CLINTON INDUSTRIES 199 Manuel utilisateur

TRIM AND WIPER

ASSEMBLY

FOLDER OPENER

PULLOFF

ASSEMBLY

NIPPER

NEEDLE

COOLER

40-0252-01

SERVICE MANUAL

ML199-4

CLINTON'S

MODEL 199

UNDERBED TRIMMER

FOR

UNION SPECIAL 63900

ML199-5

TABLE OF CONTENTS

THREAD TRIMMER SECTION

SECTION I GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . 1

A. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B. APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

C. TRIMMER COMPONENTS . . . . . . . . . . . . . . . . . . . 1

SECTION II TRIMMER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . 2

A. PULLOFF ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . 2

B. TENSION RELEASE AND PULLOFF ASSEMBLY. . 2

C. CUTTER AND WIPER ASSEMBLY . . . . . . . . . . . . . 2

D. SOLENOID AIR VALVE CONTROL UNIT. . . . . . . . . 2

E. NEEDLE COOLER . . . . . . . . . . . . . . . . . . . . . . . . . 2

F. FOLDER OPENER . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SECTION III PRELIMINARY SETTINGS . . . . . . . . . . . . . . . . . . . . . . . 3

SECTION IV TRIMMER ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . 3

A. TENSION RELEASE AND PULLOFF ASSEMBLY . . 3

B. CUTTER AND WIPER ASSEMBLY . . . . . . . . . . . . . 3

C. SOLENOID AIR VALVE CONTROL UNIT . . . . . . . . 3

D. FOOTLIFTER ASSEMBLY . . . . . . . . . . . . . . . . . . . 3

E. NEEDLE COOLER . . . . . . . . . . . . . . . . . . . . . . . . . 4

F. FOLDER THREAD WIPER . . . . . . . . . . . . . . . . . . . 4

SECTION V TRIMMER SEQUENCE OF OPERATION . . . . . . . . . . . 4

A. UNDERBED TRIMMER . . . . . . . . . . . . . . . . . . . . . . 4

B. TENSION RELEASE . . . . . . . . . . . . . . . . . . . . . . . . 4

C. NEEDLE THREAD WIPER . . . . . . . . . . . . . . . . . . . 4

SECTION VI TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 5

SECTION VII PARTS DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

ML199-6

I. GENERAL INFORMATION

A. INTRODUCTION

The air Operated Underbed Trimmer contains a trimming system that cuts both the

needle and bobbin threads simultaneously. A movable and a stationary blade, mounted

on the throat plate are used in combination to pick up and cut the threads.

Solid state electronics are used to sense the position of the needle and to trigger the

trimming mechanism at the proper time as well as to control footlifting and backtacking

operations.

B. APPLICATION

The underbed Trimmer/Positioner enables the operator to automatically control the

position of the needle in or out of the work, thereby eliminating the need for hand position-

ing. In addition, the top and bottom threads are automatically cut beneath the throat

plate after positioning. This eliminates the need for hand trimming.

C. SYSTEM COMPONENTS

The trimmer components, which can be either pre-installed on the sewing machine head

and factory tested, or field installed, include:

1. Standard Components

a. Pulloff Assembly

b. Tension Release and Pulloff Assembly

c. Thread Cutter and Wiper Air Cylinder Assembly

d. Solenoid Air Valve Control Unit

2. Optional Components

e. Foot Lifter

f. NeedleCooler

g. Folder Opener

D. TUBING

1/8” O.D. X 1/16” I.D. 3/16” O.D. X 3/32” I.D. 1/4” O.D. X 1/8” I.D.

MATERIAL VINIL MATERIAL POLYURETHANE MATERIAL POLYURETHANE

30-1134-01 CLEAR 30-1540-01 CLEAR 30-2102-01CLEAR

-02 YELLOW -02 YELLOW -03 RED

-03 RED -03 RED

-04 BLACK -04 BLACK

-05 BLUE -05 BLUE

-06 GREEN -06 GREEN

-07 ORANGE -07 ORANGE

-08 WHITE -08 WHITE

-09 GRAY -09 GRAY

-10 BROWN -10 BROWN

ML199-7

II. TRIMMER INSTALLATION

A. PULLOFF ASSEMBLY

Remove the machine face plate and mount the Pulloff assembly as shown in INS-2377.

B. TENSION RELEASE AND PULLOFF ASSEMBLY

1. Remove from the machine the thread tension discs assembly and tension release

pin.

2. Drill and Tap mounting holes using appropriate drill fixture supplied. Refer to machine

drilling instructions shown in drawing INS-2355.

3. Mount tension release assembly and the thread tension discs assembly to the sewing

machine as shown in drawing INS-2353.

C. CUTTER AND WIPER ASSEMBLY

1. Remove from the machine throat plate and feed shaft clamp plate.

2. Rework clamp plate as shown in drawing INS-1630 and fasten to the machine.

3. Fasten cutter and wiper cylinder assembly to sewing machine bed.

4. Mount new throat plate assembly on the machine with original hook basket retaining

finger.

D. SOLENOID AIR VALVE CONTROL UNIT

1. Mount solenoid valve assembly in back of the machine bed as shown in INS-2379.

2. Mount foot lifter air cylinder assembly as shown in INS-2379.

E. NEEDLE COOLER

1. Fasten needle cooler tube to presser foot and roller housing bracket.

2. Mount treadle air valve assembly supplied between the motor and treadle arm.

F. FOLDER OPENER

1. Mount folder opener air cylinder assembly on bed of machine.

2. Assemble the folder opener assembly to the machine cylinder arm.

- 2 -

ML199-8

III. PRELIMINARY SETTINGS

NOTE: Do not connect the air supply at this time.

1. Set the machine head in the table and install "V" belt.

2. Time sewing machine to normal sewing conditions.

3. Connect all air lines as shown in circuit diagram drawing INS-2339.

4. Connect all electrical cables to the main control box.

5. Thread the sewing machine and sew on material being used on the operation.

IV. TRIMMER ADJUSTMENTS

A. TENSION RELEASE

Adjust puller for sufficient thread tail left on needle to start sewing on the next cycle.

B. CUTTER AND WIPER ASSEMBLY

1. Loosen the 10-32 nut on the cylinder shaft and adjust the knife travel so that the

cutting edge is about 1/16" past the cutting edge of the stationary blade.

2. Adjust the wiper to pass between the needle and the presser foot without striking

either. By loosening the two nuts on the cylinder shaft, the assembly will rotate

around the screw to position the wire hook. Bending may be necessary for proper

thread pickup.

3. With the power and air off, manually stimulate the trimmer sequence of operation

cycle several times to insure that the proper adjustments have been made.

C. SOLENOID AIR VALVE CONTROL UNIT

Turn power and air on. Set regulator to read 60 PSI and adjust the flow control of the

trim air cylinder to reduce bobbin spin.

D. FOOTLIFTER ASSEMBLY

Adjust footlifter cylinder for required amount of lift. Readjustment of footlift linkage may

be necessary.

- 3 -

ML199-9

E. NEEDLE COOLER

Adjust the flow control for the desired air flow to cool the needle and keep the throat plate

knife clean.

F. FOLDER OPENER

Adjust folder opener mounting bracket for required amount of opening.

V. TRIMMER SEQUENCE OF OPERATION

A. UNDERBED TRIMMER

The operation of the underbed trimmer is as follows:

1. Needle positioner stops with the needle thread positioned between the 5 and 6 o'clock

position across the hook. The needle is used for the reference point or 12 o'clock

position.

2. The movable knife is extended into the needle loop and in position to pick up the

bobbin thread.

3. The needle positioner moves the takeup and needle to up position.

4. The tension release, the pulloff and wiper cylinders operate after the positioner

reaches to up position.

5. Then the movable knife is returned to cut both needle and bobbin threads.

B. TENSION RELEASE

The needle thread tension is released so that the thread puller can pull off enough

thread to start the next sewing operation.

C. NEEDLE THREAD WIPER

The needle thread wiper pulls the needle thread above the foot before it is raised. If the

thread is trapped under the foot a long tail will be left at the start of the next sewing

opera-tion.

- 4 -

ML199-10

VI.TROUBLESHOOTING

PROBLEM PROBABLE CAUSE CORRECTIVE ACTION

Needle thread not cut.

Bobbin thread is cut

Positioner solenoid binding

Movable blade missed needle

loop

Binds in trimmer linkage

Remove bind

Check synchronizer timing

to see that trimmer is fired

at correct time

Locate and remove bind.

A light bind would slow it

enough to miss needle

loop

Both threads not cut not

picked up

Defective movable blade

Water in air lines

Defective solenoid air valve or air

cylinder

Defective needle positioner logic

Binds in trimmer linkage

Replace

Check filter. Remove

water from air lines

Repair or replace

Repair logic

Locate and remove bind

Both threads picked up not

cut

Defective movable or stationary

blade

Stroke misadjusted failing to

reach cutting position

Replace

Readjust

Needle thread cut short Pulloff cylinder improperly

adjusted Readjust

Long tail left on top side at

start of sewing Wiper not operating or incorrectly

positioned causing thread to be

trapped under foot

Repair or reposition thread

wiper as required

Bobbin thread is cut short

Bobbin tension too tight

Bobbin thread slipped out of hook

on case

Bobbin case without hook being

used

Lossen bobbin tension as

much as possible

Run bobbin thread

through hook

Replace with correct

bobbin case

- 5 -

PULLOFF ASSEMBLY

MODEL 199 U.S. 63900

80-0503-01

INS-2377C ML199-11

INS-2337E

TRIM AND WIPER ASSEMBLY

MODEL 199 FOR U.S. 63900

80-0514-01

TENSION RELEASE ASSEMBLY

MODEL 199 U.S. 63900

80-0517-01

INS-2353C

-6-

INS-2354A

AIR CYLINDER THREAD RELEASE ASSEMBLY

MODEL 199 U.S. 63900

10-1403-01

INS-765B

63900 M, T, W

STEP 1.

REMOVELOWERNEEDLE

THREADEYELET& SCREW

ASSHOWN.

STEP 2.

REPLACE EYELET & SCREW

WITHTHREADNIPPER

ASSEMBLY(10-0477-01).

THREAD NIPPER

01-5010-01

SPRING

01-5798-01

BRACKET

01-4943-01

PLATENIPPER

01-4944-01

BASEPLATE

01-3053-01

STUD

01-3038-61

BUSHING

01-3052-01

NUT

.187

UNION SPECIAL

#61453-6

61400 M, T, W

CUT OFF SHADED AREA

61400 M, T, W

STEP 1.

DRILLAND TAP HOLESQUARE (90O)TOSURFACE

OFMACHINEUSING#31 DRILL AND UNION

SPECIAL #V107 TAP.

STEP 2.

MOUNTTHREADNIPPERASSEMBLY (10-0477-01).

.312

.656

10-0477-01

THREADNIPPER

- 7 -

ML199-12

INS-2355A

DRILLING INSTRUCTIONS / DRILL FIXTURE KIT

MODEL 199 FOR U.S. 63900

10-1405-01

DRILLING AND MOUNTING INSTRUCTIONS

THREAD NIPPER ASSEMBLY 61400 M, T, W - 63900 M, T, W

REWORK - TAKEUP SPRING THREAD WIRE 61400 M, T, W

INS-2335B

FOLDER ASSEMBLY

MODEL 199 FOR U.S. 63900

80-0513-01

33-3108-12

SCREWS.H.C.S. 30-2553-01

AIRCYLINDER

30-1783-01

ELBOW

02-2702-01

BRACKET-SOL.

MOUNT

33-3105-08

SCREWS.H.C.S.

02-2652-01

BLOCK

33-0706-20

SCREWFIL.H.M.S.

NOTE:

ALL PARTS NOT IDENTIFIED ARE

SUPPLIED BY UNION SPECIAL.

SEE UNION SPECIAL MANUAL.

INS-1667C

ACCUSTOP

SYNCHRONIZER ADAPTER MOUNTING FOR U.S. 63900

80-0323-51

-8-

INS-1630-1

ML199-13

REWORK FEED SHAFT CLAMP PLATE

UNION SPECIAL

#63939F

CHAMFER THIS

CORNER APPROX.

AS SHOWN

MACHINED DOTTED

AREA TO THE

COUNTERBORES

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