LEGO 8621 Building Instructions

Check the inventory list provided in the instruction manual and compare it with the pieces in the box.
Contact LEGO customer service through their website to request a replacement part.
Ensure that all connections are tightly fitted and consider reinforcing weak joints with additional pieces if available.
Use a soft cloth with mild detergent and water. Avoid submerging electronic components, if any.
Store the set in a dedicated container or zip-lock bags, and keep the instruction manual with it.
Yes, you can purchase additional parts through the LEGO website or third-party retailers.
Check for any obstructions or loose connections in the moving parts, and refer to the troubleshooting section of the manual.
The LEGO 8621 set is recommended for ages 9 and up due to its complexity.
Download the instruction manual from the official LEGO website or contact LEGO customer support for assistance.
Experiment with adding pieces from other sets, and look online for community-shared modifications and ideas.