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Taking time to break in the motor now will result in increased motor performance and longevity. You can either secure
the motor to the fuselage during the break-in process or you can secure the motor to a test stand. If you secure the motor
to the fuselage, make sure to hold the fuselage securely during the break-in process.
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If you secure the motor to the fuselage during the break-in process, it's very important that you don't install the cowling.
This will ensure that the motor receives adequate cooling. Note that the motor is held to the fuselage using two M3 x 8mm
machine screws and two M3 flat washers.
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Install a smaller propeller onto the motor than the one included with the airplane. We suggest using a 5 x 5 or a 6 x 5
propeller to begin the break-in procedure. We don't suggest using the 7 x 4 propeller included for the break-in procedure
because it will put too much load on the motor before it's fully broken in.
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To start the break-in procedure, attach the motor wires directly to a fully charged 4 cell battery pack. A receiver battery
pack works great for this. Run the motor in 5 minute intervals for a total of 15 minutes runtime. This means run the motor
for 5 minutes, unplug the battery pack, let the motor cool for 5 minutes, and repeat this three times for a total of 15 minutes
runtime. This technique will begin to seat the motor brushes and prevent the motor from overheating.
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After you've completed the initial 15 minute break-in procedure, connect the motor to your ESC and the flight battery
you plan on using to fly the airplane. Run the motor in 1 to 2 minute intervals of varying throttle settings with increasingly
larger propellers until you reach the 7 x 4 propeller included with the airplane. During this process, let the motor cool
between runs and
do not
run the motor at full power for more than 15 seconds at a time.
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IMPORTANT
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To prevent current loss, we strongly suggest soldering the motor wires directly to the ESC motor wires.
We also suggest using a Dean's Ultra-Plug battery connector in place of the stock Tamiya connector likely preinstalled
on your flight battery and ESC.
After breaking in your motor, please read the important information below
about motor cooling and maintenance. Failure to follow these suggestions
can result in poor motor performance.
SECTION 6: BREAKING IN THE SUPER COBALT 400 MOTOR
IMPORTANT INFORMATION ABOUT MOTOR COOLING
The Super Cobalt 400 Direct Drive motor
must
have airflow through and over the motor to prevent overheating. It's
important that the air-exit holes be larger than the air-intake holes. We also strongly suggest that the flight battery and
ESC receive maximum cooling, too. This will allow your ESC and flight battery to work at maximum efficiency.
IMPORTANT INFORMATION ABOUT MOTOR MAINTENANCE
We do not recommend using spray cleaners or liquid solvents to clean the motor. Any dust and debris should be
removed using compressed air, either from an air-compressor or from a can.
Regularly check the motor brushes and springs. If they look worn, replace them immediately. Worn motor brushes will
cause short motor life and poor performance.
The part number for the replacement brushes and springs set is 131475.
