1 . Turn master switch on
2 . Start and run engine at 1000 to 1200 rpm
3 . Turn load bank switch
on
4 . Turn load bank knobs
and
shows amperes specified in vehicle specifications
It should show voltage specified
in vehicle specification. If it's less, turn alternator
output adjustment screw counterclockwise and raise the
output voltage specified
6. If it will not adjust to voltage specified, but Output
Tests #1 and #2 were OK, then you'll need to test
battery to alternator cable and ground circuit for
high resistance that could be causing a voltage drop