What happens if my machine is incorrectly tensioned?

If the machine is incorrectly tensioned and has been screwed down too tightly, you will get heat to the blades, cause strain and ultimately damage the motor or strip the gears. You will find the blades will not cut at all.

If the blades are fitted to loosely you will get hair between the blades, which will separate the top and bottom blade even more, again this will mean the blades will not cut.