Melco EMT 10T Specifications

• Single Head, Ten Needles• Tubular Goods Hooping• Automatic Color Change• Under Thread Control•Technical Manual forthe EMT 10Tembroidery peripheralPa

Electrical GroundingWARNING! It is very important that the power cord be pluggedinto a properly wired electrical outlet. Failure to have aproperly wi

7. Refer to Figure 4-7 and manually engage the trimmer solenoid pin into thetrimmer cam groove by pushing the protruded end of the pin inward with a

Trimmers Not Trimming ProperlyWhen the trimmers are not providing adequate trim quality, there are three generalareas that may be contributing to the

This situation may result if the adjustable fixed knife is worn or is not parallel to thetrimming action of the movable knife. Check this condition of

Checking the under thread presser is done in two parts. First by looking at the partitself to see if there has been any "crumpling" as shown

6. If the under thread presser does not provide the required action, replace it andcheck using steps 2 to 4 again. 7. After you are satisfied with th

Knife AdjustmentAfter performing the ink wipeoff test and determining that adjustment to theadjustable fixed knife is required, follow these steps to

11. Check the tightness of the top socket head cap screw and recheck theadjustment by performing the ink wipeoff test once again.Cut ThreadsWhen you a

5. The movable knife should be located under the adjustable fixed knife, positionedas shown in Figure 4-13. If the sloped rear tip of the movable kni

Home Position SensorIf the movable knife is mechanically adjusted correctly for home position, but the"Trimmer Not Home" message comes ON, t

Checking Select PositionAfter adjusting the movable knife home position, you must check for the movableknife "select" position. 1. Replace t

Configuring the EMT 10TOccasionally during the operation of the EMT 10T, certain situations may arisewhen the peripheral software simply "locks u

12. Check the reading of the display to be between 311 and 313 degrees.13. If the movable knife does not contact the fixture between 311 and 313, orco

3. Loosen the large sockethead screw in the lockingcollar for the Top BobbinDrive Pulley (see Figure4-16) and rotate the beltand pulley slightly unti

Picker Finger PositionIf the cap frame option is not part of your system, you may refer to the followingprocedure to center the picker fingers, should

Picker Home PositionNote: This procedure requires the use of a special service tool: the Melco pickerset fixture (p/n 995339-01). 1. Install the picke

Grabber AdjustmentThe grabber blade travel is adjusted at the transition bracket where the guide rodfrom grabber drive mechanism is attached with a se

8. Measure the distance from the front of the grabber blade guide to the tip of thegrabber blade. The distance should be 2.5 inches +/- 0.10 as shown

Under Thread Control (UTC) ReplacementTo remove the UTC assembly refer to the steps that follow: 1. With the machine in the head up position, turn the

8. Place the UTC assembly under the needle plate support bracket as shown inFigure 4-22 and install the 2 UTC assembly mounting screws. 9. Perform th

4. Press keys. The head rotates to the ‘‘Head Up’’ position and the LCDdisplays GO TO HEADUP 110.0. 5. Hold down and press

13. If the arm touches the gauge, carefully reshape the arm slightly until it clears.14. Refer to Figure 4-25 and lift the connecting link off of the

Troubleshooting LEDs and Test PointsAt the front of the EMT 10T is a metal cover plate over a variety of indicator LEDlights and a series of test poin

Sew TestWe now must actually embroider onto properly hooped material to prove theadjustment is proper. A special design named UTCTEST comes on a disk

B) Check that the UTC does not falsely signal the CHECK BOBBIN message whenthread is still on the bobbin. 1. Test for this by simply sewing

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5. Accessory AdjustmentsWide Angle Cap FrameThe Wide Angle Cap Frame (also referred to as "WACF") has several adjustablecomponents. Refer t

Cap Support PadsCheck the pads under the cap supports regularly (see Figure 5-3). When padsbecome worn, they must bereplaced. Follow these instruction

Spindles On The ClampsThe clamps form a positive lock on the frame when it is installed on the driver. Theclamps press the spindles against the roller

Cap FrameThe strap on the cap frame may need tobe adjusted for different cap materials.The factory adjustment will suffice formost cap types, but if y

AAdjustable Fixed KnifeAdjustment . . . . . . . . . . . . . . . . . 4 - 16-18Inspection. . . . . . . . . . . . . . . . . . . 4 - 13-14Replacement .

Power Distribution SectionVoltage Adjustments . . . . . . . . . . . . . . 2 - 8Module Replacement . . . . . . . . . . . . . . 2 - 8Presser Foot / As

GREEN (all should be ON) 1) I/O FPGA (I/O IC on CPU configured OK at startup) 2) Control FPGA (Control IC on CPU configured OK at startup)

Various Technical SpecificationsThe following is a list of various tension and force specification for the EMT 10T (Allspecifications to be within plu

2. Service Maintenance (except head and trimmer)GeneralThis section of the manual provides parts replacement procedures and variousadjustments require

Keyboard SectionKeyboard/Display ReplacementTo remove the keyboard/display assembly from the cover, refer to Figure 2-1 andthe following procedure: 1.

8. Remove the PCB and cover together. 9. Install a static grounding strap between the working surface and the personnelperforming this procedure.10.

Disk Drive 1. Remove thekeyboard/displayassembly and coveras previouslydescribed. 2. Disconnect the diskdrive harnesses. 3. Remove the 4screws shown i

Bobbin WinderThe optional bobbin winder ismounted in the left rear table top.There is no need to remove thebobbin winder assembly from thetable top to

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E-Stop Switch ReplacementThe emergency stop switch is located just to the left of the tensioner assembly, onthe left tensioner bracket. Refer to the f

6. Remove the locking collar the rest of the way off the assembly and remove theremainder of the e-stop switch assembly. 7. Install a new e-stop swit

Power Distribution SectionThis section is comprised of various functions including power entry, line filter, andswitching circuitry for 110 or 220 vol

5. At the rear of the peripheral, remove the four screws holding the powerdistribution module to the rear wall of the power distribution section. 6.

10. Push the module toward the rear allowing the loosened screws to capture themodule within the right angled portion of the slots.11. Install remaini

Electronics SectionThe electronic section consists of the major electronic printed circuit boards locatedwithin an RFI controlling box called the card

IMPORTANT: Do Not operate the embroidery peripheral with theelectronics cover removed. This cover provides the top of the EMIshielding for reducing RF

Ethernet Network PCBThe Ethernet PCB is positioned inside the card cage of the peripheral between theCPU PCB and the Interface PCB as Figure 2-11 show

5. Grasp the Ethernet PCB at the top corners and gently rock it out of its connectorsin the backplane PCB. Remove the Ethernet PCB. 6. Replace the Et

5. Remove the static grounding strap and replace the card cage cover. 6. Reinstall the right rear table top.XYZ Motor Driver AmplifiersThe XYZ Motor

Table of Contents1. IntroductionScope Of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1Stand

4. Disconnect all the cables from thebackplane PCB 5. Remove the entire card cage byremoving the four screws holdingit to the base of the electronics

X Beam AssemblyThe X beam assembly consist of the X carriage, X motor, X drive belt, and variousother mechanical components that make up the device th

2. Remove the X beam cover by first removing the six button head screws on thetop, then lifting the cover off the entire length of the X beam. 3. Ref

14. If replacing the X drive belt, refer to the belt replacement and adjustmentprocedure at this time, otherwise proceed directly to the X drive belt

Belt TensionNOTE: This procedure requires a specific Melco force gauge (p/n 995585-01), forproper adjustment. 1. Refer to Figure 2-14 and ensure the t

6. Grasp the force gauge body and push down on the gauge until the lower loop ofthe belt just touches the X carriage rail. 7. Read the scale on the g

4. Move to the rear of the peripheral and locate the Y motor and its mountingbracketry and drive pulleys shown in Figure 2-17. 5. From the electronic

12. Position the new motor slightly through the Y shaft Bearing support bracket andconnect the Y motor encoder harness as noted in the previous step a

1. Refer to the procedure for removing the left rear table top (with optional bobbinwinder assembly) and remove the table top. 2. Refer to Figure 2-1

7. Grasp the force gauge body and push the gauge against the belt until theplunger moves from the first mark at the edge of the wall to the second ma

X Beam Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 17X Motor . . . . . . . . . . . . . . .

3. Refer to the Caution statement at the beginning of this procedure and be certainthe Y drive belt in the other Y carriage is secure and with some a

12. Be certain the teeth on the new belt are positioned in the proper location in therear pulley to maintain the parallelism between the X beam and Y

Belt Tension AdjustmentTo adjust the Y drive belt tension, refer to the following procedure:NOTE: This procedure requires a specific Melco force gauge

7. Release the downward force on the gauge plunger and allow the finger to applyan upward force to the bottom of the top loop of the belt. 8. Read th

This page intentionally left blank2 - 30 X Beam AssemblyEMT 10T Technical Manual Melco Embroidery Systems

3. Embroidery Head MaintenanceGeneralThis section of the manual provides parts replacement procedures and variousadjustments required during repair ma

5. Remove the four cap head screws attaching the motor to the bracket standoffs. 6. Lift the motor away from the standoffs and allow the drive belt t

Belt TensionNOTE: This procedure requires a Gates 5M Tensiometer (Melco p/n 992165-01)for proper belt adjustment.14. Apply downward pressure on the mo

The procedures in the following pages will result in the most proper and accuratealignment and repair of the Z encoder system that is possible and/or

6. While slowly rotating the head, check that the green LED on the front or theinnermost LED on the CPU blinks once each revolution (this is the "

Needle Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 24Replacing Needle Bar / Presser Fo

10. Orient the connector on the encoder cable so the outside black wire is to theright and will plug into pin 1 of the new encoder (see inset in Figur

2. With the network cable removed (or boot disk not inserted into the disk drive),turn ON the embroidery peripheral. 3. Locate the green LED marked &

9. Remove the head up alignment pin tool and rotate the Z shaft until you canaccess the second cap head screw on the encoder coupling to Z shaft.10.

Thread Tensioner AssemblyAssembly Removal 1. Turn OFF the EMT 10T and disconnect the power cord from its power source. 2. Remove the three screws and

Thread Guide TubesThe thread guide tubes from the thread tree extend into the tensioner bracket. Ifyou wish to remove the tensioner bracket assembly f

5. Perform the thread tensioner check spring adjustment that follows the checkspring replacement procedure. The adjustment procedure, not only adjust

Check Spring AdjustmentAfter replacing a thread check spring, install the thread tensioner into the threadtensioner mounting bracket. You must then ad

If you rotate less than 2 spokes you will begin to lose the force needed to make atight stitch. You may have enough stroke but not enough force to cin

Jump Stitch SolenoidReplacementIf a jump stitch solenoid mustbe replaced, follow thesesteps: 1. Color change the needlecase to needle #10 forbest acce

6. Remove the 2 screws holding the mechanical jump stitch mechanism and coverto the jump stitch bracket as shown in Figure 3-14. Remove the mechanism

Picker Finger Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24Picker Home Position . . . . . . . . . . .

NOTE: During installation the solenoid must be adjusted properly. If you did notadhere to the previous NOTICE, or if for some other reason, theadjustm

Bracket PositioningWhen attaching the jump stitch solenoid and bracket, it is not only necessary toplace the plunger correctly, but you must also posi

Color ChangeThe color change PCB, the color change motor, the cam, and harnesses are locatedunder the color change covers behind the embroidery head t

CAUTION! The Color Change PCB is snapped into place on top ofthe color change bracket. Be careful not to damage the photosensors or any other compone

3. Remove the color change motor encoder cover (see Figure 3-18).The color change harness connector at the color change motor encoder is capturedand

Color Change Motor Belt TensionThe color change belt tension should cause the color change cam to rotate withminimum backlash. The belt should be tens

5. Refer to Figure 3-21 and disassemble the various parts of the color change camassembly to replace the part in question. Leave the pulley and space

8. Position the pulley and spacer against the left outside of the bracket and thecolor change cam against the two 2.75mm thrust washers and thrust be

Needle CaseReplacing Needle Bar / Presser Foot / Associated PartsTo replace a needle bar, presser foot, or other parts associated with this area refer

7. Next, loosen the needle bar stop clamp (black clamp). 8. Loosen the top screw (see Figure 3-23) on the needle bar. (You will remove andtransfer th

1. IntroductionScope Of ManualThe EMT 10T Embroidery Peripheral Technical Manual is a guide for performingrepairs and adjustments which go beyond rout

14. You may reinstall the upper needle case cover at this time. The lower needlecase cover must, however, remain off to perform the needle bar heighta

Caution! You must remove the needle position photo sensorinterrupter blade to avoid damage to the photo sensors on the colorchange PCB. 6. Remove one

Replacing Needle Case Cross Roller BearingRefer to the figures within the needle case removal and installation procedures forthis procedure. 1. Remove

6. Check that the cross roller bearing is centered in the 2 v-rails by the followingmethod: a) Center the retainer plate assembly on the embr

Retainer Plate Bearing AdjustmentNote: This procedure requires the use of a special service tool: the V-Rail Adjustmentfixture (p/n 995675-01). 1. Loo

7. Push the retainer plate assembly left and right as far as possible without thebearings coming off the end of the embroidery head v-rail. While mov

7. Install the new reciprocator into the head (see Figures 3-28 and 3-29). Make sureit is oriented properly and insert the connecting stud onto the c

Installing Needle CaseTo reattach the needle case refer to the following procedure: 1. Insure the following conditions are set: a) The cross r

7. Remove the clamping devises from each end of the V-rail and reinstall all coversthat were removed during the procedure.8. Power up the peripheral

Lower Rail Retainer AdjustmentThis adjustment affects the forward and backward movement of the bottom of theneedle case. Do not make the adjustment so

• To indicate that two or more keys must be pressed to obtain a desiredresult, each key is indicated with commas between them. An example is:Press Shi

Rotary HookHook ReplacementThis procedure includes steps for setting hook timing during the hook installationprocess. After completing this procedure,

12. Press the keys. Thehead rotates to the ‘‘NeedleDepth’’ position without bringingthe needle down and the LCDdisplays NEEDLE DEPTH

19. Install the UTC assembly with the retaining finger tab inside the rotary hookbobbin basket notch. Install the screws.Adjust The UTC AssemblyYou mu

If the clearance needs to be adjusted proceed with the next step. If OK, go to theNeedle Depth adjustment procedure.25. Slightly loosen the two small

32. Next press . The head rotates one revolution. The LCD displays ONEREVOLUTION 110.0. The needle bar should be down with the presse

40. Loosen the screw on the upper-dead-stop clamp again and slide the clampagainst the upper stop bumper. The screw must be positioned directly forwar

Hook Timing Adjustments OnlyThis procedure is for checking and setting hook timing adjustments when the hookassembly is not being replaced. If you are

If hook timing is correct,proceed to the UTCAdjustments in the nextprocedure. If hooktiming is NOT correct,proceed to Step 11.11. While the hook is st

20. Position the POINT of the HOOK directly behind the SCARF of the needle. Leavea THREAD distance between the POINT of the hook and the needle.21. T

4. Trimmer MaintenanceGeneralThis section of the manual provides parts replacement procedures and variousadjustments required during repair maintenanc

Good Maintenance PracticeThe procedures in this manual are guidelines for performing repair maintenanceand must be used by personnel practicing good m

6. The beam makes two moves that clears the top thread (now called the tail) outof the material. 7. At approximately the same time the threads are be

3. Disconnect the grabber motor power, motor encoder, and grabber home opticalsensor harness connections found in the bundle of harnesses in and abou

3. Reverse order of the above steps to replace the grabber blade. When reinstallingthe grabber blade, orient the blade with the hook facing to the le

6. Rotate a new solenoid assembly into the mount. Do not tighten the set screw inthe top of the mount at this time. 7. Reinstall the solenoid and mou

Picker Solenoid AssemblyThis assembly is mounted under the embroidery head in the rear bed. To removethis assembly refer to the following steps: 1. Re

3. Slide the picker assembly out of the picker bracket mount.When re-attaching the picker link to the picker assembly, refer to the alignmentsection

9. Rotate the knife and arm clockwise until the back side of the knife is restingagainst the left side of the needle plate bracket.10. Tighten the he

6. Remove the adjustable fixed knife and the under thread presser. 7. Replace the required new parts. 8. Install the socket head cap screw to secure

Trimmer Adjustment ProceduresOne procedure combining all the required adjustments organized in specific order ispresented in this section for providin

Damaged Trimmer Cam or Trimmer SolenoidTo check for a damaged trimmer cam or trimmer solenoid, refer to the followingprocedure: 1. Remove the Z motor