1. The motor slide may become loose and require adjustment after the machine has been in service. Refer to parts
breakdown and become familiar with the USA5 parts. Locate motor slide cover plate (item #31 on page 13)
and adjustment screw (item #8 on page 14). Using the 3 spoke feed handles, position motor and
slide assembly in the full up position. Insert supplied 5mm hex key through slide cover plate access hole. Using the
hex key turn adjustment screw (item #8) clockwise to increase slide tension or counter-clockwise to decrease slide
tension. Do not over tighten adjustment screw. Excessive slide tension can damage the USA5. Properly adjusted, the
motor and slide assembly should have no side to side movement and remain in position without drifting down.
2. Keep bottom of magnet clean, free of chips, burrs, nicks, oil and other contaminants. Inspect magnet face
to ensure surface is flat and square. A worn magnet surface dramatically reduces magnetic holding force.
3. Periodically lubricate motor slide ways with lithium base grease.
4. Routinely grease zerk (item #23) on arbor support bracket.
5. Visually inspect arbor, sleeve and support bracket for wear.
6. Arbor runout should not exceed .0035 inches per revolution. This is most accurately measured by placing a dial
indicator needle inside of arbor bore and rotating arbor while observing indicator.
7. Inspect coolant system, reservoir, o-rings, lip seals and coolant collar for wear.
8. Inspect motor brushes and replace as needed.
9. Replace any worn parts and regularly tighten fasteners that have become loose during usage.
10.Regularly test machine by placing machine on non-ferrous material. Engage magnet switch.
Motor should not start.
regular
maintenance
10
