Ensuring your toy crane machine is securely assembled is crucial for both safety and optimal performance. Start by thoroughly reviewing the manufacturer's instruction manual. Check that all structural frames are tightly connected with no visible gaps or wobbles. Verify every bolt, screw, and fastener is properly tightened according to specifications. Test the machine's stability by gently rocking it from different angles – it should remain firmly planted without tipping. Inspect the crane arm's movement along its track; it should glide smoothly without catching or jerking. Examine electrical connections to ensure all wires are securely fastened and protected from pinch points. Listen for unusual grinding or scraping noises during operation, which may indicate misalignment. Finally, perform regular maintenance checks, including re-tightening connections after the initial break-in period, to maintain long-term security and prevent potential hazards during use.