
Product: ROKR Racing Car 3D Wooden Puzzle
SKU: LK505
Product type: 3D Wooden Car Puzzle
Quick answer: This guide shows where to find screw S and what to check if the LK505 spring cannot be wound, rebounds after winding, stores energy without moving the car, or does not drive the car far. For the full manual and assembly resources, visit Assembly Guides and Manuals. For missing, broken, uncut, or visibly warped parts, use Part Replacement.
In This Guide
Parts Problems
Where Is Screw S?
Screw S comes with part P23.

Movement Problems
Why Doesn't the Car Move After Assembly?
1. If the spring cannot be wound, or it cannot stay fixed after winding and rebounds immediately, check whether parts P22 and C5 are missing.
LK505 part P22 check.
2. If the spring can be wound and store energy but the car does not move, check whether part P18 is facing the wrong direction.
3. If the spring can be wound and store energy but the car does not travel far, check whether the transparent rubber sleeve provides anti-slip grip. If the sleeve is too loose, replace it with a new one. Also check whether the steel shaft is secured by the part.

Need More Help?
If your issue is not covered here or the problem continues after these checks, email service@robotime.com or contact Robotime Support.
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