ③ securely.
Fig. 24
5.2 Tension release connecting plate
Adjust it referring to Figs. 24 and 25.
(1) Loosen the screw ③.
(2) Adjust the position of the tension release
block ② so that the tension release connecting
plate ④ is in the center between the screw
head ⑤ and the tension release lever ⑥.
(3) Tighten the screw ③ securely.
Fig. 25
5.3 Thread pull-off lever
(1) Loosen the screw ⑧ of the tension release le-
ver on the rear of the machine frame.
(2) Raise the thread pull-off lever ⑦ at the high-
est point.
(3) Tighten the screw ⑧ securely.
Fig. 26
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Page 17 — 5.4 Looper thread pull-off
5.Adjusting tension release mechanism
5.4 Looper thread pull-off
When using stretchable thread like woolly for the
looper, use the looper thread pull-off ① and the
looper thread pull-off eylet ② if required.
Fig. 27
13
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Page 18 — 5.Adjusting tension release mechanism
5.Adjusting tension release mechanism
5.5 Tension disc separator
(1) Loosen the screw② of the tension release adjusting eccentric①.
(2) Position the tension disc separator③ by turning the tension release adjusting eccentric①
so that the thread tension discs can open as fast as possible.
To open it fast, lower the tension disc separator③.
(3) Loosen the screw⑦ to set the top of the tension pull-off bar④ 35 mm extruded from that
of the thread pull-off eyelet⑤.
(4) Fix the tension pull-off bar④ to the thread pull-off bar holder⑥ with the screw⑦.
35 mm
5.6 Thread pull-off hook unit
Adjust the position of the thread pull-off hook
unit⑨ without remaining of the needle thread too
much on the fabric surface at the beginning of
sewing.
Loosen the screws⑧ to adjust them.
To decrease the thread pull-off amount, raise
the thread pull-off hook unit⑨.
To increase the thread pull-off amount, lower
the unit⑨.
CAUTION
1. If the thread pull-off amount of the hook unit⑨ is too
little, the stitch cannot formed at the beginning of
sewing.
2. Use the thread pull-off hook unit⑩ only when using
woolly thread for the looper. When not using, raise it
at the position the thread does not pull-off.
Fig. 28
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Page 19 — 6.Adjusting wiper
6.Adjusting wiper
WARNING
ALWAYS turn the motor switch OFF and check that the
motor has been already stopped.
6.1 Wiper and needles
The shaft of the solenoid is out 0.9 mm forward
while turning when the solenoid operates.
Turn the solenoid lever ⑨ downward while pulling
toward the operator to adjust it.
(1) Raise the needles at the heighest points.
(2) Loosen the screw ③ so that the hook ② of the
wiper ① passes 2.5 - 3.0 mm from front of the
center of the needle. (Figs. 29 and 30)
(3) Loosen the screw ④ to pass the wiper ① 1.0 mm
below the left needle. (Figs. 29 and 30)
Fig. 29
6.2 Distance of wiper
Adjust the distance from the center of the needle
bar to the hook ② to 6.0 mm when the wiper ① is at
the extreme left.
Loosen the screw ⑤ of the wiper holder to adjust
it. (Figs. 29 and 30)
6.3 Wiper and thread clamp rubber
Loosen the screw ⑦ to hold the needle thread slightly
with the thread clamp rubber ⑥ and the wiper ①
when the wiper ① returns. (Fig. 31)
Fig. 30
Fig. 31
15
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Page 20 — 6.Adjusting wiper
6.Adjusting wiper
6.4 Standard position of solenoid support
Make the clearance between the machine arm and the
solenoid support① to 3 mm.
Fig. 32
6.5 Standard position of solenoid lever
Make the clearance between the solenoid support①
and the solenoid lever② to 2.5 mm. Also set the
solenoid lever② horizontally when it returns.
Fig. 33
6.6 Standard position of wiper
Make the distance between the wiper holder③ and
the end of the wiper ④.
Fig. 34
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Page 21 — 7.Presser foot lifter mechanism
7.Presser foot lifter mechanism
WARNING
ALWAYS turn the motor switch OFF and check that the motor has been already stopped.
(1) Fix the plunger ② with the nut ①.
(2) Adjust the presser foot to raise by 7 mm with the chain ③ when the plunger ② moves in the
direction X (the solenoid operates).
(3) Adjust the chain with slack slightly when the plunger ② moves in the direction Y.
Fig. 35
17
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Page 22 — 8.1 Position of movable trimming knife
8.ST2 device
ALWAYS turn the motor switch OFF and check that the motor has been already stopped.
8.1 Position of movable trimming knife
(1) Align the line of the handwheel ① with the
hole ② of the machine arm (the needle is at the
highest point).
(2) Insert a pair of tweezers through the hole ④
to set the movable trimming knife ③ at the
lowest point.
CAUTION
Never touch the movable trimming knife ③ to the presser
foot, the left needle ⑤, and the spreader ⑥ when lowering.
If touched them, loosen the screws ⑦ and ⑧ to adjust it.
(3) Loosen the screws ⑧ to cross the movable trim-
ming knife ③ tip over the top cover thread
when the movable trimming knife ③ is at the
lowest point.
NOTE
Adjust the tip ⑨ of the movable trimming knife ③ 5.5 -
6.0 mm above the top of the stitch plate as standard.
(4) After that, tighten the screws ⑦, ⑧, and ⑩
securely.
(5) Check the position of the movable trimming
knife ③ while moving it up and down.
Fig. 36
Fig. 37
presser
foot
stitch plate
Fig. 38
5.5-
6.0 mm
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Page 23 — 8.2 Engagement between movable and fixed trimming knives
8.ST2 device
8.2 Engagement between movable and fixed trimming knives
The engagement between the movable trimming knife
① and the fixed trimming knife② is set to 0 - 0.5
mm in Fig. 96 at shipment.
(1) Loosen the screw③ of the solenoid lever ④.
(2) Engage the fixed trimming knife ② with the
movable trimming knife ① to 0 - 0.5 mm when
the knife ① is inmost.
(3) Tighten the screw ③ securely.
Fig. 39
from the back side
Fig. 40
19
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Page 24 — 8.3 Adjusting stroke of movable trimming knife
8.4 Pressure of thread clamp spring
8.ST2 device
8.3 Adjusting stroke of movable trimming knife
The stroke from the tip of the movable trimming
knife to the fixed trimming knife is set to
19.5 mm at shipment.
(1) Loosen the nut .
(2) Apply the adjusting screw tip to the sole-
noid lever when the stroke is 19.5 mm and
the movable trimming knife is out fully.
(3) Tighten the nut securely.
Fig. 41
from the back side
19.5 mm
8.4 Pressure of thread clamp spring
Keep the pressure to a minimum for holding the
threads.
(1) Loosen the nut .
(2) Adjust the pressure with the adjusting screw
so that the thread clamp spring and the mov-
able trimming knife hold the threads cut
with the knives.
To increase the pressure, tighten the adjust-
ing screw .
(3) Tighten the nut securely.
Fig. 42
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Page 25 — 8.5 Adjusting spring
8.6 Adjusting thread pull-off hook unit
8.ST2 device
8.5 Adjusting spring
Loosen the screw
and move the spring hanger
to
adjust it.
from the back side
sping
increase
decrease
Fig. 43
8.6 Adjusting thread pull-off hook unit
To decrease the thread pull-off amount, raise
the thread pull-off hook unit
To increase the thread pull-off amount, lower it
3
NOTES
1. The feed of the thread should be as much as possible.
If not enough, the top cover thread cannot be held
after cutting.
2. When using stretchable thread like woolly, thread
through the top cover thread eyelet ④.
Fig. 44
21
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Page 26
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jintex.in
Page 27 — ILLUSTRATED SPARE PARTS LIST
ILLUSTRATED
SPARE PARTS LIST
VES/UT
jintex.in
Page 28
1
UT DEVICE(1)
5
4
3
2
6
9
8
7
10
11
EXTRA PARTS
29
30
13
14
15
18
19
20
21
17
20
21
20
21
22
22
21
23
24
25
26
16
27
28
VES/UT
jintex.in
Page 29 — UT DEVICE(1)
UT DEVICE(1) 1
Ref.No Parts No. Description 品 名 Amt. Req
1 3100526 Tension Release Block 糸緩メブロック 1
2 007610 Screw(M4-0.7 × 10) 止ネジ 1
3 3100525 Tension Release Connecting Plate 糸緩メ連結板 1
4 110009 Screw(M4-0.7 × 8) 止ネジ 2
5 170009 Screw(M4-0.7 × 4) 止ネジ 1
6 3100536 Terminal Holder, Complete Set 端子台(組) 1
7 3100535 Terminal Holder Support 端子台取付板 1
8 0063586 Terminal Holder 端子台 1
9 009985 Screw(M2.5-0.45 × 10) 止ネジ 2
10 110012 Screw(M4-0.7 × 5) 止ネジ 4
11 0063612 Cord Clamp(4N- φ 6.8) コードクランプ 1
12
13 009736 Screw(M4-0.7 × 6) 止ネジ 1
14 0022836 Synchronizer Positioning Pin ポジショナピン 1
15 0022837 Synchronizer Cushion ポジショナピンクッション 1
16 3100529 Thread Pull-off Eyelet 糸緩メ糸道 1
17 3500530 Thread Pull-off Bar 糸緩メ棒 1
18 0063076 Swing-proof Spring 糸緩メ棒防振バネ 1
19 0077179 Retaining Ring ストップリング 1
20 3500514 Thread Pull-off Hook Unit 糸緩メフック(組) 3
21 003657 Screw(M4-0.7 × 3) 止ネジ 5
22 3500516 Thread Pull-off Bar Holder 糸緩メフック(組) 2
23 0094396 Thread Pull-off Bar Holder 糸緩メ棒連結片 1
24 007006 Screw(9/64-40 × 7) 止ネジ 1
25 0033024 Retaining Ring ストップリング 1
26 0090856 Tension Disc Eyelet 糸調子皿糸道 1
27 3500360 Collar(9 × 15 × 7.5mm) カラー 1
28 160001 Screw(M4-0.7 × 4) 止ネジ 2
29 3101202 Connector Supporting Plate 取付板 1
30 110013 Screw(M4-0.7 × 8) 止ネジ 2
Device classification 装置の種類
Mark Wiper Foot Lifter
Trimming Solenoid Solenoid
記号 糸切リソレノイド ワイパソレノイド 押工場ゲノレノイド
UT-2 0011802 3169920 3100571
UT-4 X O X ・ ・ ・ Assembled---有り
jintex.in VES/UT
Page 30
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UT DEVICE(2)
1
3
7
8
16
15
14
36
12
10
19
13
20
21
22
23
24
25
26
9
28
29
31
30
33
35
33
32
34
33
VES/UT
jintex.in
Page 31 — UT DEVICE (2)
UT DEVICE (2)
Ref.No
Parts No.
Description
品 名
Amt. Req
1
0011802
Trimming Solenoid, Complete Set
糸切りリソレノイド(組)
1
2
0011801
Trimming Solenoid
糸切りリソレノイド
1
3
0063579
Solenoid Dust-proof Cover
ソレノイド防塵カバー
2
4
000140
Nut
ナット
2
5
000598
Washer
ワッシャ
1
6
000597
Anti-shock Rubber
緩衝ゴム
1
7
0077410
Retaining Ring
ストップリング
2
8
005650
Screw(M5-0.8 × 14)
止ネジ
3
9
3100524
Trimming Solenoid Support
ソレノイド取付台
1
10
120013
Screw(M6-1 × 15)
止ネジ
2
11
0063610
Switch, Complete Set
スイッチ(組)
1
12
0063607
Switch Support
スイッチ取付板
1
13
110004
Screw(M3.5-0.6 × 8)
止ネジ
1
14
0063606
Switch
スイッチ
1
15
0063609
Switch Cover
スイッチカバー
1
16
009984
Screw(M2.3-0.4 × 10)
止ネジ
2
17
0063608
Switch Guide
スイッチガイド
1
18
110002
Screw(M3-0.5 × 5)
止ネジ
2
19
0036133
Cord Clamp(5N- φ 8.4)
コードクランプ
1
20
000148
Nut
ナット
2
21
0095388
Plunger Connecting Rod
プランジャロッド
1
22
001457
Packing Screw(1/64-40 × 3.3)
詰ネジ
2
23
0095389
Plunger Connecting Rod Pin
プランジャロッドピン
1
24
3100520
Plunger
プランジャ
1
25
160003
Screw(M5-0.8 × 5)
止ネジ
2
26
3100532
Solenoid Return Shaft
ソレノイド戻シヤフト
1
27
0093491
Collar(8 × 16 × 8mm)
カラー
1
28
009508
Screw(11/64-40 × 7.5)
止ネジ
1
29
0095336
Solenoid Return Spring
ソレノイド戻シバネ
1
30
180006
Screwed Pin(M5-0.8 × 6)
ピンネジ
1
31
3100523
Connecting Block(Right) Support Spring
連結ブロック支エバネ
1
32
3120157
Connecting Block(Right)
連結ブロック(右)
1
33
100002
Nut
ナット
3
34
190029
Connecting Rod(M5-0.8 × 40)
連結棒
1
35
3100538
Connecting Block(Left)
連結ブロック(左)
1
36
110062
Screw(M3.5-0.6 × 8)
止ネジ
2
37
000014
Washer
ワッシャ
2
VES/UT
Page 32
3
UT DEVICE (3)
VES/UT
jintex.in
Page 33 — UT DEVICE(3)
UT DEVICE(3) UT 装置(3) 3 Ref.No Parts No. Description 品 名 Amt. Req 1 3151006 Looper Thread Pull-off Eyelet ルーパ糸緩メ糸道 1 2 3151001 Upper Knife Carrier Support Spring 上メス台支エバネ 1 3 110030 Screw(M3-0.5 × 2.6) 止ネジ 3 4 3151000 Lower Knife Carrier Guide 下メス台ガイド 1 5 110026 Screw(M3-0.6 × 6) 止ネジ 2 6 3151015 Trimming Mechanism, C. Set UT機構(組) 1 7 3100506 Lower Knife Driving Lever 下メス駆動レバー 1 8 170005 Screw(M4-0.7 × 6) 止ネジ 2 9 3151004 Lower Knife Carrier 下メス台 1 10 3151020 Looper Thread Pull-off ルーパ糸緩メ糸片 1 11 3100513 Lower Knife 下メス 1 12 3100560 Supplementary Spring 上メス台補助バネ 1 13 3500503 Upper Knife Carrier 上メス台 1 14 190006 Screw(M4-0.7 × 4) 止ネジ 2 15 3100512 Upper Knife 上メス 1 16 110024 Screw(M2-0.4 × 6) 止ネジ 2 17 110025 Screw(M2-0.4 × 10) 止ネジ 1 18 110023 Screw(M2-0.4 × 3.5) 止ネジ 1 19 3100507 Upper Knife Guide 上メスガイド 1 20 3100508 Thread Clamp Spring 糸挟ミバネ 1 21 3100509 Clamp Spring Pressure 糸挟ミバネ押シ 1 22 3100510 Clamp Spring Pressure Holder 糸挟ミバネ押シ取付板 1 23 130005 Screw(M2-0.4 × 4) 止ネジ 2 24 3100511 Clamp Spring Pressure Adjusting Piece 糸挟ミバネ押シ調節片 1 25 100006 Nut ナット 2 26 3100503 Knife Guide Lever メスガイドレバー 2 27 3100504 Knife Guide Lever Right(Left) メスガイドレバーリング(左) 1 28 130003 Screw(M4-0.7 × 7.3) 止ネジ 2 29 3100505 Knife Guide Lever Ring(Right) メスガイドレバーリング(右) 1 30 3100515 Upper Knife Carrier Spring 上メス台バネ 1 31 170006 Screw(M4-0.7 × 2.5) 止ネジ 1 32 3100579 Crank Chamber Cover ナカカバー 1 33 3500510 Upper Knife Carrier Stop 上メス台ストッパ 1 34 130021 Screw(M4-0.7 × 5) 止ネジ 1 35 130004 Screw(M4-0.7 × 12) 止ネジ 1 36 110091 Screw(M3-0.5 × 3) 止ネジ 1 37 000002 Spring Washer スプリングワッシャ 1 Ref. No. 38 to 57 See the following page. Jjintex.in VES/UT
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UT DEVICE (3)
1
36
2
37
5
4
6
8
7
3
12
A
B
25
28
29
27
B
26
31
30
16
18
17
16
15
19
20
23
13
14
14
32
33
34
35
38
40
39
48
41
47
43
45
44
53
52
51
50
49
56
57
VES/UT
jintex.in
Page 35 — UT DEVICE(3)
UT DEVICE(3) 3
Ref.No Parts No. Description Amt. Req
38 3169924 Wiper Mechanism, C. Set ワイパ装置(組) 1
39 3161015 Solenoid Bracket ソレノイド台 1
40 110016 Screw(M4-0.7 × 15) 止ネジ 2
41 1062035 Wiper Solenoid ワイパソレノイド 1
42 000012 Nut ナット 2
43 3161025 Solenoid Lever ソレノイドレバー 1
44 140014 Screw(M4-0.7 × 8) 止ネジ 1
45 007779 Retaining Ring ストップリング 1
46 3161020 Solenoid Lever Pin ソレノイドレバーピン 1
47 140010 Screw(M4-0.7 × 6) 止ネジ 1
48 3161019 Wiper Bar Guide ワイパ棒ガイド 1
49 3161022 Wiper Bar ワイパ棒 1
50 3161028 Wiper ワイパ 1
51 3161027 Wiper Holder ワイパホルダ 1
52 240009 Screw(1/8-44 × 4.8) 止ネジ 1
53 3161029 Thread Clamp Rubber 糸挟ミゴム 1
54 110002 Screw(M3-0.5 × 5) 止ネジ 1
55 2100265 Spacer スペーサ 1
56 3161026 Solenoid Cover ソレノイドカバー 1
57 110012 Screw(M4-0.7 × 5) 止ネジ 2
VES/UT
Page 36 — UT DEVICE(4)
4
UT DEVICE (4)
1
3
10
11
12
8
2
21
6
5
7
4
5
7
9
19
18
16
13
14
15
17
15
17
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jintex.in
Page 37 — UT DEVICE(4)
UT DEVICE(4) 4
Ref.No Parts No. Description 品 名 Amt. Req
1 3100571 Presser Foot Lifter Solenoid, C. Set 押エ場ゲツレノイド(組) 1
2 3100570 Solenoid Support ソレノイド台 1
3 000070 Hanging Nut 吊りナット 4
4 000162 Washer ワッシャ 8
5 000016 Nut ナット 12
6 009865 Hanging Bolt(M8-1.25 × 220) 吊りボルト 4
7 000676 Spring Washer スプリングワッシャ 8
8 0011733 Presser Foot Lifter Solenoid 押エ場ゲツレノイド 1
9 009970 Screw(M6-1 × 20) 止ネジ 4
10 000011 Nut ナット 1
11 000528 Washer ワッシャ 1
12 000588 Anti-shock Rubber 緩衝ゴム 2
13 000306 Nut ナット 1
14 0064045 Lifter Connecting Rod 押エ場ゲ連結棒 1
15 0064046 Lifter Connecting Link 押エ場ゲリンク 2
16 0035301 Connecting Link Pin 押エ場ゲリンクピン 2
17 0033024 Retaining Ring ストップリング 2
18 0064047 Presser Foot Lifter Solenoid Lever 押エ場ゲツレノイドレバー 1
19 009853 Screw(11/64-40 × 6.5) 止ネジ 1
20 0032786 Solenoid Lever Pin ソレノイドレバーピン 1
21 0037912 Chain 鎖 1
VES/UT
Page 38
Yamato
ヤマトミシン製造株式会社
YAMATO SEWING MACHINE MFG. CO., LTD.
P/N 9730173 (P/I)
No.1 Edited in 2006.6
(VES/UT)
Printed in Japan 2006.7.1H Y
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