Maintenance Guidelines. 

I. Checking the Battery 

1. Check the battery for damage and deformities. If there are any signs of damage to the battery, stop

using it and discharge the battery to 10% or below for disposal. Do not disassemble the battery for any 

reason. 

2. Check the battery pins and rub them clean with an eraser if any residue is observed. This will help to 

ensure a more reliable connection. 

3. Check the metal battery power connectors for damage. If the connectors appear burnt, try to clear 

them. This can be done by inserting a piece of sandpaper (1mm thick) into the connectors to polish the

metal. 

4. Check the contact pins in the battery compartment to ensure that the pins are clear. They should be

able to establish easy contact with the battery connectors and should not be bent. 

5. Check the electrodes on the battery. If they appear burnt, polish them with sandpaper. If there is 

serious erosion, send the battery in for repairs. 

6. Check the components of the battery bracket to see it is in good condition and that all screws are 

secure. This prevents the battery from becoming loose during flight. 

7. Check the power cables between the arms and the center plate, if the cables are worn, replace. 

8. For long term storage, please refer to the “Flight Battery Safety Guidelines” and check the battery

once a month to prevent the battery cell from being damaged. 

9. Monitor battery health and confirm that all battery cells are at similar voltage levels and stay at the 

same level when the battery is fully charged. If all cells maintain voltage levels above 3.7V but any cell is 

0.2V higher or lower than the others, replace battery. 

II. Checking the Aircraft 

1. Confirm that all the screws are still adequately tightened. 

2. Check the aircraft for breaks or damage. If there is any reason to believe that detectable damage 

might affect flight safety, perform proper and necessary maintenance . 

3. Check the tubes of the arms for damage. 

4. Check the dampers on the landing gears. If they are loose, secure them with 502 glue. 

5. Ensure that there are no obstacles on or around the GPS module or around the antennas on the 

landing gear. Remove any obstacles (such as tapes with conductive material) that might affect or block

the signal. 

6. Check that the right and left landing gear rest at the same tilt angle. 

III. Checking the Motors 

1. Check the rotors to confirm that they have not become loose. 

2. Detach the propellers and start the motors. Listen carefully. If there is any abnormal noise, please 

replace the motors. This may be a sign that the bearings have been worn out. 

3. Detach the propellers and start the motors. Carefully examine the edge of the rotor and confirm that 

the shaft is perfectly centered on the motor. Check for any abnormal or excessive vibration. If any 

problems are detected, replace motors. 

4. Ensure that the screws used to secure the motor bases are tight and the plastic components around 

the motors are in good condition. If not please tighten the screws and repair any broken plastic 

components. 
IV. Checking the Propellers 

1. Check the propellers. If there is any bending, breakage or cracking on a propeller, replace. 

2. Attach the propeller to the motor, turn on the aircraft, and place it on the ground. Stand 1 meter 

away from the aircraft and observe the rotating propellers. If you can see two distinct propeller outline 

layers, when looking at a spinning propeller from the side, this propeller is damaged and should not be 

used. 

VI. Checking the PixHawk Flight Control Unit (FCU) 

1. Open the PixHawk/Mission planner app to check the condition of the FCU and perform an advanced 

FCU calibration. Please place the aircraft in a cool environment and on a flat, stable surface. Do not 

touch the craft during the calibration. 

V. Checking the Control and Video Transmission System 

1. Check the antenna on the landing gear to ensure that it is are secure. Also check for any bending or 

damage. 

2. Check the antennas of the remote controller for damage. 

3. Check the neck strap for damage or wear, replace if necessary. 

VI. Checking the Gimbal and Camera 

1. The quick-mount connector for the camera is a particularly vulnerable component. If the gimbal fails 

to initialize when turned on, fails to work after initialization, or fails to transmit video to the app (while 

OSD data is displayed), the quick-mount connector may be worn. In this case, replace the rubber mat, 

circuit board, and/or connector on the gimbal quick-mount. 

2. Check the metal contacts on the quick mount connector board, if any contact is bent, replace the 

quick-mount connector. 

3. Check the contact pins on the quick-mount connector board, if there is any dirt, rub it clean with an 

eraser. If any contact pins are worn out it should be replaced. 

4. Confirm that the gimbal is able to properly stabilize itself. If its stabilizing performance deteriorates, 

Repair or replace.