Briggs & Stratton 30000 SERIES - Manual (Page 16)

16 BRIGGSandSTRATTON.COM
Battery
The installer must supply a sealed, rechargeable 12 Volt DC,
650 Cold Cranking Amps (CCA) 55 amp hour starting
battery. The battery may not be at full charge when installed.
If battery voltage is below 12 Volts, charge the battery. See
Battery in Maintenance for details.
NOTE: DO NOT use a deep-cycle type battery.
Fuel Supply System
Ensure that all fuel pipe connections are tight, secure and
without leaks.
Ensure that all gas line shutoff valves are OPEN and that
adequate fuel pressure is available whenever automatic
operation is desired.
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:
NOTE: Unit has been set-up for natural gas operation at the
factory. Fuel conversion, if needed, must be completed prior
to performing these steps.
1. Set generator’s main circuit breaker to its ON (closed)
position.
2. Confirm 15 Amp fuse is installed in control panel.
3. Set generator’s system switch to AUTO.
4. Push MANUAL OVER-RIDE button on control panel.
NOTE: When the 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 15 seconds, then
pause for 15 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 or coolant 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. No-load voltage should be 239-244 Volts,
frequency should be 59.8 - 60.2 Hz.
NOTE: If AC voltage is outside these ranges, perform the
generator adjustment, Steps 13 and 14 below.
10. 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
117-123 Volts.
11. 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 is correct and within the stated limits.
Generator frequency is fixed and not adjustable
12. If voltage and frequency values are correct, proceed to
step 15.
13. Connect voltmeter as described in step 9 above.
14. While observing voltmeter, adjust alternator voltage
control (A) for 240 volts. DO NOT adjust either of the
other alternator controls.
15. Install alternator circuit breaker enclosure cover.
16. Close all enclosure access doors.
Fuel Conversion
The unit is shipped from the factory calibrated for NG
operation. To convert the engine from NG to LP vapor
operation, follow these steps:
1. Disconnect NEGATIVE battery cable from battery.
2. Set the generator’s main circuit breaker OFF.
3. Set the control panel System switch to OFF.
4. Install O2 sensor into exhaust manifold.
NOTE: Avoid leaving O2 sensor attached for lengthy period.
5. After purging fuel supply line, push MANUAL OVER-
RIDE button on control panel. When the engine starts,
allow it to warm up for a few minutes under no load.
6. Attach a timing light to engine. Loosen distributor
hold-down clamp. While one person observes timing
indicator, a second person adjusts distributor for
20º before top dead center. Tighten distributor hold-
down.
NOTE: If converting from LP to NG, use 32º before top dead
center.
UNDER-FREQ.
ADJUST
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