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- Elna DEX 704 service and repair
Elna DEX 704 service and repair
Removing the needle plate, push up the clip.
Sliding the needle plate out.
If your needle plate lost a pin, take a sewing needle of the same length and super glue it in again.
Undo the four screws to remove the bottom cover
Bottom cover removed showing the moving parts of the machine
Cleaning the bottom of the machine
Vacuum and clean the machine.
Clean the tension units out
Ball joints need some sewing machine oil
Switch switch, your machine won't run if you cover is not closed properly, There are more safety switches
Pushing both pins in allows a connection and your machine will run. There are more safety switches
Safety switch in action
This lever should be in the up position for the machine to work
This lever should be pushed up position for the machine to work
A repair on your feed lfter lever, Must be strengthend with wire. Epoxy glue is not enough
The sleeve in the middle of the lever must not be left out.
This lever can got out of position and your safety swithc won't work. Your machine won't run.
Play on your cutter mechanism can cause the cutters no to work well and some pins need tightening. I'm showing to of the pins thats likely to develop play
The grub screw must be loosened and the pin pushed to the right, you can use a screw driver
The middle pin must also be shifted to the right
The moving parts must be lubricated.
DSCF3342.JPG
The safety swiches in action, and machine is making a knocking noise. I'll have to open the covers to find the problems
Using a needle to remove screw plugs
Undo the two screws
Removing the screw for the cotton bar
Removing plug and screw on overlocker cover
Open the light door to pull cover back
Elna overlocker cover pulle back
Cleaning all the dirt fluff and dirt out
Cleaning the tension units
Oiling the needle bar shaft
Presser bar oiling
Oiling the upper shafts moving parts
Getting to some moving parts from the back of the Elna overlocker
Oiling moving parts behind the Elna overlocker's motor
Oiling the feed mechanism for the feed dog
The two grub screw go loose and needs tightening, push the dial and blade together and tighten screw. Just check that the blade can still lock in. The grub screw normally aligns with pin.
Oiling the cutting mechanism
Oiling the lower blade arm, they get sticky and the blades won't cut well.
Clean the groove behind the blade, it can stop it from touching the other blade
Removing the front cover
Removing the thread guide
Removing the thread guide for the loopers
Loosening a screw for the side and front covers
The looper thread take up lever is missing a cotton catching clip. Your overlocker won't sew well without it
Pull away the plastic cover and undo the two screws on the take up lever guide.
Lower the lower screw
Catching the loser guide
Pulling the differential and stitch lenght levers out
Loosening a side screw
Broken stitch length lever
Pulling the tension release lever cap off
Found the cause of the knocking noise. The bush moved down a bit and the presser bar arm is hitting it
Found the cause of the knocking noise. The bush moved down a bit and the presser bar arm is hitting it
Loosen the grub screw
Push the bush up slightly
Tigthen the grub screw
Ah! found the little clip for the take up
Fit it from the back
Clipping the cotton catcher on
Correctly fitted clip
Leaving enough space for the cotton to slide past
Repair the cracked stitch length lever
Cut a peice of wire and lay it across the cracked lever
Cut a peice of wire and lay it across the cracked lever and melt it in wiht a soldering iron
Repaired stitch length lever
A guide from the front cover is loose and can be repaired with super glue
If you don't push levers in straigh they will crack, Push them in before the cover goes down completely
The levers should be pushed in completely
Tighten up the side screw
Fit the lower cover
Fit the thread guide
Place the guide first
Screw in the allen key bolt
Now fit and tighten the whole bracket
Push the back cover on again
Broken spool pin on cotton stand
Drill a little hole to a matching screw
Drill a hole on the broken spool pin
You can use a nale to make a punch hole
Hole drilled on both sides
Get a screw a bit bigger than the whole and cut it
Or us a craft tool to cut it
The final pin
Screw it into the bottom half.
Use plyers if to tight
Fitted screw
A bit of super glu before screwing on the spool pin
The spool pin as good as new
Always make sure the left needle is higher
Removing the cap the correct th tension settings, Before doing any settings here. Make sure he tension unit is clean.
Setting the tension on the left needle
The four holes for setting tension
Well balanced overlock stitch
 | Date: Dec 31, 2002 11:00 AM Number of Comments on Photo:0 |
Sliding the needle plate out.
 | Date: Dec 31, 2002 11:00 AM Number of Comments on Photo:0 |
If your needle plate lost a pin, take a sewing needle of the same length and super glue it in again.
 | Date: Dec 31, 2002 11:00 AM Number of Comments on Photo:0 |
Undo the four screws to remove the bottom cover
 | Date: Dec 31, 2002 11:00 AM Number of Comments on Photo:0 |
Bottom cover removed showing the moving parts of the machine
 | Date: Dec 31, 2002 11:00 AM Number of Comments on Photo:0 |
Cleaning the bottom of the machine
 | Date: Jan 1, 2006 12:00 AM Number of Comments on Photo:0 |
Vacuum and clean the machine.
 | Date: Jan 1, 2010 12:00 AM Number of Comments on Photo:0 |
Clean the tension units out
 | Date: Jan 1, 2010 12:00 AM Number of Comments on Photo:0 |
Ball joints need some sewing machine oil
 | Date: Jan 1, 2010 12:02 AM Number of Comments on Photo:0 |
Switch switch, your machine won't run if you cover is not closed properly, There are more safety switches
 | Date: Jan 1, 2010 12:03 AM Number of Comments on Photo:0 |
Pushing both pins in allows a connection and your machine will run. There are more safety switches
 | Date: Jan 1, 2010 12:03 AM Number of Comments on Photo:0 |
Safety switch in action
 | Date: Dec 31, 2009 11:03 AM Number of Comments on Photo:0 |
This lever should be in the up position for the machine to work
 | Date: Jan 1, 2010 12:04 AM Number of Comments on Photo:0 |
This lever should be pushed up position for the machine to work
 | Date: Jan 1, 2010 12:04 AM Number of Comments on Photo:0 |
A repair on your feed lfter lever, Must be strengthend with wire. Epoxy glue is not enough
 | Date: Jan 1, 2010 12:06 AM Number of Comments on Photo:0 |
The sleeve in the middle of the lever must not be left out.
 | Date: Jan 1, 2010 12:06 AM Number of Comments on Photo:0 |
This lever can got out of position and your safety swithc won't work. Your machine won't run.
 | Date: Dec 31, 2009 11:07 AM Number of Comments on Photo:0 |
Play on your cutter mechanism can cause the cutters no to work well and some pins need tightening. I'm showing to of the pins thats likely to develop play
 | Date: Dec 31, 2009 11:09 AM Number of Comments on Photo:0 |
The grub screw must be loosened and the pin pushed to the right, you can use a screw driver
 | Date: Jan 1, 2010 12:09 AM Number of Comments on Photo:0 |
The middle pin must also be shifted to the right
 | Date: Jan 1, 2010 12:10 AM Number of Comments on Photo:0 |
The moving parts must be lubricated.
 | Date: Jan 1, 2010 12:11 AM Number of Comments on Photo:0 |
DSCF3342.JPG
 | Date: Jan 1, 2010 12:13 AM Number of Comments on Photo:0 |
The safety swiches in action, and machine is making a knocking noise. I'll have to open the covers to find the problems
 | Date: Dec 31, 2009 11:14 AM Number of Comments on Photo:0 |
Using a needle to remove screw plugs
 | Date: Jan 1, 2010 12:16 AM Number of Comments on Photo:0 |
Undo the two screws
 | Date: Jan 1, 2010 12:16 AM Number of Comments on Photo:0 |
Removing the screw for the cotton bar
 | Date: Jan 1, 2010 12:17 AM Number of Comments on Photo:0 |
Removing plug and screw on overlocker cover
 | Date: Jan 1, 2010 12:17 AM Number of Comments on Photo:0 |
Open the light door to pull cover back
 | Date: Jan 1, 2010 12:18 AM Number of Comments on Photo:0 |
Elna overlocker cover pulle back
 | Date: Jan 1, 2010 12:18 AM Number of Comments on Photo:0 |
Cleaning all the dirt fluff and dirt out
 | Date: Jan 1, 2010 12:19 AM Number of Comments on Photo:0 |
Cleaning the tension units
 | Date: Jan 1, 2010 12:19 AM Number of Comments on Photo:0 |
Oiling the needle bar shaft
 | Date: Jan 1, 2010 12:20 AM Number of Comments on Photo:0 |
Presser bar oiling
 | Date: Jan 1, 2010 12:20 AM Number of Comments on Photo:0 |
Oiling the upper shafts moving parts
 | Date: Jan 1, 2010 12:20 AM Number of Comments on Photo:0 |
Getting to some moving parts from the back of the Elna overlocker
 | Date: Jan 1, 2010 12:20 AM Number of Comments on Photo:0 |
Oiling moving parts behind the Elna overlocker's motor
 | Date: Jan 1, 2010 12:21 AM Number of Comments on Photo:0 |
Oiling the feed mechanism for the feed dog
 | Date: Jan 1, 2010 12:22 AM Number of Comments on Photo:0 |
The two grub screw go loose and needs tightening, push the dial and blade together and tighten screw. Just check that the blade can still lock in. The grub screw normally aligns with pin.
 | Date: Jan 1, 2010 12:24 AM Number of Comments on Photo:0 |
Oiling the cutting mechanism
 | Date: Jan 1, 2010 12:25 AM Number of Comments on Photo:0 |
Oiling the lower blade arm, they get sticky and the blades won't cut well.
 | Date: Jan 1, 2010 12:25 AM Number of Comments on Photo:0 |
Clean the groove behind the blade, it can stop it from touching the other blade
 | Date: Jan 1, 2010 12:25 AM Number of Comments on Photo:0 |
Removing the front cover
 | Date: Jan 1, 2010 12:28 AM Number of Comments on Photo:0 |
Removing the thread guide
 | Date: Jan 1, 2010 12:28 AM Number of Comments on Photo:0 |
Removing the thread guide for the loopers
 | Date: Jan 1, 2010 12:28 AM Number of Comments on Photo:0 |
Loosening a screw for the side and front covers
 | Date: Jan 1, 2010 12:28 AM Number of Comments on Photo:0 |
The looper thread take up lever is missing a cotton catching clip. Your overlocker won't sew well without it
 | Date: Jan 1, 2010 12:29 AM Number of Comments on Photo:0 |
Pull away the plastic cover and undo the two screws on the take up lever guide.
 | Date: Jan 1, 2010 12:29 AM Number of Comments on Photo:0 |
Lower the lower screw
 | Date: Jan 1, 2010 12:30 AM Number of Comments on Photo:0 |
Catching the loser guide
 | Date: Jan 1, 2010 12:30 AM Number of Comments on Photo:0 |
Pulling the differential and stitch lenght levers out
 | Date: Jan 1, 2010 12:31 AM Number of Comments on Photo:0 |
Loosening a side screw
 | Date: Jan 1, 2010 12:31 AM Number of Comments on Photo:0 |
Broken stitch length lever
 | Date: Jan 1, 2010 12:32 AM Number of Comments on Photo:0 |
Pulling the tension release lever cap off
 | Date: Jan 1, 2010 12:32 AM Number of Comments on Photo:0 |
Found the cause of the knocking noise. The bush moved down a bit and the presser bar arm is hitting it
 | Date: Jan 1, 2010 12:33 AM Number of Comments on Photo:0 |
Found the cause of the knocking noise. The bush moved down a bit and the presser bar arm is hitting it
 | Date: Dec 31, 2009 11:33 AM Number of Comments on Photo:0 |
Loosen the grub screw
 | Date: Jan 1, 2010 12:33 AM Number of Comments on Photo:0 |
Push the bush up slightly
 | Date: Jan 1, 2010 12:34 AM Number of Comments on Photo:0 |
Tigthen the grub screw
 | Date: Jan 1, 2010 12:34 AM Number of Comments on Photo:0 |
Ah! found the little clip for the take up
 | Date: Jan 1, 2010 12:35 AM Number of Comments on Photo:0 |
Fit it from the back
 | Date: Jan 1, 2010 12:36 AM Number of Comments on Photo:0 |
Clipping the cotton catcher on
 | Date: Jan 1, 2010 12:36 AM Number of Comments on Photo:0 |
Correctly fitted clip
 | Date: Jan 1, 2010 12:37 AM Number of Comments on Photo:0 |
Leaving enough space for the cotton to slide past
 | Date: Jan 1, 2010 12:37 AM Number of Comments on Photo:0 |
Repair the cracked stitch length lever
 | Date: Jan 1, 2010 12:38 AM Number of Comments on Photo:0 |
Cut a peice of wire and lay it across the cracked lever
 | Date: Jan 1, 2010 12:39 AM Number of Comments on Photo:0 |
Cut a peice of wire and lay it across the cracked lever and melt it in wiht a soldering iron
 | Date: Jan 1, 2010 12:39 AM Number of Comments on Photo:0 |
Repaired stitch length lever
 | Date: Jan 1, 2010 12:40 AM Number of Comments on Photo:0 |
A guide from the front cover is loose and can be repaired with super glue
 | Date: Jan 1, 2010 12:40 AM Number of Comments on Photo:0 |
If you don't push levers in straigh they will crack, Push them in before the cover goes down completely
 | Date: Nov 1, 2011 12:04 AM Number of Comments on Photo:0 |
The levers should be pushed in completely
 | Date: Nov 1, 2011 12:05 AM Number of Comments on Photo:0 |
Tighten up the side screw
 | Date: Nov 1, 2011 12:01 AM Number of Comments on Photo:0 |
Fit the lower cover
 | Date: Nov 1, 2011 12:02 AM Number of Comments on Photo:0 |
Fit the thread guide
 | Date: Nov 1, 2011 12:02 AM Number of Comments on Photo:0 |
Place the guide first
 | Date: Nov 1, 2011 12:06 AM Number of Comments on Photo:0 |
Screw in the allen key bolt
 | Date: Nov 1, 2011 12:07 AM Number of Comments on Photo:0 |
Now fit and tighten the whole bracket
 | Date: Nov 1, 2011 12:08 AM Number of Comments on Photo:0 |
Push the back cover on again
 | Date: Nov 1, 2011 12:10 AM Number of Comments on Photo:0 |
Broken spool pin on cotton stand
 | Date: Nov 1, 2011 12:28 AM Number of Comments on Photo:0 |
Drill a little hole to a matching screw
 | Date: Nov 1, 2011 12:29 AM Number of Comments on Photo:0 |
Drill a hole on the broken spool pin
 | Date: Nov 1, 2011 12:30 AM Number of Comments on Photo:0 |
You can use a nale to make a punch hole
 | Date: Nov 1, 2011 12:30 AM Number of Comments on Photo:0 |
Hole drilled on both sides
 | Date: Nov 1, 2011 12:31 AM Number of Comments on Photo:0 |
Get a screw a bit bigger than the whole and cut it
 | Date: Nov 1, 2011 12:31 AM Number of Comments on Photo:0 |
Or us a craft tool to cut it
 | Date: Nov 1, 2011 12:32 AM Number of Comments on Photo:0 |
The final pin
 | Date: Nov 1, 2011 12:34 AM Number of Comments on Photo:0 |
Screw it into the bottom half.
 | Date: Nov 1, 2011 12:34 AM Number of Comments on Photo:0 |
Use plyers if to tight
 | Date: Nov 1, 2011 12:35 AM Number of Comments on Photo:0 |
Fitted screw
 | Date: Nov 1, 2011 12:35 AM Number of Comments on Photo:0 |
A bit of super glu before screwing on the spool pin
 | Date: Nov 1, 2011 12:36 AM Number of Comments on Photo:0 |
The spool pin as good as new
 | Date: Nov 1, 2011 12:36 AM Number of Comments on Photo:0 |
Always make sure the left needle is higher
 | Date: Nov 1, 2011 12:39 AM Number of Comments on Photo:0 |
Removing the cap the correct th tension settings, Before doing any settings here. Make sure he tension unit is clean.
 | Date: Nov 1, 2011 12:45 AM Number of Comments on Photo:0 |
Setting the tension on the left needle
 | Date: Nov 1, 2011 12:45 AM Number of Comments on Photo:0 |
The four holes for setting tension
 | Date: Nov 1, 2011 12:47 AM Number of Comments on Photo:0 |
Well balanced overlock stitch
 | Date: Nov 1, 2011 12:47 AM Number of Comments on Photo:0 |