Heli-Max HMXE7453 User Manual

™

AXE CP CARBON FIBER TAIL BOOM UPGRADE INSTALLATION

REMOVING THE T AIL ASSEMBL Y

❏ Mark the motor where the positive (red) and

negative (black) wires connect. Being careful not
to unsolder the capacitor from the motor, unsolder
the positive and negative wires from the motor.
Straighten the two tail motor wires and align them
with the hole in the plastic tail motor mount.

INSTALL THE CARBON FIBER TAIL BOOM

❏ Use alcohol and a paper towel to clean the

aluminum pin. Make note that half of the pin is
smooth and half of the pin is knurled. The smooth
side slides into the plastic motor mount and the
knurled end slides into the tail boom. Mix a small
amount of 6 minute epoxy. Apply the epoxy to the
inside of the plastic motor mount and to the smooth
side of the aluminum pin. Inser t the pin into the
motor mount as shown. Remove an y excess epo xy
with a paper towel and alcohol. The pin does not
get glued into the boom until later.

❏ Loosen the four Phillips screws on the main

frame as shown. Rotate and pull back to remove
the tail boom from the helicopter. The two long tail
motor wires will remain on the helicopter but pull
free from the tail boom. Using a 1/16" [1.5mm] he x
wrench, remove the screw from the bottom of the
tail boom. Remove the tail motor mount by pulling
back while rotating the gearbox.

SWAPPING COMPONENTS FROM THE OLD
TAIL ROTOR MOUNT TO THE NEW TAIL
ROTOR MOUNT.

❏ Remov e the silicone tubing from the left side of the

tail rotor shaft. Pull the tail rotor shaft out of the gear
box. Using a 1/16" [1.5mm] hex wrench, carefully
push both bearings out of the tail rotor mount.

❏ Use a small Phillips screwdriver to remove the

two motor screws and re-install the motor into the
new motor mount. Slide the tail rotor shaft through
the bearings and re-install the silicone tubing as
shown above.

any excess epoxy with a paper towel and alcohol.
Allow the epoxy to cure undisturbed. Re-solder the
positive and negative wires to the motor.

❏ Remove the tail fi n from the aluminum boom

and re-install it onto the carbon boom.

❏ Slide the two tail motor wires into the tail boom

and re-install the tail boom onto the helicopter. The
boom should protrude 1/8" [3mm] from the front of
the tail boom mount.

❏ The tail motor mount m ust be perpendicular with

the main shaft and the tail fi n must be parallel to
the main shaft. Once the fi n and motor mount are
aligned, tighten the four tail boom clamp screws.

❏ Slide the two motor wires through the aluminum

pin and out the back of the motor mount. Mix a small
amount of 6 minute epoxy and apply it to the aluminum
pin. Slide the pin into the carbon boom and remove

HMXZ7453 for HMXE7453© Copyright 2007 Printed in China