How do I check and set the axis amperage?

The axis amperage is checked by replacing the axis fuse with a DC ammeter. You will need a meter with at least a 10 amp DC range.

FU 14 is the Z axis fuse (Wire 28), FU 13 is the Y axis fuse (Wire 26) and FU 12 is the X axis fuse (Wire 24) and they are left to right 14, 13 then 12 (check the wire numbers).

The amperage is adjusted with the trim pots on the edge of the ACC card. Z is controlled by the bottom one, Y by the center one and X by the top one.

Do NOT connect or disconnect the meter while the axes are powered up.