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AR-EXP-CUMMINS-07-00 OWNERS MANUAL
Page 19
generator.
8. Turn ON electrical loads. Apply an electrical load equal to
the full rated wattage/amperage capacity of the installed
generator.
9. Connect an accurate AC frequency meter across terminal
lugs . Voltage should be +/- 1.5% of the specificated, and
frequency +/- 4.0% of the specificated on the unit.
10. Let the generator run at full rated load for 20-30 min-
utes. Listen for unusual noises, vibration or other indica-
tions of abnormal operation. Check for oil leaks, evidence of
overheating, etc.
11. When testing under load is complete, turn OFF electrical
loads.
12. Set the generator's main circuit breakers to their OFF
(or open) positions.
13. Let the engine run at no-load for a few minutes.
14. Set the Start/stop switch to stop. The engine should
shut down.
6.3. CHECKING AUTOMATIC OPERATION
To check the system for proper automatic operation, pro-
ceed as follows:
1. Check that the Start/stop switch is set to stop.
2. Manually set the transfer switch to the UTILITY position,
i.e., load terminals connected to the utility power source
side.
3. Turn ON the utility power supply to the transfer switch,
using the means provided (such as a utility main line circuit
breaker).
4. Set the Start/stop switch to manual. The engine should
crank and start when the remote start input is activated.
5. Turn OFF the utility power supply to the transfer switch.
With the Start/stop switch at AUTO, the engine should crank
and start when the utility source power is turned OFF. After
starting, the transfer switch should connect load circuits to
the standby side. Let the system go through its entire auto-
matic sequence of operation.
With the generator running and loads powered by generator
AC output, turn ON the utility power supply to the transfer
switch. The following should occur:
• After about six seconds, the switch should transfer
loads back to the utility power source.
• About one minute after retransfer, the engine should
shut down.
Check the installation and application data charts for any
additional information.