Clinton 870LCD Service Manual Download | Manualshive

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CLINTON

MODEL AS-870 / 870LCD

VARIABLE SPEED

DC SERVO MOTOR

NEEDLE POSITIONER THREAD TRIMMER

NEEDLE COOLER

SERVICE MANUAL

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Summary of Contents for 870LCD

Page 1: ...CLINTON MODEL AS 870 870LCD VARIABLE SPEED DC SERVO MOTOR NEEDLE POSITIONER THREAD TRIMMER NEEDLE COOLER SERVICE MANUAL ...

Page 2: ...MUM SEWING SPEED 4 1 SECTION V PROGRAMMABLE LCD DISPLAY 5 1 A B C D E DIRECT ACCESS PARAMETERS HIDDEN PARAMETERS MASTER RESET PULLEY RATIO TEST PROGRAM 1 TREADLE TEST 2 SYNCHRONIZER TEST 3 ENCODER TEST 4 DIVIDER TEST 5 1 5 3 5 3 5 3 5 4 5 4 5 4 5 4 5 4 SECTION VI CONNECTOR DIAGRAMS 6 1 SECTION VII DRAWINGS AND PARTS LIST 7 1 A B C D E F G H MAJOR ASSEMBLIES MOTOR ASSEMBLY DC SERVO CONTROL BOX ASSE...

Page 3: ...ches or brakes are used All components interact to give a fast accurate and reliable sewing machine drive The components of the system are shown are shown in figure below The model 870LCD has outputs for a trimmer footlift wiper and needle cooler It can be used to operate all Clinton trimmers as well as the Singer Union Special Pfaff Juki Brother undertrimmers and chain stitch machines The program...

Page 4: ...ed spacers supplied See Figure 7 2 Install pulley and belt then check the following a The motor is mounted so that the motor drive pulley and sewing machine drive pulley are properly aligned b The V belt connecting the motor to the sewing machine should be tensioned properly It should be possible to pull a correctly tensioned belt together between two fingers within approximately 2 cm 3 4 Excessiv...

Page 5: ...in figure 2 2 Make sure that the rod clears the sewing machine belt 4 Using the mounting clamp hole as a guide drill and tap a 10 32 hole in the machine casting Secure clamp and rod with a 10 32 X 1 2 B H M S 5 Drill a 1 1 4 Dia hole in table to route synchronizer cable to logic box Check that cable has adequate slack when tilting machine for service D LCD DISPLAY Mount the LCD display console at ...

Page 6: ...motor and sewing machine to prevent a static charge buildup at the sewhead 2 3 G MOTOR ROTATION Temporarily remove the V belt Turn power on then move the pedal forward and note the direction of motor pulley rotation If incorrect do the following 1 Turn power off 2 Refer to section V B Hidden Parameters and follow the instructions to change motor rotation The parameter is in the Toggle Switches gro...

Page 7: ...handwheel until the needle is positioned down 5 Rotate the down sensor disc until the notch is centered in the photo interrupter module 6 Rotate the handwheel until the needle thread is positioned between 6 and 7 o clock around the bobbin case Rotate the trim disc until the notch is centered in the photo interrupter module 7 Tighten the disc locking screw and replace the cover NOTE After power is ...

Page 8: ...A MAXIMUM SEWING SPEED Maximum sewing speed can be adjusted by changing the MAXIMUM SPEED parameter in the LCD display see section V 4 1 ML870LCD 8B SECTION IV CONTROL BOX ADJUSTMENTS ...

Page 9: ...meters are divided into four 4 groups They are 1 SPEEDS 2 TIMERS 3 COUNTERS and 4 TOGGLE SWITCHES Table 5 1 describes each parameter shows the default value and range of adjustment for each parameter To change a parameter follow the sequence described below 1 Press the key to enter the programming mode Continue pressing this key until the parameter group that is to be changed is displayed As an al...

Page 10: ...tant position speed Not used in this system Set to enable only on machine with trimmer safety sw If enabled machine will not run unless safety switch is properly connected Set to CLS if safety switch is closed while sewing or OPN if switch is open while sewing OFF CONTINUE DISABLE CLS ON OFF CONTINUE PED NEUT ENABLE DISABLE CLS OPN 5 2 PARAMETER DESCRIPTION DEFAULT RANGE SPEED GROUP RPM RPM MINIMU...

Page 11: ...ntil the display goes blank 2 Press the key key and key simultaneously Keep pressed then 3 Turn power on The display alternates between Push Set and For Reset 4 Push the key within 10 cycles 5 The word Programming is displayed The parameters will be reset to their default values after a few seconds D PULLEY RATIO RATIO BETWEEN MOTOR AND MACHINE PULLEYS During the initial setup and after power is f...

Page 12: ...o its maximum cw position 2 Synchronizer Test Press the button The display will read TEST SYNCHRONIZER Press the button Rotate the machine pulley by hand The display will show the position The positions are as follows UP DOWN and TRIM 3 Encoder Test CAUTION Remove sewing machine belt The belt has to be removed because the motor may not develop sufficient torque to turn the machine Press the button...

Page 13: ...NSOR UP SENSOR TRIM SENSOR GND LED 2 6 AUX INPUTS 1 2 3 4 5 6 5 GND CHASSIS GND I 1 I 2 I 3 3 4 AUX OUTPUTS 1 2 3 4 48 V R1 48 V R2 4 2 FOOTLIFT 1 2 FOOTLIFT SOL 48V 5 9 TRIM WIPER NEEDLE COOLER AND SAFETY SWITCH 1 4 2 5 3 6 7 8 9 WIPER SOL WIPER SOL 48V TRIMMER SOL TRIMMER SOL 48V NEEDLE COOLER NEEDLE COOLER 5V OR 10V SAFETY SWITCH GND SAFETY SWITCH NO ML870LCD 6A SECTION VI ...

Page 14: ... S2 SIG GND PHASE C PHASE B PHASE A 5V 9 16 LCD DISPLAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 EXT1 CHASSIS GND 5V GND D0 D1 D2 D3 D4 D5 D6 D7 CA1 E ERD CA0 10 4 AC POWER 220V 3 1 2 3 4 PHASE A PHASE B PHASE C CHASSIS GND 1 1 4 MOTOR VOLTAGE 1 2 3 4 PHASE A PHASE B PHASE C CHASSIS GND ML870LCD 11 ...

Page 15: ...DRAWINGS AND PARTS LIST MODEL 870LCD 81 0752 02 7 1 A MAJOR ASSEMBLIES ML870LCD7A SECTION VII ...

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Page 17: ...HEX HARDWARE KIT MOTOR MOUNT PIN BRACKET MOTOR MOUNT SNAP RING BOLT ADJUSTING NUT HEX WASHER SPLIT LOCK GROMMET 30 4433 01 30 4434 01 30 4435 01 30 4436 01 30 4437 01 30 4438 01 30 4439 01 30 4440 02 30 4441 01 30 4442 01 30 4443 01 30 4444 01 81 0732 01 30 4445 01 30 4204 50 30 4204 60 30 4204 65 30 4204 70 30 4204 75 30 4204 80 30 4204 85 30 4204 90 30 4204 95 30 4204 100 30 4204 105 30 4204 110...

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Page 19: ...ER HOUSING SCREW M4 X 10 SHAFT SYNCHRONIZER SCREW M6 X 8 S S S PC BOARD SYNCHRONIZER SCREW PC BOARD MOUNT WASHER SPLIT LOCK BASE SCREW M3 X SELF TAP SCREW M3 X 10 BEARING 81 0733 01 30 4262 02 30 4263 01 30 4264 01 30 4428 01 30 4266 01 30 4267 01 30 4268 01 30 4270 01 30 4271 01 30 4272 02 30 4273 01 30 4429 01 30 4275 01 30 4430 01 30 4209 01 30 4277 01 30 4278 02 30 4279 01 30 4280 01 30 4281 0...

Page 20: ...SCELLANEOUS PARTS 7 7 ITEM DESCRIPTION PART NO QUANTITY 1 2 3 4 PROGRAMMABLE DISPLAY PROGRAMMABLE DISPLAY BRACKET MOUNTING SCREW M4 X 12 SCREW 30 4321 01 890 30 4317 01 870LCD 30 4286 01 30 4287 01 30 4288 01 1 1 1 1 2 ML890 21A ...

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