When machines arrive at J&J Sports from the factory we go through what is called a PDI, Pre Delivery Inspection.
Every manufacturer has their own specific check list and procedure for PDI.
Some of the procedures may include but not limited to:
Uncrate the unit
Idle speed adjusted
Nuts and bolts tightened
When you purchase your new machine these inspections will be done and the sales staff will be sure to go over the machine with you.