A customer complained that her machine was broken, but she did not want me to do a cleaning and adjusting. All she wanted was a repair. Hmmm. If a machine is broke, and all it needs is a cleaning and minor adjustment to work like new; does that qualify as a repair?
The biggest job in fixing embroidery machines is cleaning and adjusting it. Only occasionally, do you have to replace parts. Regardless, when a machine is fixed, I say it is repaired.
BERNINA
A true repair leaves a sewing machine or embroidery machine operating as close to brand new condition as possible. To achieve this level of performance, all the debris, gummy stuff, and encrusted gunk must be removed. Then the machine needs to be adjusted back to its original settings. When the machine sews like new, it is truly repaired.
When you begin a service, do a complete sewing test to find out how the machine is working. Listen. Look. Feel. Find the obvious problems and subtle clues to causes. Then after you open up the machine, follow those clues. Inspect possible causes, and use your senses sight, touch, and hearing to track down issues.
If it isn't broke, don't fix it. When cleaning and adjusting is all that is needed, just do it. When a part needs replacing, do that. While most mechanical replacements seem straight forward; electronics can be a bit more challenging.
Unplug the power cord first. Then the electronics usually wont bite. Circuit boards and electronics can fail, but with just a bit of caution, you can usually fix them.
Careful inspection of electrical, electronic, and computer parts is essential. Look for burn spots, mis-connections, pinched or twisted wires. Often a little wiggle or press down on a loose connection is all that is really needed.
Double check all the connections are solid and true. Sometimes they can be deceptively disconnected. Often a firm press can fix a problem. Sometimes a touch of solder can repair a loose connection. Even a piece of electrical tape can be useful to protect delicate wiring.
Static electricity is a technicians enemy. A single discharge can ruin a circuit board. Some manufacturers require elaborate static prevention measures to protect their circuitry. In the sewing machine repair shop, a static free mat is vital. Bernina requires the addition of a wrist band protector.
You will need special tools to work on certain electronic parts including non-metallic non-conductive probes, screw drivers, and adjusting tools. These are generally available through tool stores and certain specialty items may be purchased through the embroidery machine manufacturer or their dealer network.
More advanced embroidery equipment and sewing machines will use plug n play components. These are easily removed and replaced.
Diagnosis is an art, but a variety of resources can be helpful. An official service manual, an authorized technician specializing in you brand, or the manufacturers technical support line may offer invaluable help.
When you are confident you have found the problem, get a new component. You may have to wait for the new component a few days, so do not remove the old one until the new one arrives. Then remove and replace the component almost in a single motion. This will make it easier to keep track of all those connective wires.
Repair Procedures For Embroidery Machines
Dr. David Trumble's Free 7 Steps To Peak Performance is yours now for sewing machine repair. Get the secrets to sewing machine repair myself.
BERNINA
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