Ron; are you suggesting that the two wires coming
from the field windings should be switched.It charges about 4 or 5 amps but it's turning CCW to get a reading. Thanks Fritz
It should be motoring CW and it should be turned CW to charge.
Try reversing the connection of the field pigtails to the brush holders, spin it CW 1725 RPM and see if it charges.
Ron the Coilman