Operation; Controls - 12Kw Generator - Briggs & Stratton FORTRESS Series Installation And Operation Manual

doing these steps (See Fuel Conversion). Before operating
the generator or putting it into service, inspect the entire
installation carefully. Then, begin testing the system without
any electrical loads connected, as follows:
1. Remove the two screws (A) that secure the circuit
breaker cover to expose unit's circuit breaker.
2. Connect an accurate multi-meter to line side of the
generator's main circuit breaker.

Controls - 12kW Generator

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3. Set the generator's main circuit breaker to the ON
(closed) position.
4. Install the 15 Amp fuse.
5. Push the ON/OFF switch, located on the side of the
generator, to the ON (I) position.
6. Push the START/SELECT button on the control board.
The engine will start in Low Idle Mode (LIM). Push again
to bring the engine to full speed.
NOTICE When the generator is started for the very first
time, it will require that any air in the gaseous fuel lines be
purged. This can cause the engine to run roughly for a few
minutes.
7. Listen for unusual noises, vibration or other indications of
abnormal operation. Look for oil leaks while the engine
runs.
8. Let the engine warm up for approximately 5 minutes to
allow internal temperatures to stabilize.
9. Check the generator output at load side of circuit breaker.
The voltage must be 225 - 250 Volts and the frequency
must be 59 ‑ 61 Hz.
10. Check the generator output between one generator
connection lug and the neutral lug, then between the
other generator connection lug and the neutral lug. In
both cases, voltage reading must be between 112 and
125 Volts.
11. Push the STOP/CONFIG button on the control board. The
engine will enter cool-down mode for approximately 5
minutes. Push again to stop the engine.
12. Install the circuit breaker cover.

Operation