How To: Clean and maintain your brushless motor
- CLEAN THE CHASSIS AND SPEED CONTROL. After you’ve finished cleaning the chassis, make sure that the speed control isn’t loose. ...
- INSPECT THE WIRING. Use heat-shrink tubing or liquid electrical tape to repair damaged wire insulation. ...
- REMOVE THE MOTOR. Wipe the motor thoroughly with a rag. Use a toothbrush to clean the ball bearings. ...
- DISASSEMBLE THE MOTOR. Brushless motors have very few parts, so it’s easy to take them apart for cleaning. ...
- CLEAN THE MOTOR. Just as with regular brushed motors, dirt can accumulate inside a brushless motor. ...
- CLEAN THE BEARINGS. Remove the rear bearing from the motor for cleaning. ...
- INSPECT THE MOTOR. Check the clean and disassembled motor pieces for signs of wear. Make sure that the windings in the can aren’t loose, chafed, or shiny.
- LUBRICATE THE BEARINGS. The motor spray washed away the factory-applied lubricant, so you’ll need to re-lubricate the bearings.
- INSPECT THE BEARINGS. Before you rebuild the motor, check the front and rear ball bearings to ensure that they spin freely.
- REBUILD THE MOTOR. You have cleaned and inspected the motor’s major components and lubed the bearings, and it’s now time to rebuild it.
- REINSTALL THE MOTOR. Make sure that the gear mesh is set correctly, and use zip-ties to secure the power leads and the sensor wires and to keep them away ...
Can a brushless motor be repaired?
If the brushless motor fails any of the tests, you will probably have to get it repaired or replaced. Your first step should be to contact Global Electronic Services. At Global Electronic Services, we are highly skilled at all types of motor repair, including brushless repair, and if your motor can be repaired, we can repair it.
How does a brushless motor work?
The way a brushless motor works is by using electromagnets, rather than brushes, to spin the motor. The magnets are attached to the motor’s bell and push and pull the motor as necessary. Electromagnets can also be used to generate power. When you spin a motor by hand it generates power.
How do you dry test a brushless motor?
Here are the steps you can take to dry test your brushless motor. Disconnect the motor from the Electronic Speed Controller (ESC) and wind it up with a variable-speed battery-operated drill, holding the stationary part and the three lead wires isolated. Run it at full speed for a couple of minutes.
Is it worth it to repair a broken motor?
It only takes one motor being junked and replaced because of a broken shaft to exceed the cost of a repairable motor. I have repaired many brushless motors for customers. There is no mystery to these motors. The problem is worth to repair. Rewinding a motor is not that tricky. I rewind a few the procedure is not cost effective to the consumer.
What causes a brushless motor to fail?
In brushless motors will fail once the bearing has been worn out due to the previously discussed factors, but in addition; residual unbalancing and bearing load have an impact on bearing the life.
How do you rewire a brushless motor?
3:5810:09How to Rewind Brushless Motors | Learn to fix or modify your electric ...YouTubeStart of suggested clipEnd of suggested clipSome of you can use a wire cutter or something similar to speed up the process. While you areMoreSome of you can use a wire cutter or something similar to speed up the process. While you are unwinding the old wire. Just notice how many turns are in each pole.
How do you service a brushless motor?
0:202:11How to Clean a Brushless Motor - YouTubeYouTubeStart of suggested clipEnd of suggested clipUse your can of compressed air to blow dust and debris from inside the motor gently brush the timingMoreUse your can of compressed air to blow dust and debris from inside the motor gently brush the timing assembly. Then clean with compressed. Air.
What kills a brushless motor?
Current is what ultimately leads to the destruction of a brushless motor. Increasing the amount of current a brushless motor is consuming comes with a cost. The cost is heat. Too much heat in your motor will lead to failure of the motor windings.
How do you troubleshoot a brushless DC motor?
0:431:56Troubleshooting a Brushless DC Motor - YouTubeYouTubeStart of suggested clipEnd of suggested clipTogether if there is not a need for greater force. Then the motor needs to be replaced. Next performMoreTogether if there is not a need for greater force. Then the motor needs to be replaced. Next perform the same test with black lead connected to the red. Lead. Then test the red and blue leads.
Can BLDC motor be repaired?
If the damage is only to the rotor magnets, then yes it's a fairly easy replacement.
Can you clean a brushless motor?
Just as with regular brushed motors, dirt can accumulate inside a brushless motor. We do not recommend the use of motor spray to clean the windings inside the motor can (stator). Racers who use motor spray simply make any problems worse. Instead, use a small brush and light air pressure to clean inside the motor.
Can you oil a brushless motor?
It's true that we don't have to lubricate brushless motors with ball bearings. Ball bearings are sealed with grease inside, so applying oil doesn't really help much but actually could be counter-productive as well as making a mess because oil will attract dusts and dirt.
How long do brushless motors last?
If you are looking for a motor with a long life expectancy, consider a brushless motor. Brushed motor life is limited by the brush type and can attain 1,000 to 3,000 hours on average, while brushless motors can attain tens of thousands of hours on average, as there are no brushes to wear.
Can you Overvolt a brushless motor?
Your power-supply can be higher than the motor's continuous voltage rating, but it cannot be higher than the insulation breakdown voltage rating. On top of that, you need to be sure that you never exceed the motor's peak current, maximum velocity or temperature rating.
How do you know if your RC motor is burnt out?
2:229:43How to Determine if your Brushless Motor is Dead (Electrically or ...YouTubeStart of suggested clipEnd of suggested clipEffect cogging is when you have the magnet inside of your motor. Interacting with the iron. Core.MoreEffect cogging is when you have the magnet inside of your motor. Interacting with the iron. Core. That's found inside your motor as well that's right on the stator.
Why is my brushless motor cogging?
One common cause of cogging is that the startup current settings are not set appropriately. This is especially true in applications where startup occurs under load. Increasing the power going into the motor at startup can give the motor the 'extra kick' that it needs to avoid cogging.
What are the 3 wires on a brushless motor?
The two wires of the brushed dc motor can be thought of as forward and reverse. The three wires of brushless can be thought of as 1, 2 and 3. Going forward would be this sequence 1-2, 2-3, 3-1, 1-2, etc. Going backwards would be 1-3, 3-2, 2-1, 1-3, etc.
Can you reverse polarity on a brushless motor?
Swapping any two of the wires connecting a brushless DC motor to its ESC will reverse the direction it spins. Despite the name BLDC which implies that the motor runs on DC power, each of the three wires (connected to one of the three phases in the motor) is driven by the ESC with a phase-shifted AC waveform.
How do you test a 3 wire brushless motor?
Label the three motor wires, making sure to continue to isolate them from one another, as 1, 2 and 3. Now connect your voltmeter to an AC range and connect two of the wires to terminals 1 and 2. Wind the drill at full speed again and note the AC voltage. Repeat this process with terminals 2 and 3 and 1 and 3.
Can you reverse a brushed motor?
Some brushed motors are timed (optimized) to run better in one direction than another by rotating the can a few degrees one way or another. If you reverse the direction they will run just fine, but not be able to put out as much power (rpm) in the new direction.
How does a brushless motor work?
The way a brushless motor works is by using electromagnets, rather than brushes, to spin the motor. The magnets are attached to the motor’s bell and push and pull the motor as necessary. Electromagnets can also be used to generate power. When you spin a motor by hand it generates power.
How to connect a motor to a drill?
Label the three motor wires, making sure to continue to isolate them from one another, as 1, 2 and 3. Now connect your voltmeter to an AC range and connect two of the wires to terminals 1 and 2. Wind the drill at full speed again and note the AC voltage. Repeat this process with terminals 2 and 3 and 1 and 3.
Can you spin a motor by hand?
When you spin a motor by hand it generates power. Many modern generators use this same process to create power. If any two of the wires are shorted together, you will experience resistance if you try to spin the motor by hand. If you separate all the wires, the motor should have no problem spinning when hand-propelled.
Can you check if a motor is no load?
If your motor passes all of these tests, it should be good to go. However, before putting it back into operation , you may want to check the no-load current of the motor and compare it with the specs provided by the manufacturer. This will allow you to identify a shorted turn in the motor or a winding that has shorted out.
Can you test brushless motors yourself?
Although it’s a good idea to schedule regular maintenance for all of your electronics, if you can test your brushless motors yourself, you may be able to save your business some service costs.
