2) If HOT, turn the whole Rx over to expose the Regulator chips to cool air and use
heavy style rubber bands (like used for R/C airplane wings) and band it down with the
chips upward. Keep rubber away from the 2 chips of course.
This is a Walkera, the 3-in-1 receivers are notorious for dying in the DF4... this Rx is the
same thing... basically!
3) Change the receiver antenna to #26 multi-strand wire. Also known as “R/C hookup
wire”.
4) Important: If you replace the plastic tail gears with a metal set... make sure to keep
your antenna wire away from that area now, as you will have metal-to-metal RF radio
noise which will now interfere with the radio control system. The only way around this
would be to seal the gearbox and fill it with conductive lithium grease... not an easy
modification.
5) Head Dynamics and CG
Prepare to remove the head by unlocking the pitch ball links (leading edge of blades)from the blade
holders and these 2 swashplate rods. Do NOT use tools if you don'thave ball link pliers. Actually, you
can use an ordinary fork! Put the tine right on the plastic ring and push the ball out with the side of a
flat blade screwdriver.
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