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Main Motor Care and Installing the Optional Main Motor Heat Sink
The 180 motors used to power your Blade™ CX are of the closed end-bell variety and do not require any special
maintenance. We do, however, suggest that you allow the motors to cool to near ambient temperature between
flights/battery pack changes to prevent accelerated motor wear due to excess motor heat.
You will find the performance and life of the 180 main motors to be very good, however, installation of the optional
Main Motor Heat Sink (EFLH1208) can help to further improve motor cooling during flight, resulting in improved
motor performance and longer motor life.
Installing the main motor heat sink takes only a few minutes following these steps:
• Installation of the main motor heat sink will require that you to temporarily remove the right-hand main motor
from the main frame. This is easily accomplished by removing the two motor mounting screws found on the
bottom of the main frame.
• With the right-hand main motor removed from the frame, you can press the main motor heat sink into place
near the top/end of the left-hand main motor. We recommend that you use Heat Sink Compound (EFLM1913) on
any surfaces of the heat sink that make contact with the motor case to further improve the effectiveness of the
heat sink. The wider end of the heat sink (more fins) must be placed toward the front of the helicopter.
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