Warning: Disconnect the power cable of main motor before adjustment for the sake of pilot's safety.
Matters needing attention: Before departing the factory, all of the components have been correctly adjusted. Normally it is not necessary to make any adjustment. However,due to disturbance during long-distance transportation , some joints, screws or parts may be loose or even damaged. For safety's sake, please refer to section 2.3 - "attention before flight" and strictly follow the helicopter checks described.