Heli-Max HMXM1012 - Manual

INTRODUCTION
Thank you for purchasing the Heli-Max HM4000 Heading Lock
Gyro. Please read through this instruction sheet before starting
installation. This gyro has been tested extensively and the
best initial settings are listed within this manual. The HM4000
Heading Lock Gyro is a high-performance, lightweight gyro to
be used with electric helicopters of any size.
Contents
❏ (1) HMXM1012 Heli-Max HM4000 Heading Lock Gyro
Required (Not Included)
❏ (1) Electric Helicopter
❏ (1) FUTQ1000 Futaba Gyro Foam Mounting Pads
30x30mm (3 pieces)
❏ (1) Small, fl at-bladed screwdriver
EPA / ATV (Tail Rotor): 70% (Left) / 70% (Right)
Dual Rate: 100% (Left) / 100% (Right)
Exponential: − 40% (Left) / − 40% (Right)
Trim Step (Tail Rotor Trim): set to 1 after initial fl ight
Gain: Normal 45% (AVCS), Idleup1 45% (AVCS), and Idleup2
45% (AVCS)
INSTALLATION
❏ 1. Once your helicopter is fully assembled and you are ready
to install the gyro, you should verify that the tail rotor slider and
linkage moves freely. Any friction will degrade the performance
of any gyro and shorten the life of the tail rotor servo. If there
is any friction in the tail rotor pitch control, please take a few
minutes now to fi x the problem.
❏ 2. Please follow the instructions provided with your helicopter
and install the tail rotor servo. Remove the servo arm attachment
screw and servo arm.
❏ 3. To remove any grease or mold release agents from the gyro
and helicopter, moisten a paper towel with isopropyl alcohol and
clean the bottom of the gyro and the gyro mounting location on
the helicopter. Before moving to the next step, allow time for the
isopropyl alcohol to evaporate.
❏ 4. Peel one side of the protective paper from the gyro mounting
pad. Carefully center the mounting pad on the bottom of the
gyro and press down fi rmly.
❏ 5. It is best to test fi t the gyro onto the helicopter. This will allow
you to fi nd the best orientation for the gyro, which will provide
the most convenient access to the wires and allow the best wire
routing. Please keep the gyro at least [76mm] away from the
main motor or electronic speed control. On most helicopters
available today, the gyro will mount either on the top or bottom
of the tail boom clamp. Please refer to the instruction manual
for your helicopter to determine the recommended mounting
location for the gyro.
❏ 6. Plug the gyro’s 3 wire connector into the tail rotor (rudder)
channel on the receiver (typically channel 4 for Futaba
transmitters). Ensure that the white wire is aligned with the
signal wires of the other plugs connected to the receiver.
❏ 7. Plug the remote gain wire coming from the gyro into the
remote gain channel on the receiver (typically channel 5 for
Futaba equipment). Ensure that the white wire is aligned with
the signal wire of the other plugs connected to the receiver.
❏ 8. Using the label as a reference, plug the tail rotor servo into
the side of the gyro. The signal wire must face the control leads
exiting the gyro and the black wire must face the outside of the
gyro. If necessary trim the connector as shown so it will fi t into
the gyro.
❏ 9. Once you have found the best orientation, you can peel
the protective paper from the mounting pad and mount the gyro
onto the helicopter.
❏ 10. Bundle the excess wires together using hook and loop
material or wire ties. Review your work and verify that none of
the wires can become entangled in the main rotor gear, swash
plate or other rotating components on the helicopter. Verify that
all of the wires are plugged into the correct locations and all of
the signal wires are in the correct location.
❏ 11. The setup discussed here will be for Futaba radio systems.
Most of the parameters should carry over to other brands of
transmitters. Please refer to your transmitter instructions for
exact programming instructions. Turn your transmitter on. Go
to the gyro function within the radio and enable this function.
Select the desired gain switch on the transmitter and set the
gain to +45% for gain A and − 45% for gain B. These are
temporary settings that will be used for setup only. Verify that all
tail rotor compensation mixing (Revo Mixing) is disabled in the
transmitter and all offsets or sub-trims are set to 0.
WARNING
To prevent the possibility of the main rotors turning
during setup, you must disconnect the main drive motor
from the ESC or remove the pinion gear from the motor.
Failure to do this may result in injury to yourself or
damage to the model and its surroundings.
❏ 12. Connect the fl ight battery to the ESC on the helicopter.
You must allow 7 to 10 seconds for the gyro to initialize. During
this initialization do not move the helicopter. Once the gyro has
initialized you will notice that the LED status indicator on the
gyro will turn on.
INSTALLATION INSTRUCTIONS FOR THE
HELI-MAX HM4000 HEADING LOCK GYRO