Casters. The ShadeSealer-168 has 8 casters.  6 look like the caster shown on the left; and 2 look like the caster shown on the right.  The 6 casters are swivel-type; and the 2 casters are locking-type.  The 2 locking-type casters are located on either end (Left and Right) and in the front of the Table.  To lock the locking-type casters, press the lever shown in the photo on the right to activate the locking feature of these casters.

To adjust machine height, loosen the nut shown in the photo on the left.  Then rotate the caster support in either direction to either lengthen, i.e., lift; or shorten, i.e., make lower each caster to level the machine.  Factory default setting is at the lowest position for each of the casters.