Heli-Max HMXE0835 Maintenance Guide - Manual (Page 2)

Let’s start by checking each of the
propellers.
1: With the 1SQ on your work bench give
each of the propellers a spin. They should
all spin freely and rotate 3 to 4
revolutions. NOTE: It’s a good idea to
check this after each hard crash! If you
find one (or more) propellers that do not
spin freely, here are the steps to help
determine what might be causing this.
2: Push up on the bottom of the motor to
make sure the motor is fully seated upward
in the mount. In the event of a crash the
motor can shift downward in the mount,
pinching the propeller against the motor
mount.
3: The propeller can slide down the shaft
pinching the propeller against the motor can.
After following step two it’s best to check the
clearance of the parts. We have found that
the best distance between the prop and the
motor mount is about 1mm, or the width of a
hobby blade. You can use your hobby knife to
pry the blade away from the motor mount if
needed.