Heli-Max HMXE04 v1.1 - Manual (Page 11)

11
E-Board Adjustments
Note: All of the e-board adjustments are pre-set and test
flown at the factory. If you replace the e-board with a new
one or need to re-adjust it for any reason, please follow the
guidelines below. Never turn these adjustments more than
180° and only use a plastic non-conductive screwdriver to
make the adjustment.
Tip: If you need to make some adjustments consider
using a felt-tip marker and place a mark on the
adjusters so you can always return them back to the
factory defaults.
Left/Right Bias – Is used to obtain a balanced feel between
left and right tail rotor inputs. The adjustment is very
sensitive so only make small changes. Turn clockwise to
increase the left tail rotor bias.
Gyro Gain – Turn clockwise to increase gain. Typically too
little gyro gain causes the tail to slowly move around and
drift. With the gyro gain too high, you will notice a very fast
oscillation in the tail known as “Wag.” This adjustment is not
very critical so please don’t spend a lot of time trying to get
”the best” setting possible.
Tail Rotor Trim – If the helicopter wants to drift one direction
in a stable hover then try using this adjustment. The
adjustment is very sensitive so only make small changes.
Turn clockwise to add right tail rotor trim.
Servo Setup
Note: The AXE Mini EP RTF is factory setup and test flown
so there is no need to make these adjustments unless you
have damaged or changed a servo.
Servo arms are perfectly level when the throttle stick is all
the way down in normal mode (Idle Up Off). Helicopter left
side Servo A pushrod length should be 1.77" [45mm].
Servo arms are perfectly level when the throttle stick is all
the way down in normal mode (Idle Up OFF). Helicopter
right side Servo B pushrod length should be 1.26" [32mm]
and Servo C pushrod length should be 1.77" [45mm].
Tail Rotor Replacement
Remove the small piece of silicone tubing from the tail rotor
shaft. Slide the tail rotor off of the shaft. Please notice there
are two pins protruding from the back side of the tail rotor.
These two pins must be aligned with the holes in the drive
gear. Simply slide the new tail rotor onto the shaft aligning
the pins with the drive gear. Press the silicone tubing back
onto the shaft. Make certain there is no end gap on the tail
rotor shaft once you are done.
MAINTENANCE & REPAIR