1. Missing parts: If you think you are missing certain parts in your package, carefully check the Styrofoam and the device itself. Some parts (bolts, screws, etc.) are already attached to/in the device.
2. Allen bolts: Many homegyms contain Allen bolts, make sure the Allen wrench is properly seated in the bolt before applying force to the wrench. This will prevent the head of the Allen bolt from being turned.
3. Cables: When installing the cables from the weights to the pulley, make sure that the cable is laid correctly across the pulley. This applies to all cables. The cables must be completely unwound before mounting. If the cable curls over, it must be unwound straight again.