Shenzhen Simtoo Intelligent Technology Co. LTD. DF400 User Manual

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Assembly
Step 4. Propellers ( Diagram 4)
Assembly
Step 2. Unfold the Aircraft ( Diagram 2)
Diagram 2:
Diagram 3:
landing gears
front arm
front arm
rear arm
Spring buttons
Notes: Do not forget to push the spring button every time you try to fold or unfold the arms. 
Otherwise, the arm lock may be damaged.
Step 3. Landing Gears (Diagram 3)
rear arm
Push down the spring button under the motor arm and slowly twist 
the arm till the end.
The arm will be locked in place with a click.
Unfold the rear arms before unfold the front arms.
To fold the aircraft, push down the spring button and twist the 
arms in the reverse order.
Match the landing gears with the gear mounts and push up into 
place.To dismount the gears, just pull them down smoothly.
Black Motor
Silver Motor
Black Motor
Silver Motor
Black cap propellers
Silver cap propellers
lock
unlock
lock
unlock
Diagram 4:
Notes: Make sure the propellers are tightened on the right motors before fly otherwise the 
aircraft may crash.
Attach the silver cap propellers onto the silver motors and secure 
them by spinning clockwise.
Attach the black cap propellers onto the black motors and secure 
them by spinning counter-clockwise. Arrows around the propeller 
cap indicate the directions of tightenning and loosening.
To release the propellers from motors, just spin in the opposite 
direction.