TESTING - CONTINUED
Observe correct polarity when connecting voltmeter to avoid damage to equipment.
Set load current to 5 amps by adjusting carbon pile at a
test speed of 5,000 RPM. If after one minute, voltage
does not read between 27 volts and 28.5 volts, replace
Test field coil for opens or shorts by connecting ohm-
meter to two field coil wires (17). Replace field coil if
reading is not 7 through 9 ohms.
IL - LOAD CURRENT
IF - FIELD CURRENT
ONLY CONNECT IN-
DICATOR LAMP IF
Test field coil for shorts to frame by connecting ohm-
meter to the (B-) terminal and then to each of the two
field coil wires (17). If readings are not high, field coil
is shorting to frame and replacement is necessary.