TrakPower MS Series Sensored Brushless Motors - Manual (Page 3)

General Maintenance
General maintenance is recommended for brushless motors to ensure they are operating
effi ciently and to prolong the life of the motor. Prior to maintenance, the motor should be
removed from the vehicle. This includes de-soldering the three main power wires (A, B and C),
disconnecting the sensor wire and removing the pinion gear.
Inspect the outside of the motor for damages including the motor shaft, can, sensor port and
motor tabs. Also inspect power and sensor wires for damage. Use a cloth to wipe off any debris
from the motor. Compressed air can be used to lightly blast the motor to remove any stubborn
dirt/dust from hard to reach areas. A good shot of air is usually enough to clean out the inside
of the motor without disassembly. Be careful not to blast the bearings with air. This could force
dirt and debris into the bearing causing premature failure, unwanted friction and heat build-up.
IMPORTANT: Disassembly of motor will void warranty.
To further inspect for damages or to replace parts the motor must be disassembled. Start by
using a 2.0mm hex driver to remove the three screws located on the motor’s front plate. Once
the screws are removed, the front plate and end bell can be removed. Note: The sensor board
and timing ring will remain attached to the end bell until the three screws securing it are
removed. It is not necessary to remove these three screws unless replacing the sensor board
or adjusting the timing. To remove the rotor, use a pair of pliers to grip the shaft and pull out.
Below is an exploded view for reference.
Inspect all surfaces for damage. Spin bearings to make sure they rotate freely. Use compressed
air to remove any dust and debris from inside the motor. If compressed air is not enough to
remove the debris, use electronic motor spray or contact cleaner and spray the inside of the
motor until the runoff is clear. Allow the motor to completely dry out before re-assembly.
Upon re-assembly, be sure that the motor can screws are snug. DO NOT overtighten. Once
general maintenance is completed, use a drop of light bearing oil on the front and rear bearing
of the motor. Follow the installation steps at the beginning of this manual to re-install the motor.