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6 T r o u b l e S h o o t i n g
G u i d e |
To identify the type of machine, it has a black sewing
head with six needles. The serial number will start with 882_ _ _ _ or 892_
_ _ _, EM6 895_ _ _ _.
THE MACHINE WON'T COME ON. THE DISPLAY IS BLANK:
- Check the power source. Make sure it is a working outlet.
- Make sure it's plugged in.
- Check to see if the fan is on at the back of the machine. If not,
again check the above two items.
- Check the Power Harness Connector in front of the Power Supply for a
strong connection. It is located down inside the compartment under the
Keyboard Assembly.
- Lift the Keyboard Cover to check to see if the Keyboard Ribbon Cable
is connected to the bottom of the Keyboard PCB. Try adjusting the
Intensity Adjustment at the right side of the Keyboard. The Keyboard
Cover must be removed to see the Adjustment POT or Wheel on the PCB.
- If none of the above fixes the problem, it is best to test the Logic
Voltage at the CPU PCB under the back left cover opposite the Keyboard
Cover. Remove the cover, and test the voltage at TP5 (+5V) & TP6
(GND) on the CPU with part number 384993-01. The test points are located
at the upper edge of the board, just right of center. Use a Digital
Multimeter to perform the test. Disconnect Computer Interface Cable
before test & adjustment.
THE DISPLAY IS BLANK, AND THE FAN IS RUNNING:
- If the CPU- PCB has the part number 000493-01, the test points are
located under the 4-RED & 1 Green LED's at the left side top of the
board. There are 2 rows of GOLD PINS under the LED's. Use the first
2-pins of the second row of pins, starting on the left. The first pin is
marked GND, and the pin to the right of it is marked +5V. Do not cross
the test leads from the meter when connecting them to the test pins on
the board.
- It is best to use the solder connections on the back of the board for
these pins to allow ease of testing. Note: The machine must be powered
on for this procedure. The voltage should be set at 5.00VDC to 5.03VDC.
To tune the voltage have the Keyboard raised, and laying on it's face.
- Do Not Disconnect the Keyboard Ribbon Cable to perform the test. The
adjustment Pot or Screw is on the left side of the Power Harness
Connector down in front of the Power Supply. Use a small screwdriver
similar to the one that is used to replace needles to make the
adjustment. Turn the adjustment screw clockwise to adjust up to the
required voltage (5.00VDC to 5.03VDC).
- If there is little or no voltage showing on the Digital Volt Meter, it
would be best to call your distributor for a replacement Power Supply.
The part number is: 344379-01. The Technical manual has the information
explaining how to replace the part. The part number for the manual is:
115075-02. See Pages: 6-16 to 6-17.
THE KEYBOARD DISPLAY IS STILL BLANK:
- If the Power Supply is replaced, and the Display is still blank, and
the voltage test at the CPU reads correctly, replace the Keyboard PCB.
The part number is: 384309-01. The Technical Manual has information
explaining how to replace the Keyboard. The part number for the manual
is: 115075-02 (pg. 6-15)
- The Keyboard has been replaced, and the Display is still blank.
Replace the CPU PCB. The part number is 384993-01. If the machine serial
number starts with 891_ _ _ this CPU PCB must be used. If the serial
number starts with 892_ _ _ _ then the above CPU can be used and also
the upgrade CPU with the part number: 000493-01. Some of the 891_ _ _ _
serial number machines have been upgraded to use the newer CPU PCB when
a chassis has been replaced. Check with your distributor to find out how
to tell if the machine has been upgraded, as PCB availability may allow
for the use of the newer CPU. One of the biggest reasons for this
information is that, if another machine's spare parts kit has this CPU,
it could be used to fix the older machine.
- If the Display doesn't come on after replacing the Power Supply,
Keyboard, or CPU Bd., call your distributor for a service call.
THE DISPLAY IS ON, BUT BY PRESSING ON THE KEYS NONE OF THE MENUS WILL
CHANGE. THE ARROW KEYS WON'T RESPOND EITHER:
- Try turning the machine off, and then on again.
- If the Keyboard is still inoperable, use the information on the first
two pages of this guide to try to determine the cause of the error.
THE PANTOGRAPH MOVES ON IT'S OWN, BUT ONLY FORWARD OR ONLY BACK. THE
OTHER POSSIBILITY IS THAT IT MOVES ONLY LEFT OR ONLY RIGHT:
- Replace the Keyboard PCB, as one of the keys may be sticking.
THE MACHINE WON'T STOP SEWING IF THE STOP KEY IS DEPRESSED OR FRAMES
BACK ON IT'S OWN, AND WON'T STOP FRAMING BACK:
- Turn the machine off and wait at least 15 seconds, and turn it on
again. Use the Head Timing Menu to "Go to Head Up" when the
machine powers up. Use the Power Fail Rescue Function in the HOME MENU
to retain the design, and try to finish the design. If the machine still
won't stop using the STOP Key or stop Framing Back, replace the Keyboard
PCB.
THE MACHINE STARTS SEWING ON IT'S OWN:
- If this has happened more than once replace the Keyboard PCB, as the
START Key is probably engaged when it shouldn't be. Part # 384309-01
THE PANTOGRAPH MOVES BACK AND FORTH TOO FAST OR TOO SLOW. THE X
CARRIAGE MOVES THE HOOP LEFT & RIGHT TOO FAST OR TOO SLOW:
This is when the Arrow keys are used to move the pantograph when the
machine is not sewing so alignment of the hoop can be changed.
- Depress the FAST/SLOW Key to reset the pantograph jog speed so it
moves slow or fast. This is not a fault of the Keyboard. It is a jog
speed control for the pantograph not a sewing speed control.
THE MACHINE DISPLAY FLASHES "EPBIOS" & "UNIT
NUMBER", AND THE MACHINE WON'T COME ON LINE:
- Check the EDS system in the computer to see if the machine is still
enabled. If the machine is to come on line it must be enabled in EDS
whether EDS2 or EDS3 is being used. If there is only one peripheral,
enable a second one in peripheral menu to make sure EDS is scanning for
peripherals. Use page 10-3 in the EDS2-manual, and page 11-2 in the
EDS3-manual to find out how to enable the machine(s).
- Check the configuration of the machine. Use the information in the
Operator's Manual (PN#114300-01). It begins on page 2-2 to re-configure
the machine. If the machine type (EMC6 or EM6) or the Unit Number is
incorrect, the machine won't even request a download to come on line.
- Check the Interface Cable that connects the computer to the sewing
peripheral for strong connection or if it is connected at all. This
cable may be damaged. The part numbers for the various lengths vary.
Call your distributor for information.
- If the machine still won't come on line, call your distributor. The
CPU Bd. in the sewing peripheral may be at fault. The other possibility
is that if the EDS version the computer is using is EDS2, the Network
Bd. may be damaged. If the EDS3 software is being used, it may be
improperly configured. COM 2 should be disabled in the software. This is
usually done when EDS3 is loaded prior to operating EDS3.
THE PANTAGRAPH WON'T MOVE AT ALL WHEN SETTING HOME:
- Test the Logic Voltage as explained on pages 1 & 2 of this guide
first.
- If the Logic Voltage tests correctly, try configuring the machine
again using the Operator's Manual on pages 2-2 through 2-3. Manual Part
Number:114300-01. Re-configuring the machine is a very good way of
resetting the machine for most errors that are out of the norm.
- The 24 volt source may be dead in the Power Supply. To test, use a
Digital Volt Meter. Use test points TP2 & TP3 on the CPU PCB with
the part number 384993-01. Use the test points P-1 & P2, (Top row of
Gold Pins under LED's), on the CPU PCB with part number 000493-01.
- If the voltage is not present or very low, replace the Power Supply
(344379-01)or possibly the X/Y Amp PCB (384312-01). See the Technical
Manual for replacement instructions. Pages. 6-13 through 6-16
- One or both of the motors could be damaged. IMPORTANT: Power the
machine down, and remove the Electronics Cover. See page 6-5 in the
Technical Manual to find this cover. There are 4 red LED's & 1 Green
LED in the upper left corner of the CPU PCB.
- Push the pantagraph towards the back and front (Y AXIS) of the machine
slowly, and observe the 2 middle red LED's of the 4 to see if they light
at all. Try pushing the X Carriage (Hoop Holder - X AXIS) left &
right slowly to see if the same 2 LED's light at all. If they do, the
motors, and wiring should be undamaged.
- If the either of the motors fail to light the 2 middle red LED's, call
your distributor for more information to determine what parts are
needed. A service call may be required. The part numbers for the motors
are (X Motor 000589-01) & (Y Motor 334343-01).
- It would be a good idea to check the X & Y Axis Motor Wiring
connections.
- The same procedures starting on page 4 are to be used when both or
only one Axis (X or Y) is not moving.
- Use the same procedures as mentioned to test the bad motor(s).
SELECTING A HOOP SIZE:
The machine errors when doing so.
- If "Machine Running" or "Run Job Error" shows when
trying to select a hoop size, push the MENU Key until "RESET
MENU" shows. Push ENTER, and "System Reset" will show.
Push ENTER again to reset the machine. Push the MENU Key until reaching
the Design Menu, and set up the design again.
EITHER THE X OR Y AXIS OR BOTH WON'T MOVE WHEN USING THE ARROW KEYS:
- Use the same instructions starting on page #4 of this guide to
troubleshoot this error. See "The pantagraph won't move at all when
setting home".
THE PANTOGRAPH UNLOCKS MID-SEWOUT:
- Check to see if the garment has caught on any part of the machine.
This will cause a stoppage, as any hesitation in the X or Y Axis
movements will cause the pantagraph or X Carriage to unlock as if the
motor is turned off. It is built into the software to do so to protect
the operator, and the machine from further harm or damage.
- If the garment has gotten caught in the chassis or there is a Bird's
Nest of thread under the Needle Plate, push the Stop button. If it won't
stop sewing, turn the machine off. Wait 15 seconds, and power it back up
again. Try a POWER FAIL RESCUE to see if you can recover the design.
- If the error continues, and there are no apparent reasons for the
stoppage in the pantograph movement, turn the machine off. Remove the
Keyboard Cover, and check the Y Motor wiring connections as seen in the
Technical manual on page (6-18). Remove the Left Side End Cap as seen on
page (6-5). Check all wiring connections at the X Interface directly
under the Y Pantograph support. Check all wire connections for
tightness, and also see if any are damaged. Check especially the flat
cable (X Flex Cable PN# 004760-01). This cable transfers all power to
the X Motor under the small cover at the left side of the Black
Pantograph Bar through the X Interface PCB.
- If the X Axis, (left & right movement-Hoop Holder), is the only
direction that won't move, replace the X Flex Cable first. If the Y
Axis, (Back & Forth movement-Pantograph), is the direction that
doesn't move, replace the Y Motor (PN#334343-01).
DESIGN LOSES REGISTRATION MID-SEWOUT OR JUST SEWS ERRATICALLY:
- Use all possible fixes listed on pages 6 & 7 of this guide.
Especially try the Re-configuration in the Operator's Manual (PN#
114300-01), on pages 2-2 through 2-3 first.
X AND OR Y RACK NOT DONE:
This is the speed difference, mechanically or electronically, of the X
or Y Axis that is not in accordance with that of the design information.
- Oil the pantograph according to the information in the Operator's
Manual on pages 3-12 through 3-16 first if it hasn't been done yet or
lately.
- Try a Re-configuration as outlined on pages 2-2 through 2-3 in the
Operator's Manual.
- Check all X & Y Motor wiring connections as suggested on page 6 of
this guide. Look under the right end of the pantograph where the 3 oil
holes are to see if the grounding nut is tight or there at all. Make
sure the X & Y axis move easily when the machine is powered off. If
not check both Motors, and all pulleys for free movement.
- The X Motor is under the small black cover on the left of the black
Pantograph Bar. The Y Motor is under the Keyboard of the machine as seen
on page 6-18 of the Technical Manual.
- Test the Logic Voltage as suggested on pages 1 & 2 of this guide.
- If the error seems to be just the X Axis (Left & Right- Hoop
Holder Movement), replace the X Flex Cable (PN# 004760-01), and the X
Motor next.
- The next step would be to call your distributor for a service call.
RACK LIMIT ERROR:
The hoop has moved to close to either it's X or Y Axis limit.
- Make sure the hoop size is selected in the Home Menu before starting
the design.
- Make sure the Trace function is used to avoid this error.
THE NEEDLE CASE JUST TRIES TO DRIVE OFF OF THE SEWING HEAD AS IF IT
DOESN'T READ ANY COLOR CHANGES:
- Test the Logic Voltage (5.00 to 5.03VDC), according to the information
listed on pages 1 &2 of this guide.
- Make sure the black Color Change Cam under the Color Change PCB isn't
loose on it's shaft. Use the information on pages 6-25 & 6-26 of the
Technical manual to see how to remove the Color Change PCB so the Color
Change Cam is exposed.
- There shouldn't be any left & right movement of the cam at all. If
there is, call your distributor to see how to properly position the cam.
- Replace the Color Change PCB (PN#001306-01), as shown on pages 6-25
through 6-26 in the Technical Manual (PN# 115075-02).
OFF COLOR INDEX ERROR:
The Needle Case is not positioned electronically & mechanically
according to the Color Change PCB for the needle to pass through the Needle
Plate Hole correctly.
- If the Red Color Change LED on the front of the Color Change PCB cover
is on, the Color Change Cam needs to be rotated slowly Clock wise or
Counter- Clockwise to cause the red LED to go out. The Needle case is on
color when the LED is out. See the Needle Case Removal section on page
5-10 in the Technical Manual to see where the Color Change Cam Shaft
Screwdriver Slot is.
- Use this slot to rotate the shaft in the manner suggested above. When
the red LED is out, push the MENU Key until the Head Timing Menu is
reached. Push the ENTER Key. Push the ALT & UP ARROW at the same
time, and the message should read "Go To Head Up".
- If the error persists check the Color Change Cam to see if it is
moving on it's shaft according to information on page 7 of this guide
- If the RED Color Change LED never goes out while rotating the Color
Change Screw, replace the Color Change PCB (PN# 001306-01).
- If the error continues, call your distributor for more assistance or a
service call.
CC TIMEOUT ERROR:
The Needle Case didn't move to the next needle in the Color Change
Sequence in the allotted time (15 seconds).
- If the RED Color Change LED is on, rotate the Color Change Cam
screwdriver slot according to the information listed above in the (Off
Color Index Section) of this guide.
CC-HEAD UP ERROR:
The needle bar wasn't in the full up position before the Color Change
System tried to make a color change.
- If the red Color Change LED is on, rotate the Color Change Cam
screwdriver slot according to the information listed on page 8 (Off
Color Index) of this guide.
- When the LED is out, push the MENU key to go to the HEAD TIMING MENU,
press the ENTER key, and press the ALT & UP ARROW to make sure the
Needle Bar is at head up before continuing.
- WARNING: If the serial number of the peripheral starts with
891_ _ _ _, the sewing head has a Jump Stitch Mechanism. If the Color
Change Cam screwdriver slot is rotated, make sure that the Needle Case
is moved to the Needle Bar it last sewed with. If a Take Up Lever is
down, move the Needle Case back to that needle position.
- The Needle Bar Stud will come out of the Jump Stitch Mechanism, and a
Needle Bar will have to be picked up. The head will stop at "Z Time
Out Error" with a dropped needle bar when trying to "Go to
Head Up". Call your distributor to find out how to pick up a
dropped needle bar.
Z TIME OUT ERROR:
This error means that there is a stoppage of the Z Axis movement. This
means that the Take Up Lever stopped moving up & down, and the Needle
bar has stopped moving up & down, and the Hook has stopped rotating.
They are all part of the same movement.
- Check the hook to see if there is any thread in or behind the Hook
Assembly. If so, remove it. When the thread is removed, use the Head
Timing Menu. Press Enter once when reaching the menu, and press ALT
& UP ARROW simultaneously to "Go To Head Up".
- If the error continues, remove the Retaining Finger as seen on page
3-31 of the Operator's Manual (PN#114300-01). Remove the Bobbin Case,
and try to rotate the spindle on the inside of the hook assembly. It
should rotate independently of the hook assembly if the hook isn't bound
by thread or a broken needle tip.
- If the hook is bound, remove the hook from the sewing peripheral by
loosening the 3 larger slotted (flat head) screws at the back of the
hook assembly. See page 3-26 in the Operator's manual to find the
screws.
- If the inner basket of the hook won't rotate by trying to turn the
spindle inside, remove the curved bar on the outside of the hook.
- It is held on by 3 very small slotted screws. Try to remove any thread
or needle tip that may have been hidden by this bar. If the hook is
still bound, replace the hook with a new one (PN#341992-05).
- The inner basket rotates when the Restraining Finger is removed, but
the Z timeout Error persists. Remove the needle from the needle bar that
is currently indexed. IMPORTANT: Turn the peripheral off. Remove the
black cover with a red marked oil hole at each end of it. This cover is
on top of the sewing head behind the Thread Spool Platform.
- Once removed, try rotating the toothed pulley with the black rubber
belt counter-clockwise to see if the Needle Bar can be raised and
lowered easily.
- If the pulley can't be rotated, remove the black cover on the face of
the Needle Case that has "Melco Industries". Loosen the screw
to the silver needle bar clamp inside the needle case on the needle bar
that is currently engaged. Try to move the Needle bar up and down.
- If it moves, try rotating the pulley at the back of the sewing head
again. If it still won't move try oiling all of the sewing head oil
ports. Let the oil soak in for an hour. Try rotating the pulley again.
If it still won't rotate, call your distributor.
- If the pulley does turn easily when trying to rotate it, but stops the
rotation at one point check to see if there is a dropped needle bar.
Read the "Warning" starting on page 11. There may be a dropped
needle bar.
- If the pulley rotates easily through 360 degrees, do so until all of
the Take Up Levers are even. The engaged needle will be down.
- Turn the peripheral back on. Press the Menu key . Go to the Head
Timing Menu. Press ENTER. Press the ALT and UP ARROW simultaneously. The
display should read "Go To Head Up". If it doesn't call your
distributor.
THE TAKE UP LEVERS MOVE UP & DOWN, BUT THE NEEDLE BAR WON'T COME
DOWN TO SEW:
- Check the silver knob with the red dot on it behind the left side of
the Needle case. Make sure the red dot is facing forward. If it isn't,
rotate it so that it is. It may be easier to see the position of the red
dot when the Needle Case is on needle position 6.
- Refer to the Parts Replacement instruction (PN# ) to see how to check
the adjustment of the Upper Dead Point Stops if the needle bars still
won't come down to sew. If the stops are in the wrong position the
needle bars won't come down to sew.
- If the engaged needle bar won't stay down when it is pulled down, call
your distributor as the Reciprocator may be damaged. It is what drives
the Needle Bars up and down when engaged.
NOT AT HEAD UP ERROR:
The Z Encoder has detected that Z Drive shaft isn't in position to be
at Head Up. A Take UP Lever, Needle Bar or the Hook may not be in the
correct position for this to happen. All three positions have to be correct
for the Z Axis to be at the head up position.
- Use the information in the Z Time Out section of this guide to try to
determine the cause for the error
MISSED HEAD UP ERROR:
- Use the Z Time Out Error information to try to detect the cause for
this error.
THE SEWING QUALITY OF THE DESIGN IS JAGGED AROUND COLUMNS, AND SOME
TIMES OBJECTS ARE MALFORMED. THE COLUMNS OR OBJECTS DON'T MEET THE FILLS OR
OTHER OBJECTS IN THE DESIGN:
- Check the hooping of the garment first. It may be too loose in the
hoop. The material may be to elastic to hoop tightly, so make sure that
there is enough backing being used. KK100 adhesive spray can keep the
garment in place with the backing, and make it more stable.
- Oil the pantograph at regular intervals to keep the assembly moving
smoothly. See the Operator's Manual (PN#114300-01) on pages 3-12 through
3-16 for information.
- f the X & Y Axis belts to see if they are torn or breaking. If any
of the belts are, refer to the Illustrated Part Manual (PN#110011-02) to
find the part number for the damaged belt. Call your distributor's
Part's Department to replace the belt. Note: The Belt Tension Meter is
needed to test the tension of the new belt(s). (PN#992165-01).
- The X or Y belt tension may be too loose. Call your distributor if
this is suspected.
- The X Carriage or Hoop Holder Assembly may have too much play in it's
rollers. Remove the slide in Table Top, and look under the Black
Pantograph Bar. Hold onto the 4 corners of the X Carriage, and push
towards the front, and back of the machine to see if there is any play
in these directions. Refer to (Doc# 110178-01 Rev A) to see how to
re-adjust the rollers.
- Check the 2 Hoop Holder Pins on the X Carriage to see if either is
loose in the plate they are mounted on. If either of them are, call your
distributor as the X Carriage will have to be replaced. If either of the
pins is bent to one side the X carriage will need to be replaced.
- Check the metal hoop bracket on the hoop that is being used, as the
slots that fit the pins may be worn. The bracket may be loosely mounted
on the wooden part of the hoop. Try another hoop to verify a bad hoop
bracket. Make sure the wooden part of the hoop isn't cracked either.
Call your distributor for replacement hoops.
- If the Full- Height Jacket -Back Hoop is being used, don't have the
sewing speed set at 650 as this hoop flexes due to the weight of the
hoop verses the Hoop Bracket, and the strength of the pantograph. Sewing
at a slower speed can make all of the difference.
- If the error is occurring while using the Cap Frame Hoop, check the
wires mounted on the driver for tension. If the black bar on the driver
is too loose it can cause distortion. The cables can be replaced if they
are too long. Call your distributor for more information.
- There may be damaged bearings in the Pantograph or Y Carriages. The X
or Y Motors could be damaged. Call your distributor for more information
or a service call.
- Make sure that the thread tension in between the Tensioners, and the
Bobbin Case aren't too tight.
NO JUMP STITCH:
There are running stitches in between letters or objects in the
design. The machine sews back to origin with running stitches at the end of
a design, instead of one long stitch. The needle stays down at the end of a
design. There is a crease down the center of large letters instead of a nice
smooth column.
- The Jump Stitch Solenoid and or the Color Change PCB are damaged.
- Turn the machine off.
- Remove the Tensioner Assembly, and Color Change Assembly to see the
Color Change PCB.
- A Digital Volt Meter will be needed to test the resistance of the Jump
Stitch Solenoid at the connector on the left side of the Color Change
PCB. The connector will have 2 white wires, and black insulation around
them.
- Disconnect the connector, and test the across the 2 white wires.
- The meter should read 31 ohms if the solenoid is good. If it reads
near 0, call your distributor to order a Jump Stitch Solenoid
(PN#340484-31), and a Color Change PCB (PN#001306-01) Order the solenoid
with a black connector as this solenoid is used for several types of
machines.
- If the resistance tests at 31 ohms, call to replace just the Color
Change PCB.
- To test the Jump Stitch, just sew a 5 inch Block- I. The vertical
column should be smooth with no creases down the center of the column.
THE MACHINE SEWS TWO STITCHES AND COLOR CHANGES. THIS KEEPS HAPPENING
FROM NEEDLE TO NEEDLE:
- Refer to pages 1 & 2 concerning the testing & tuning of the
Logic Voltage. It should be set at 5.00 to 5.03 Volts DC.
- If the tuning isn't possible or the error persists, call your
distributor to replace the Power Supply (PN# 344379-01)
THREAD BREAKS:
- Check the Needle Depth & Hook Timing first. See the Operator's
Manual on pages 3-17 through 3-31, for information on how to check &
adjust the two settings.
- Replace the current needle(s) as the tips of them will flatten out
after normal use. Sometimes there are burrs that form in the eye of the
needle due to extended use. Try to replace them on a regular basis. Try
once a week, if sewing eight hours a day.
- If the cone of thread that is being used is old or has been sitting on
the shelf for a long time it will be dry and brittle. If the cone must
be used, try spraying it with a pure silicone spray. The thread may
however still break. Replace the cone.
- Check the threading of the cone(s) all of the way to the eye of the
needle, and presser foot to make sure the thread is inside of all thread
guides.
- Check all thread guides for burrs or scratches. Use a piece of thread
to rub around inside of the thread guides to see if it catches on
anything such as a burr. Try using some emery cloth to smooth out burrs.
If the burrs are too deep, replace the thread guide.
- Check the Hook Assembly for burrs, and smooth it out if possible or
replace it. See Parts Manual (PN#110011-02), for part numbers.
- Check the Hook Support (Restraining Finger), for burrs. Try smoothing
them out with emery paper. If burrs are too deep replace the part. Make
sure it is positioned correctly. See pages 3-27 & 3-31 in the
Operator's Manual.
- Make sure the hook assembly is clean of excess thread and fuzz.
- Oil the hook every 4 actual hours of sewing. See page 3-11 of the
Operator's Manual.
- Check thread tensions to make sure they aren't too tight. If the
tensioner wheel moves in a jerky movement, loosen the knob, and check
the threading. Replace the felt pads under, and on top of the tensioner
wheel(s). (PN#342003-61).
- Check the Presser Foot Height. The Bottom ring of the Presser Foot
should be touching the cloth. If the Presser Foot is hitting too hard,
check the rubber dampers inside the bottom of the Needle case by
removing the black cover that has MELCO INDUSTRIES stamped on it.
Replace the dampers if they are damaged. See Parts Manual (PN#110011-02)
for the part numbers.
- Check the Needle Plate Hole for burrs on top, and underneath the hole.
- Check the Needle Plate Hole centering. Make sure that the needle
passes through the center the hole using a new needle.
- Check the Take Up Lever that is engaged to see if by picking up and
down on it, that it travels up and down more than 1/8 inch. If it does
there may be some teeth missing off of the Take Up Lever Drive Gear or
the individual Take Up Lever itself, or they may just be worn
- The other possibility is that the two gears aren't meshing enough. If
either of these errors are evident, call your distributor, as the
meshing of the gears should be performed by a trained technician.
- Needle breaks and Bird Nesting can cause the Hook Timing to be off.
Check the Hook Timing. If it needs adjustment see pages 3-17 through
3-31 in the Operator's Manual.
- Hitting a hoop may cause the Needle Depth to be incorrect. Make sure
that 1/2 to 3/4 of the eye of the needle shows inside of the hook. It
isn't recommended to use the Needle Gauge that was first supplied with
the machine.
- IMPORTANT: If sewing small lettering size .50 down to .25 in
height, make sure the density isn't too high. The default in EDS is 4.2.
This is 60 stitches per inch. At this density, there would be at least 3
needle strikes in the same hole in order to accommodate the 4.2 density.
- If a design is dense in stitches the same error may happen. This
happens especially if the operator has reduced a design in size.
- If the design is an Expanded Design, the stitch density can't be
reduced. See your EDS Manual for information about design density. Try
slowing the sewing speed down to 500 or 550 to see if the design can be
sewn. It may be a good idea anyway to slow the sewing speed down, due to
the intricacy of the design.
- The size of the eye of the needle can make a difference also. If the
thread is breaking too often, try using a larger eyed needle. For
instance: If a 70/10 size needle is being used, switch to a 75/11 or
80/12 to accommodate the thread, and the density of the design.
- Make sure thread tensions aren't too tight. Check the Front six
tensioners, and the Bobbin Case. If the Bobbin Tension keeps varying, it
can cause sewing quality and thread break problems. Replace the Bobbin
Case. See the Parts Manual for the part number, and call your
distributor for a replacement Bobbin Case. Part's Manual (PN#110011-02)
- Use adequate backing . An Inadequate amount of backing may allow part
of the garment to be pulled down into the Needle Plate Hole, and cause a
thread break. For instance: Don't use one piece of Tear Away backing to
sew a Sweat Shirt. Use at least 2 pieces of Cut Away Backing so the
cloth will be more stable.
FALSE THREAD BREAKS:
- Check the threading of the tensioner. Check the Take up spring to see
if it's broken. Call distributor if it persists.
LOOPING & BIRD NESTING:
- Looping can be caused by thread tensions that are too loose. This can
be caused by the Main Tensioners (Front Six), and by the Bobbin Case.
Looping can be on top or underneath the garment. Try turning the front
six tensioner knobs 1 or 2 turns at a time to see if the problem will go
away.
- The looping may vary as are result of the knobs being too loose on the
threaded tensioner post. If the knob moves too easily. remove the knob
by unscrewing it. Spread the threaded post slightly with a large slotted
screwdriver. This causes the threads of the post to better match the
threads of the tensioner knob so they don't move so easily.
- If the problem persists, use the Parts Manual (PN#110011-02), to
identify the Tensioner parts, and call your distributor to replace them.
- If the Bobbin Tension changes too often, or won't tighten, replace it.
Call your distributor to order one.
- The density of the design may affect this error also. If the design
density is too tight, the needle and thread will have a hard time
fitting through the hole the needle has to make. See your EDS Manual for
information on Design Density. The density when sewing lettering can
affect this error.
- If sewing small lettering, the 4.2 default is too high for lettering
ranging from .50 down to .25 letter height. The 4.2 density is 60
stitches per inch. If using a Premier Keyboard for the controller, see
pages 3-2 & 3-3 of the Premier Manual.
- The size of the eye of the needle can affect this problem. If the
density of the design is high or the cloth is to elastic, change up to a
larger eyed needle. For instance: If the needle currently being used is
a 70/10 size needle, switch to a 75/11 or even a 80/12 size needle.
- This larger eyed needle will allow for smoother passage of the thread
through the eye of the needle. Most thread being used is 40 gauge. If 30
gauge thread is being used, a larger eyed needle is required. Try an
80/12 size needle. When Metallic thread is being used, at least a 80/12
size needle should. If your garment permits, it is recommended to use a
90/14 size needle.
- Make sure the Hook Support (Restraining Finger) isn't to close to the
back of the indentation in the Hook Assembly. There should be some space
in between the front of the tab on the finger and the back of the
indentation. See pages 3-27 & 3-31 of the Operator's Manual for
information about the placement.
CAP FRAME IN:
- This error will show if trying to SET HOME with the Cap Frame Driver
mounted on the machine.
- If the Cap Frame driver isn't mounted on the machine, the Micro Switch
in the Cap Frame Mounting Block is damaged. Replace it with
(PN#282911-01)
THE CAP FRAME IS POPPING OFF OF THE CAP FRAME DRIVER OR THE DESIGN IS
BEING FLATTENED OUT NEAR AN EDGE OF THE CAP FRAME SEWING FIELD:
- Make sure the Cap Frame Driver Shaft is pushed in so the metal ring
touches the Black Mounting Block. Check the shaft by pulling on it to
make sure it won't pull out during sewing. Don't over tighten the thumb
screw under the Driver Shaft Mounting Block as the threads of the block
can be stripped through over tightening.
- From the surface of the back collar that touches the Driver Block to
the end of the shaft should be 1 7/8 inches. Loosen the set screw ,and
match this measurement if incorrect. Use a drop of Red Loctite (Loctite
222) on the threads of the set screw.
- The front surface of the front collar should be flush with the end of
the shaft. If the collar settings are incorrect on either end, the
sewing field "Mechanically", won't match the sewing field
according to the limits set up by the software.
- Check the cables attached to the Cap Frame Driver. They may be too
loose. If the black bar on the driver can be picked up off of the arc of
the driver, out of the groove it rides in, the cables can be too loose.
- There are two Cap Head Allen Screws at each end of the bar. Loosen
only two at one end of the bar. Pull the block at the end of the bar
towards the out side of the bar. Be careful not to bow the bar, as it
would be too tight then. If the cables can't be tightened any further,
replace the cables with (PN#402913-01).
- If the Driver seems to be in good shape, check the Needle Plate to see
if the Cap Frame has been causing any wear marks on the edges. If so,
turn the machine off. Have only the Cap Frame Driver mounted on the
pantograph. Pull the black pantograph bar forward until the front arc of
the Cap Frame Driver is just over the back two edges of the Needle Plate
- Center the driver in accordance with left & right. Check to see if
the front arc of the driver touches either the left or right of the
Needle Plate. If it does the Driver may be warped or the cables may be
too loose.
- If there is another Driver present check it in the same manner. If it
clears by at least 1/16 of an inch it is correct. Call your distributor
if a warped Cap Frame Driver is suspected. There may also be a problem
with the Cap Frame Driver Mounting Block. This will also require
information from your distributor.
- Make sure the Mounting Wheels on the Cap Frame Driver are not loose or
damaged. Replace if damaged.
- Check the Cap Frame for bends in it other than normal. Use the
Illustrated Parts Manual (PN#110011-02) to order parts for the Cap Frame
or Cap Frame Driver.
- Check the X Carriage on the pantograph to see if it has too much play
in the rollers. Use the information from the last paragraph in
"Possible Causes/Solutions" on page 12 of this guide to adjust
the play to where it is minimal.
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