Power Tech Generators PTRV-17.5K Operator's & Installation Manual page 53

ZERO or LOW
VOLTAGE
Check Main
Breakers are
"ON"
OFF
ON
Main Coil
Turn "ON"
Output to
OK
Breaker / s
Breakers
BAD
Wiring To Defective
Panel Breaker / s
BAD Check Ohm's OK
On Main
Check Brushes
Stator Leads
if
Replace
Applicable
Stator
Check Rotor
Ohm's