Why doesn't the motor move when I assemble it?
Please confirm the battery level, whether the battery is installed correctly, and whether the shrapnel is installed backwards. If the shrapnel is not in good contact with the battery, it will not be able to start without power.
Why does the gearbox make abnormal noises and does not run smoothly?
Please check whether the order of the gear combinations in the gearbox is wrong or reversed according to the instructions.
Toys not running smoothly?
Usually the operation is not smooth because the burrs are not trimmed cleanly. Check whether the burrs of the parts are completely cut according to the instructions.
Parts are missing or the part board is broken or broken during disassembly and assembly
You can contact our online customer service for supplementary matters
Disassembly and storage teaching of multi-combination change mode
1. Disassemble according to the reverse steps of the manual
2. The registration number of the separated parts, so as not to worry about changing the parts next time
3. After the disassembly is completed, another change can be assembled