When you received a machine with blades off the cutting head,  that's because we take them off before transportation for safty.

How to install blade when you receive a new machine?

Use a spanner to fix the end of axel,   the other spanner to screw up

It's done like this.

After you doing this,  please power on,  check the rotating direction of the blade is correct or not ?  

See operation video for better understanding.