How to Repair the Servo Gears?

Posted on 20 Sep 2012 by  


Do you have the experience that the servo stops working properly such as jamming or improper sound? It doesn't mean you need to buy a new one, it is waste of money. The problem may only due to the damage of gear inside your servo. Therefore today RC FEVER will introduce how to repair the servo gear. It can save much money and also can enjoy the repairing process.

Firstly what you need to prepare for? You need the suitable size of driver such as screwdriver and hex driver, some plastic type. You can also prepare some white grease on the gear to make it smooth. Of course, the most important thing you need is a new set of servo gear.

Remove the servo arm since it is attached to the inside parts, you can’t open the cover if you haven’t take the servo arm out.

Put a small piece of tape on the back of your servo. This will hold the back cover on while you’re replacing the gears. If it comes off, it’s near impossible to get everything put back together correctly.

Use the screwdriver to remove the four screws from the back and take the front cover off being careful not to disturb the order of the gears.

Note how the gears are arranged so you’ll be able to put it back together. If you don’t have a similar servo to refer, you can take a picture for record.

Remove the gears from the case. If any of them have missing teeth, make sure you take them out of the servo or they may cause problems. Clean the inside of the servo case using a tissue.

You might also want to give the bearings a quick look to make sure they’re still running smooth and add a quick dab of grease.

Put the pin and bearings into the new main gear and assemble the rest of the gears on the servo pins and case. Be careful to assemble the gears in the opposite order to which you disassembled them. Refer to your spare servo, notes or pictures.

Before putting the case back together, you’ll need to grease the gears. Once you everything has been greased and all the pins and gears are in their respective holes, it’s time to close everything up and screw it back. Don’t over tighten the case screws as it can cause the gears to become jammed, don’t force the case together, when everything is together properly is should smoothly slide into place.

When everything’s done, plug it back into your receiver, turn on your radio and check to ensure everything’s working okay, attach the servo arm in the neutral servo position, so now would be a good time to do so.