Motor covered in mud

How to Clean Quadcopter Motors – RC Cleaning

Introduction:

Here are some ways to clean your motors to keeps them at their peak performance. Dirt and mud may get into the motors after a nasty crash and causes performance to drop especially if sand gets into the magnets. Let’s get started with some quick RC cleaning tips!

clean_motors_quadcopter

It's is very important to have your motors clean before every flight. I tend to clean them immediately after I get back from the field, so the next day I can immediately be back in the air.

*It may be obvious but please make sure the battery is unplugged during the cleaning process!

Things you will need:


  1. Toothbrush
  2. Compressed air
  3. Isopropyl alcohol or distilled water
  4. C-clip remover or thin flat head
  5. Toothpick or some sort of picking tool
  6. OPTIONAL: Brushless motor oil

Basic RC Cleaning:

This is for motors with dirt that is mostly on the outside of the motor bell.

  1. What I usually like to do first is clean the dirt underneath the base of the motors which gets trapped in the ventilation holes. I use something sharp like a toothpick to pick the dirt out.
  2. I then use a toothbrush to scrub the excessive dirt out. Make sure the motor is pointed downwards so the dirt does not get back into the motor bell.
  3. Some loose dirt around the base can be removed with a blast of compressed air.

Super Dirty RC Cleaning:

This is for motors with mud around motor the bell and in the copper windings

  1. Complete the basic cleaning above
  2. To get the dirt that's trapped in the motor pretty deep, you will need to take the motor apart by removing the c clip holding the motor together. Simply use a c-clip remover or use a thin flat head screwdriver to flick the clip off. Make sure not to lose it. I recommend doing this process in a clear plastic bag.
  3. Pull the base and bell apart. You should see mud stuck onto the copper windings and gravel attached to the magnets.
  4. To clean the mud off the windings, I like to dip the whole stator in isopropyl alcohol and scrub with a toothbrush. If isopropyl alcohol is not available, distilled water will also work. You can place the bell in the solvent as well. This process will not damage the motor.
  5. To remove the gravel that are magnetically attached to the magnets, you can use a blast of 120psi of air. If you don't have a compressor you can only try to flick the gravel off with a toothbrush.
  6. We then need to dry the excess solvent off, with compressed air or just letting it dry over time.
  7. Install everything back including the c-clip

(OPTIONAL STEP):

I would recommend purchasing a bottle of brushless bearing oil motor from Banggood. The product is called, "Tarot High-Speed Bearing Oil Lubricants TL2781". Apply a drop of the solution with the needle syringe that is included, directly to the bearings and spin the bell a few times.

Do not use WD-40 as the bearing oil!

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