Assembly Instructions - Page 10, Step 8
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In this step, we "center" the servo prior to installing it in the car.
Step 8
This step shows a sport-level electronic speed control (ESC) in use and "standard" radio gear. Your radio equipment will probably be different but the idea is the same. You must connect the servo you plan to use and an ESC to your receiver, then connect a charged battery pack to your ESC. Turn on your radio (always turn on your radio first), then the ESC switch and set the radio steering trim to zero. See your radio instruction manual if you do not know how to change the steering trim.
Note the "standard" servo - you don't need special high-speed or high-torque servos for the Micro! A smaller servo will save weight and possible enhance performance, but if you don't have one handy leave those to the racers.
Install the servo arm noted in the table on page 10 of the manual on the servo. Make sure it points straight up, or as close as possible, as shown in the picture below. If it doesn't point straight up you can use the radio steering trim later to correct the steering. Be sure to use the screw that came with the servo to attach the servo arm!
Next, cut the servo mounting "ears" that are on the case. Don't worry about "ruining" the servo, a replacement case can always be found or ordered at your local hobby shop if you decide to replace the servo or use this servo in another car in the future.
See below for what happens if you don't cut off your servo mounts. The belt will rub on the mount and cause drivetrain binding, slowing your car down.
This is what a properly mounted servo looks like with the mount cut off.
In the next step we'll install the servo.