Routine Maintenance; Brushless Motor Maintenance; H/H Pro – H+/H520 Parts; Re-Installing Screws - YUNEEC Typhoon H Plus Maintenance, Troubleshooting & Parts

Tips/Information:
i.e. words of wisdom to the wise
DO NOT ATTEMPT REPAIRS IF YOU ARE UNSURE OF WHATS INVOLVED
The Internal Frame for the Yuneec aircraft provides support for the drone.
Every part of the Yuneec H series aircraft relies on the internal frame as this component holds the battery, supports the arms and houses the
internal circuitry. If the Yuneec H series Internal frame is even slightly damaged from a crash it is strongly recommend it be replaced.
Even a small crack in the internal bracket may compromise the structural integrity of the drone during flight.

Brushless Motor Maintenance:

The brushless motor will NOT spin like a top if you give it a quick spin with your fingers as the rare earth magnets
Brushless motors are almost maintenance free, so minimal care is required for long life. Keep the motor clean, free of dust and dirt, especially
the bearings. Dirty bearings wear quickly. Lubricate the bearings regularly with light oil. Do not immerse the motor in water, or solvents. Do
not bend the wires excessively and secure wires to prevent breakage due to fatigue from vibration. Always use Yuneec OEM balanced
propellers to reduce loads on bearings, to reduce noise, and reduce stress on the airframe.
Motor bearings are shielded, but not sealed, as a true contacting seal would provide too much friction (not to mention wear out very fast).
A drop of light oil on the front and rear bearings probably won't hurt... but most good bearings should hardly need re-lubrication.
It can be done with the motor in place – just remove motor Lens and LED to get to the motor lower bearing and invert the aircraft to lub.
RTV Silicone Caulk
amount on an electrical connection will act as bond to hold it together, after it dries and is easily remove with a knife
when you need it removed. A piece of tape tends to dry and come loose.
H/H Pro – H+/H520 Parts
Typhoon H/H Pro arms are shorter than the H+/H520 and CAN NOT be inter-changed, same goes for the Propellers and Battery chargers.
And a B arm must be replaced with a B arm – angle/pitch of the arm will not work in place of the A arm.
Some parts are interchangeable i.e. body shell, legs etc. Do some asking, research and common sense or just get the right part, trying to save a
buck may cost you much more – injury of yourself or someone else, property damage or just loss of aircraft.
–

Re-installing screws

DO NOT
Place the screw in the hole by hand and turn counter-clockwise until you feel the screw DROP into the threads then hand tighten a couple of
turns before using a tool.
DO NOT over-tighten screws etc as most everything is plastic and it will WEAKEN the plastic - if bumped or dropped when overtightened
may cause the joint to crack or break and may cost you more than you wish to spend if you have to send it off for repair at a center.
Electronic Components:
Require Yuneec or an authorized repair center to install, due to Yuneec's proprietary software (which you do not
have access to) to calibrate or set-up in order to be used i.e. almost all Gimbal components, Transmitters/Relievers etc. So, do not spend the
money for these components as the repair center you send it off to for repair should have the component or inform them you have it and will
send it along.
Inspect solder joins for integrity.
(indicates a bad connection and is overheating). Look for angle hair in closely soldered wire connectors/connections (this is 1 or more wire
strand touching another connection), with this type of connection it could send a signal the wrong way or to two different places NO GOOD.
If unsure of a solder join apply FLUX and re-flow the solder.
required. Too much heat and you can lift traces and damage a board.
Take pictures
before dis-assembly of areas so you can get it back in the correct configuration/location or in the case of wires routed the proper
way.
OR IT'S OUTSIDE YOUR SKILL LEVEL
strength and close tolerance to the stator prevent this – this is normal.
on electrical connections (plugs) to prevent separation from vibration or being bumped. A small
force and try to cut new threads in the plastic as this will weaken/damage them.
You can give the attaching wire a slight pull to see if the connection is well made, look for discoloration
DO NOT
NOTE:
solder without FLUX and use ONLY the minimum amount of heat
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