Heli-Max AXE CX Nano User manual

Length: 6.29 in [160 mm]
Width: 1.77 in [45 mm]
Height: 4.72 in [120 mm]
Rotor Span: 7.87 in [200 mm]
Weight: 1.37 oz [39g]
(with supplied flight battery)
Specifications
© 2010 Hobbico®, Inc. HMXE13**
INSTRUCTION
MANUAL
™

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IMPORTANT PRECAUTIONS
IMPORTANT PRECAUTIONS
●Only use the included charger with the included battery or replacement
part (GPMP0412).
●Do not attempt to use this charger with NiCd or NiMH battery packs.
●Never charge in excess of 4.20V per cell.
●If the battery should become damaged, discard it. Do not attempt to use
a damaged battery.
●Do not leave the charger unattended while charging. Disconnect the
battery and remove input power from the charger immediately if either
becomes hot! However, it is normal for the charger to get warm.
●Disconnect the battery from the charger and carefully move the battery
to a fireproof location if the battery begins to swell or smoke!
●Never charge at currents greater than 1C.
●Always charge in a fireproof location.
●Never trickle charge.
●Never allow the battery temperature to exceed 140° F [60° C].
●Never disassemble or modify pack wiring in any way or puncture cells.
●Never discharge below 2.75V per cell.
●Do not allow water, moisture or foreign objects into the charger.
●Do not block the air intake holes, which could cause the charger to
overheat.
●Do not place the charger or any battery on a flammable surface or near
a combustible material while in use.
●Do not charge on a carpet, cluttered workbench, paper, plastic, vinyl,
leather, wood, or inside an R/C model.
●Never charge inside a full-sized vehicle.
●Always disconnect the battery from the charger and the power supply
from the charger when not in use.
●Do not attempt to charge a battery if it is swollen or hot.
●ALWAYS KEEP OUT OF REACH OF CHILDREN.

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WARRANTY
WARRANTY
Heli-Max®guarantees this kit to be free from defects in both material and
workmanship at the date of purchase.This warranty does not cover any component
parts damaged by use or modification. In no case shall Heli-Max’s liability
exceed the original cost of the purchased kit. Further, Heli-Max reserves the
right to change or modify this warranty without notice.
In that Heli-Max has no control over the final assembly or material used for final
assembly, no liability shall be assumed nor accepted for any damage resulting
from the use by the user of the final user-assembled product. By the act of using
the user-assembled product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated with the use
of this product, the buyer is advised to return this kit immediately in new
and unused condition to the place of purchase.
To make a warranty claim, send the defective part or item to Hobby Services at
this address.
Hobby Services
3002 N. Apollo Dr., Suite 1
Champaign, IL 61822
USA
Include a letter stating your name, return shipping address, as much contact
information as possible (daytime telephone number, fax number, e-mail address),
a detailed description of the problem and a photocopy of the purchase receipt.
Upon receipt of the package the problem will be evaluated as quickly as possible.
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT
CONTAINS IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING
THE ASSEMBLY AND USE OF THIS MODEL.

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TABLE OF CONTENTS
TABLE OF CONTENTS
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ADDITIONAL ITEMS REQUIRED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
KIT INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
KIT CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TRANSMITTER FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLTHE TRANSMITTER BATTERIES . . . . . . . . . . . . . . . . . . . . . . . . . .7
CHARGINGTHE FLIGHT BATTERY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LITHIUM BATTERY HANDLING & USAGE . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRIC MOTORWARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
TURNINGTHE MODEL ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
TRANSMITTER CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
MAINTENANCE & REPAIRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ORDERING REPLACEMENT PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
EXPLODEDVIEW & PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
INTRODUCTION
INTRODUCTION
Thank you for purchasing the Heli-Max AXE CXn Helicopter. We are certain
you will get many hours of enjoyment out of this model. If you should have any
questions or concerns please feel free to contact us at helihotline@hobbico.
com. For the latest technical updates or manual corrections to the AXE CXn
Helicopter visit the Heli-Max web site at:
www.helimax-rc.com
Open the “Helicopters” link, and then select the AXE CXn. If there is new technical
information or changes to this model a “tech notice” box will appear in the upper
left corner of the page.
SAFETY PRECAUTIONS
SAFETY PRECAUTIONS
Failure to follow these safety precautions may result in severe injury to
yourself and others.
Keep your face and body as well as all spectators away from the plane of rotation
of the rotors whenever the battery is connected.

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Keep these items away from the rotors: loose clothing, shirt sleeves, ties, scarfs,
long hair or loose objects such as pencils or screwdrivers that may fall out of
shirt or jacket pockets into the rotors.
The spinning blades of a model helicopter can cause serious injury. When choosing
a flying site for your AXE CXn, stay clear of buildings, trees and power lines.
AVOID flying in or near crowded areas. DO NOT fly close to people, children or
pets. Maintain a safe pilot-to-helicopter distance while flying.
Your AXE CXn should not be considered a toy, but rather a sophisticated,
working model that functions very much like a full-size helicopter. Because of its
performance capabilities, the AXE CXn, if not operated correctly, could possibly
cause injury to yourself or spectators and damage to property.
Do not alter or modify the model, as doing so may result in an unsafe or unflyable
model. In a few cases the instructions may differ slightly from the photos. In those
instances the written instructions should be considered as correct.
You must check the operation of the model before every flight to insure that all
equipment is operating and that the model has remained structurally sound. Be
sure to check linkages or other connectors often and replace them if they show
any signs of wear or fatigue.
ADDITIONAL ITEMS REQUIRED
ADDITIONAL ITEMS REQUIRED
❏(4) AA Alkaline cells (FUGP7300)
KIT INSPECTION
KIT INSPECTION
Before starting assembly, take an inventory of the AXE CXn to make sure it is
complete, and inspect the parts to make sure they are of acceptable quality. If
any parts are missing or are not of acceptable quality, or if you need assistance
with assembly, contact Product Support. When reporting defective or missing
parts, use the part names exactly as they are written in the Kit Contents list.
Heli-Max Product Support Ph: [phone], ext. 5
3002 N. Apollo Drive, Suite 1 Fax: [phone]
Champaign, IL 61822 E-mail: [e-mail]

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KIT CONTENTS
KIT CONTENTS
TRANSMITTER FEATURES
TRANSMITTER FEATURES
1 2
4
3
3. Charger
4. Transmitter
1. Helicopter
2. Flight Battery

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INSTALL THE TRANSMITTER BATTERIES
INSTALL THE TRANSMITTER BATTERIES
❏ Open the battery cover on the back of the transmitter, and install four
AA batteries. Double check the polarity of each battery before replacing the
battery cover.
❏ Turn on the transmitter and verify that the LED indicator glows solid red.Turn
the transmitter off for now. If the LED indicator did not come on, remove the battery
box from the transmitter and verify that the batteries were installed correctly.

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CHARGING THE FLIGHT BATTERY
CHARGING THE FLIGHT BATTERY
WARNING!! The charger supplied with the Heli-Max AXE CXn
Helicopter contains protective circuitry. If you experience any difficulties
while charging the battery, please disconnect the battery from the
charger and unplug the charger from the power source. Allow the battery and
charger to rest for two hours as this will allow the charge protection circuit to
reset. If this issue re-occurs during normal use, please contact technical support
for further assistance.
❏ Plug the charger into an AC outlet.The indicator light on the wall transformer
will flash red during initialization and then turn solid green once initialization has
been completed.

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❏ Plug the battery into the charger. The charge indicator light will turn red;
this indicates that the battery is being charged. Once the battery is completely
charged, the charge indicator light will turn solid green. Disconnect the battery
from the charger. Under normal operating conditions, the battery may take up
to one hour to recharge.
The battery is being charged.
The battery is fully charged.
The charger is ready.
Solid Red
Solid Green
(with battery connected)
Solid Green
(without battery connected)
Charge Indicator Light

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LITHIUM BATTERY HANDLING & USAGE
LITHIUM BATTERY HANDLING & USAGE
WARNING! Read the entire instruction sheet included with this
battery. Failure to follow all instructions could cause permanent
damage to the battery and its surroundings, and may cause
bodily harm!
●Land your model immediately when the battery begins to lose
power. Recharge the battery before attempting another flight.
A dangerous situation can occur when attempting to recharge an
over-discharged battery!
●ALWAYS charge the battery inside a fireproof container placed in a
fireproof location clear of combustible materials. Failure to do so
can result in property damage and/or bodily harm!
●ALWAYS keep charging batteries within eyesight. Leaving the
battery unattended is dangerous!
●ALWAYS keep a supply of sand accessible when charging.
Dumping sand on the battery will extinguish the LiPo chemical fire.
●NEVER use anything EXCEPT a LiPo approved charger.
●NEVER charge over 4.20V per cell.
●NEVER charge at currents greater than 1C.
●NEVER charge through the “To ESC” or “DISCHARGE” lead.
●NEVER trickle charge, or allow the battery to discharge below
2.75V per cell.
●NEVER allow the battery temperature to exceed 140° F [60° C].
●NEVER disassemble or modify the pack wiring in any way or
puncture cells.
●ALWAYS KEEP OUT OF REACH OF CHILDREN.
ELECTRIC MOTOR WARNING
ELECTRIC MOTOR WARNING
Electric powered models are very dangerous. Do not work on the model while
the flight battery is plugged in as interference may cause the main rotor blades
to spin, possibly causing injury to yourself.

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TURNING THE MODEL ON
TURNING THE MODEL ON
❏ Place the helicopter on its side and slide the battery into the battery compartment.
Connect the flight battery and place the helicopter onto a flat surface.
❏ Turn the transmitter on and allow the helicopter to remain still for 10 seconds.
Always step 15 feet [4.5m] away from the AXE CXn Helicopter before operating
the throttle.
Your AXE CXn helicopter has a safe start feature built in that prevents
the motor from activating unless the collective stick has been lowered
to the lowest position.If the motor won’t run and turn the main blades,
please make sure the collective stick is all the way down and leave it
there for a couple of seconds.Then try moving the stick up slowly.

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TRANSMITTER CONTROLS
TRANSMITTER CONTROLS
All controls are described with the tail pointing directly toward you.This is the best
way to fly in the beginning since it keeps the control inputs oriented the same
direction. Once you start getting comfortable you can work on side hovering
and nose-in.

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Moving the cyclic stick
right will cause the
helicopter to tilt right
and start moving that
direction.
Helicopter Moves Right
Helicopter Moves RightHelicopter Moves Right
Moving the cyclic stick
left will cause the
helicopter to tilt left and
start moving that
direction.
Helicopter Moves Left
Helicopter Moves LeftHelicopter Moves Left
Moving the cyclic stick
backwards (towards
you) will cause the
helicopter to tilt back-
wards and start moving
that direction.
Helicopter Moves Backwards
Helicopter Moves BackwardsHelicopter Moves Backwards

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Moving the cyclic stick
forward (away from
you) will cause the
helicopter to tilt forward
and start moving that
direction.
Helicopter Moves Forward
Helicopter Moves ForwardHelicopter Moves Forward
Moving the collective
stick up (away from
you) will cause the
helicopter to climb
higher.
Helicopter Climbs
Helicopter ClimbsHelicopter Climbs
Moving the collective
stick down (towards
you) will cause the
helicopter to descend.
Helicopter Descends
Helicopter DescendsHelicopter Descends

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Moving the tail rotor
stick towards the left
will cause the helicopter
nose to rotate left
(counterclockwise).
Nose Rotates Left
Nose Rotates LeftNose Rotates Left
Moving the tail rotor
stick towards the right
will cause the helicopter
nose to rotate right
(clockwise).
Nose Rotates Right
Nose Rotates RightNose Rotates Right

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FLYING
FLYING
The Heli-Max AXE CXn is a lightweight helicopter.Taking that into consideration,
you should only fly indoors or in calm winds less than 1mph.The AXE CXn should
be flown in a large area of at least 50 feet [15.25m] square with no obstacles.
The AXE CXn is lightweight and due to this it does not fly well in ground effect
(air disturbance when the model helicopter is hovered below 1 foot [30cm]).
The model should be flown at a minimum altitude of 1 foot [30cm] to avoid the
instabilities cause by ground effect.
Crashing
If you have operated radio control models in the past then you probably already
realize that it is not a matter of “if” you are going to crash, it is a matter of “when”
you are going to crash. Once you realize the model is going to collide with
something or crash into the ground, you should always bring the throttle stick all
the way down to stop the main rotor blades from rotating. If you can remember
to do this, chances are you will not damage the helicopter in the crash.The main
rotor blades carry a lot of RPM and inertia during flight. Cutting the power to the
main rotor blades will prevent most of the crash damage.
Takeoff
Slowly add power, observe the model and make all of the necessary corrections
to keep the model level. If you feel a trim adjustment is needed, lower the throttle
to idle and make trim adjustments before lifting off for the first time.You will find
that model helicopters never allow you to return the sticks to center. You just
need to position the stick as needed to maintain a steady hover.
You will notice the cyclic controls lag behind your inputs. This is normal and
something you get the feel for with time. It’s normal to drift around in a hover
until you become accustomed to flying the model. The cyclic controls are fairly
sensitive so only small movements are necessary.
Hovering
Once the helicopter is up in the air, simply try to hold the helicopter in one spot. If
this is your first model helicopter, it will require some practice.Wind or air currents
have a big effect on the stability of the helicopter as well. Be patient and slowly
work forward, as trying to rush the learning process can be costly.

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Landing
Level the helicopter into a steady hover and slowly decrease power until the
helicopter settles onto the ground.
Basic Maneuvers
Once you become comfortable with hovering at different orientations and landing,
it’s time to move on to more advanced maneuvers.
Slow Pirouettes – Add a small amount of tail rotor (left or right) and try rotating
the helicopter slightly sideways and see if you can hold it there. If you feel
uncomfortable, then bring the tail back toward you. Once you start getting
comfortable, try moving the helicopter to the side. Then turn back and fly back
to the other side in straight lines. Then work into rotating the helicopter around
360°, which is called a pirouette. The helicopter can drift during these so make
sure you have plenty of room when you first start practicing.
Nose-in Hovering – After pirouettes it’s time to move on to nose-in hovering.
Take off and climb to 10 feet [3m]. Practice half pirouettes from tail in to nose-
in hovering and try to lengthen the delay in between. This will give you a little
practice nose-in and still give you a chance to get out of trouble. As your skills
improve you’ll remain nose-in for longer periods of time.
GOOD LUCK AND GREAT FLYING!

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MAINTENANCE AND REPAIR
MAINTENANCE AND REPAIR
The Heli-Max®AXE CXn is an extremely small helicopter. Working on a model
this size will require small tools. The DTXR0170 DuraTrax®Precision Phillips
Screwdriver 00x75mm is recommended. On occasion it will be necessary to
replace damaged parts after a crash. Please use this section as a guide to
perform repairs.
Main Rotor Blade Replacement
Remove the blade bolt using a #00 phillips screwdriver. After the blade bolt has
been removed, slide the rotor blade out of the blade grip. Reinstall the new blade,
ensuring that the holes within the blade and blade grip are aligned properly.
Reinstall the blade bolt.
Main Rotor Grip Replacement
Remove both blade bolts and main rotor blades. Remove the two grip bolts and
remove the blade grips. Place the new grips onto the pins. Install the grip bolts
and install the blades.

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Replacing the Flybar
Remove the flybar linkage from the blade grip. Press outward on one side of
the head block and simply rotate the flybar carrier from the head block. Once
the flybar carrier has been removed, remove the flybar weight bolts and remove
the flybar weights. Remove the flybar linkage from the old flybar and install the
linkage onto the new flybar. Install the flybar weights onto the new flybar and
slide the flybar pivot back onto the head block. Reinstall the flybar linkage.
Replacing the Landing Gear
Remove the flight battery and simply pull down on the landing skid. Press the
new landing skid into place.

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Replacing the Main Gear
The AXE CXn uses an inner solid main shaft and a hollow outer main shaft. To
access the main rotor gears it will be necessary to remove the landing gear
first. Remove the lower main gear retaining screw. The lower gear will simply
drop down off the main shaft. If you need to replace the upper main gear,
slide it down off the main shaft and reinstall the new gear, ensuring that the
flat spot molded inside the gear aligns with the main shaft. Reinstall the lower
gear, ensuring that the screw aligns with the flat spot machined on the inner
main shaft.
Replacing the Main Shaft
The AXE CXn uses an inner solid main shaft and a hollow outer main shaft.
Remove the lower main gear retaining screw. When performing the following
step please be careful not to lose any small bearings or bearing blocks. Slide the
inner shaft and upper rotor head from the outer main shaft by pulling upwards.
If you need to remove the lower shaft, disconnect the servo linkages from the
swashplate and pull upwards. Transfer necessary parts from the old shaft to the
new shaft and install in the reverse order listed above.