Beijing TT Aviation Technology Co., Ltd.
Add: No.1 TTA Building, Niantou Industrial Park ,Changping District,Beijing, China
www.ttaviation.org
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Appendix
Ⅰ
Key Parts Maintenance
1.Propellers
(1) Blades of propeller should keep intact. If there are any cracks or missing parts, the
propeller should be replaced.
(2) Tightness of all the blades should be suitable and be similar. Replace the propeller
gaskets/washer with new ones when blades cannot spin smoothly.
(3) Blades should be folded well and be held by the blade holder or belts after flight, and
should be released and put straight before take off.
2.Motors
(1) Motors should be or be suggested to be replaced:
(2) Before the rotor clearance get loose or running after 3000 hours.
(3) The rotor movement get blocked.
3.ESC should be or be suggested to be replaced:
(1) When Esc output obviously different from other ones.
(2) Damaged in crash
4.Flight Controller should be or be suggested to be replaced:
(1) When IMU is not able to be calibrated to normal.
(2) When the I/O ports is not capable to communicate with other devices on drone as
normal as before.
