Briggs & Stratton 18000 - Manual (Page 16)

4 BRIGGSandSTRATTON.COM
Initial Start-up (No Load)
Before operating the home generator or placing it into
service, inspect the entire installation carefully.
Then begin testing the system without any electrical loads
connected, as follows:
. Set generator’s main circuit breaker to its ON (closed)
position.
2. Install 5 Amp fuse in control panel.
3. Set generator’s system switch to AUTO.
4. Push MANUAL OVER-RIDE button on control panel.
NOTE: When the home generator is started for the very
first time, it will require that air in the gaseous fuel lines be
purged. This may take a few minutes.
5. DO NOT crank engine for more than 0 seconds, then
pause for 0 seconds to reduce heat in the starter.
6. Repeat process until engine starts.
7. Listen for unusual noises, vibration or other indications
of abnormal operation. Check for oil leaks while engine
runs.
8. Let engine warm up for about five minutes to allow
internal temperatures to stabilize.
9. Connect an accurate AC voltmeter and a frequency
meter to check generator output at load side of circuit
breaker. Voltage should be 239-262 Volts, frequency
should be 62.0 - 62.5 Hz.
NOTE: If either parameter is outside these ranges, perform
the Engine Adjustments described below.
0. Check generator output between one of the generator
connection lugs and the neutral lug, then between the
other generator connection lug and the neutral lug.
In both cases, voltage reading should be between
9-3 Volts.
. Push and hold MANUAL OVER-RIDE button on control
panel again until engine stops.
IMPORTANT: DO NOT proceed until you are certain that
generator AC voltage and frequency are correct and within
the stated limits. To obtain the proper generator frequency,
see Engine Adjustments.
Engine Adjustment
Each home generator unit leaves the factory set for either
NG or LP gas operation. There are regional variances in the
composition of natural gas. If the generator output voltage
or frequency measured during Initial Start-Up (paragraph #9)
is outside the listed ranges, the combustibility of the gas
supplied at the installation site may be substantially different
from the fuel used at the factory.
To adjust the engine for this difference, proceed as follows.
. Open the oil drain and control panel access doors.
2. Remove the four screws that hold the circuit breaker
cover to the air intake guard.
3. Connect an accurate frequency meter to the line side of
the generator’s main circuit breaker.
4. Ensure that the 5 Amp fuse is installed.
5. Set the generator’s main circuit breaker ON.
6. Set the generator’s system switch to AUTO.
7. Push MANUAL OVER-RIDE button on control panel.
When the engine starts, allow it to warm up for five
minutes.
8. Normal no load frequency is 62.0 to 62.5 Hz. If
adjustment is needed at no load, slowly rotate the
governor adjustment screw (A) clockwise and/or
counterclockwise until frequency is 62.0 to 62.5 Hz.
A