You should expect an easy to assemble and well working tool, Below you will find known issues and how to fix them.
1. Discs cannot turn at all in the sower.
Check the slot for the seed discs to see if there are defects in the plastic. If there is a pea size bubble in the the corner of the slot, it is manufacturing defect. Please contact the seller and request a new seed box.
2. Discs do not run smoothly.
When the sower is new, the discs can have high resistance. This will improve quickly after the first use. The discs need to be worn a bit before they run perfectly. To speed the process run the sower without seeds and seed dispencer on the ground or lawn until everything runs smoothly.