7
1. Check all screws of the fuselage and
make sure there are no loose screws or
any missing screws.
1. Check all for any loosening screws;
2. Check for any damage or cracks on the
conjunction between the arm and
fuselage;
3. When the arm is unfolded, check to see
if there is any obvious gap between the
arm and fuselage;
4. Ensure when folding the arms inwards or
outwards that there is no jamming or
abnormal noise- it should be smooth.
1. Check whether the surface is dirty or
damaged.
1. Check whether the landing gear and the
arm are firmly fixed together, and
whether any screws are loosening or any
missing screws.
1. Check whether there is dirt, water stains
or corrosion marks in the battery
interface. If any, please wipe it clean;
2. Check whether the screws of the battery
buckles on both sides are not loose or
fall off;
3. Ensure the buckles at two sides of
battery rebounds strongly when pushed;