SINGER UT-1 User Manual
Instruction Manual
Singer
UT-1 Device
ST-1 Device
for
755U Machine
756U Machine
INSTRUCTION MANUAL
(DRAFT)
SINGER@
UT-l/ST-l DEVICE
FOR
755U/756U MACHINE
®A registered trademark of The Singer Company Limited
Copyright©! 997 The Singer Company Limited
AÌÌ Rights Reserved Throughout The World
OONTENTTS
PAGE
1. Application
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1-1 Threading and testing —...........................-
1-2 Installment and adjustment of the synchronizer
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1- 3 Electricity and connection of its power control cycle
2. Maintenance and adjustment
2- 1 Lower moval knife and fixed knife
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----2-2 Setting the height of the lower fixed knife carrier guide
2-3 Setting the position of thread trimmer -------2-4 Double-checking
3. Tension release equipment
4. Adjustment for spreader trimmer
4-1 The explanation for trimming operation
4- 2 Maintenance and adjustment
5. Illustrated parts list
5- 1 UT-1 Underbed trimmer components
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2
3
5
5
6
7
8
9
10
10
5-2 ST-1 Spreader thread trimmer components 5-3 Compressed air components
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14
16
5-4 Thread tension and motor components ..................................... 18
5-5 Air piping diagram
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20
1. APPUCATION :
1-1 THREADING AND TESTING
THE THREADING OF THIS SEWING MACHINE IS THE SAME AS CT
SERIES, PLEASE REFER TO THE USER GUIDE OF CT SERIES
INTERLOCK MACHINE.
PLEASE BE AWARE THAT THE WRONG THREADING IS THE MAIN
REASON TO CAUSE THE SKIP STITCH PROBLEM. IF THE UTA-1
DEVICE IS NOT ASSEMBLY ON THE MACHINE BY OUR FACTORY BLTT
PURCHASE SEPARATELY PLEASE ADJUST AND TEST THE MACHINE
TO REACH THE BEST SEWING EFFECTS ACCORDING TO THE
FABRICS AND .THREAD YOU ARE USING FIRST AND THEN,
ASSEMBLE THE UTA-1 DEVICE AFTERWARDS.
[ DO NOT OPERATE THE UTA-1 DEVICE IF THERE IS NO FABRICS
UNDER THE PRESSER FOOT.
1. START THE SEWING MACHINE BY PUSHING THE PADEL
FORWARD®
2. WHEN PEDAL BACK TO NEUTRAL POSITION © THE SEWING
MACHINE STOP AND AT THIS MOMENT. YOU CAN SET THE
NEEDLE TO ITS UPPER SET STOP POSITION OR LOWER SET STOP
POSITION.
3. WHEN PUSHING THE PEDAL BACKWARD ©THE NEEDLE REACH
ITS UPPER SET STOP POSITION AND STOP THEN TRIMMING KNIFE
START ITS OPERATION TO CUT THE LOOPER THREAD AND
NEEDLE THREADS FIRST THEN CUT THE SPREADER THREAD NEXT
AND PRESSER FOOT UFT UP AUTOMATICALLY.
4. TAKE OFF THE SEWING FABRICS AND PREPARE FOR THE NEXT
SEWING OPERATION.
BEFORE YOU PUSH THE PEDAL FORWARD. YOU CAN PUSH THE
PEDAL BACKWARD AND LIFT UP THE PRESSER FOOT IN ORDER
TO ADJUST THE FABRICS POSITION AT ANY TIME.
1-2 INSTALLMENT AND ADJUSTMENT OF THE SYNCHRONIZER :
TOPPER
©SET SCREW
(pSYNCH^2^-
(§)SEP..
^ SCREW
©5ET SCREW
gSET scre'S^ pulley
1. INSTALL SYNCHRONIZER©INTO BELT PULLEYQ)AND TIGHTEN THE
SET SCREW© LIGHTLY.
2. INSERT ONE END OF STOPPER®INTO THE HOLE ON THE MACHINE
AND INSERT THE OTHER END OF STOPPER INTO THE GROOVE OF
SYNCHRONIZER AND THEN TIGHTEN THE SET SCREW®
3. CONNECT THE POWER OF MOTOR ( PLEASE DO NOT CONNECT THE
ELECTRIC POWER OF TRIMMING KNIFE YET)
4. PUSH THE PEDAL AND START THE SEWING MACHINE AND THEN
PUSH THE PEDAL BACKWARD TO STOP THE MACHINE. BY THIS
TIME, THE SEWING MACHINE WILL STOP AT CERTAIN POSITION
AUTOMATICALLY.
5. OBSERVE THE "P" SET MARK FROM HANDWHEEL AND WHEN THE
MACHINE STOPPED. THE "P" SET MARK FROM HANDWHEEL SHOULD
MATCH THE SET MARK ON THE SEWING MACHINE AND AT THIS
MOMENT, THE NEEDLE SHOULD REACH ITS UPPERMOST DEAD POINT.
WHILE ADJUSTING, LOOSEN THE SET SCREW® TURNING THE BELT
PULLEY® THEN TIGHTEN THE SET SCREW LIGHTLY, REPEAT SUCH
PRECEDURE SEVERAL TIMES TO MAKE SURE THE "P’ SET MARK
FROM HANDWHEEL CAN MATCH EVEN WITH THE SET MARK OF THE
MACHINE BODY.
6. AFTER TIGHTEN THE SET SCREW, PLEASE DOUBLE CHECK THE
RELATED POSITION ONCE MORE TO MAKE SURE THESE TWO SET
MARKS ARE MATCHING EVENLY.
1-3 ELECTRICITY AND CONNECTIUN ui- iia rwwcn uwmnwk
CYCLE.
GENERAL CONNECTIDN DIAGRAM OF AC SERVE MDTCR
<
SPREADER TRIMMER
UNDER BED TRIMMER
PRESSER FDDT <
SAFTY SWITCH <
l.RED
2. BLACK
3.RED ^
4. BUCK
5. BLACK
6. BLACK
7. BLACK
8. YELLOW
/
-----
^
© ©
e ©
6 © 3. WHITE
© ©
© 9
© é
© ©
© ©
^
J
l.RED
2. DEEP BLUE
4. GRAY
5. ORANGE
6. GREEN
7. YELLOW
8. BLACK
*>
*>
s
>
2. MAINTENANCE AND ADJUSTMENT
2-1 LOWER MOVABLE KNIFE AND FIXED KNIFE
IF YOU ARE RESHARPING THE KNIVES, OR CHANGING THE KNIVES, OR
INCASE, TAKING OFF THE TRIMMING KNIFE SET IF NECESSARY AND
YOU WANT TO RE-INSTALL THE TRIMMING KNIFE SET BACK, PLEASE
REFER TO FOLLOWING ITEMS AND ADJUSTING THE RELATED PARTS
INVOLVED.
@ PLEASE MAKE SURE THE POWER IS -OFF*
LOOSENINq-THE COMPRESSED AIR JOINT
AND ADJUSTING THE POSITION OF
LOWER MOVABLE KNIFE IN ORDER
TO MAKE THE MOVABLE KNIFE CAN
BE SLICED EASILY IN THE LOWER
MOVABLE KNIFE GUIDE AND CAN NOT
INTERFERENCE WITH THE KNIFE GUIDE.
WHEN MOVABLE KNIFE MOVED TO ITS
LEFTEST DEAD POINT THERE SHOULD
HAVE A INTERVAL OF 1m.m. BETWEEN
SET SCREW A AND FIXED KNIFE AND
CAN NOT COLLIDE WITH EACH OTHER.
YOU CAN ADJUST THE INTERNAL BY
LOOSEN THE SET SCREW B AND MAKE
SURE THE EDGE OF MOVABLE KNIFE
MATCH EVENLY WITH THE EDGE OF
FIXED KNIFE.
WHEN MOVABLE KNFE MOVED TO ITS
RIGHTEST DEAD POINT, THE HOOK
BALDE OF MOVABLE KNIFE SHOULD
BE RETREAT Im.m. INSIDE FROM
THE BLADE OF FIXED .KNIFE.
MATCH \a
EVEN
HOOK SLADE''MOVABLE
KNIFE
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