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TP-6880 2/21 21Section 2 Generator Set Operation
Hot surfaces.
CAUTION
Remind family members, children, and visitors to use
caution near the generator set. Generator sets
connected to automatic transfer switches will start
automatically during exercise periods and power
outages. Some generator components become hot
when the generator is running and remain hot for a time
after the generator set shuts down.
To ensure continued satisfactory operation, perform the
following checks or inspections before or at each
startup, as designated, and at the intervals specified in
the service schedule. In addition, some checks require
verification after the unit starts.
Air Cleaner. Check for a clean and installed air cleaner
element to prevent unfiltered air from entering the
engine.
Air Inlets. Check for clean and unobstructed air inlets.
Battery. Check for tight battery connections. Consult
the battery manufacturer’s instructions regarding
battery care and maintenance.
Exhaust System. Check for exhaust leaks and
blockages. Check the muffler condition.
Inspect the exhaust system components for cracks,
leaks, and corrosion. Check for tight exhaust system
connections.
Check for corroded or broken metal parts and replace
them as needed.
Check that the exhaust outlet is unobstructed.
Oil Level. Check the oil level before starting the
generator set and at the intervals given in Section 4,
Scheduled Maintenance. Maintain the oil level at or
near, not over, the full mark on the dipstick.
Operating Area. Check for obstructions that could
block the flow of cooling air. Keep the air intake area
clean. Do not leave rags, tools, or debris on or near the
generator set.
2.2 Exercising the Generator Set
Operate the generator set without load once each week
for 20 minutes. See Section 2.4 for information about
loaded and unloaded exercise modes. For instructions
to set the exerciser, see Section 3.6.
2.3 Generator Set Operation
2.3.1 Local Starting and Stopping
Start: Press the RUN button to immediately start the
generator set.
Stop: Press the OFF button. The engine stops.
Run the generator set with no load for at least 2 minutes
to ensure adequate engine cooldown.
2.3.2 Automatic Starting and Stopping
An automatic transfer switch monitors the utility power
and signals the generator set to start when utility power
is lost. The ATS then transfers the load to the generator
set.
When utility power is restored, the transfer switch
transfers the load back to utility, runs the generator set
with no load to cool down the engine, and then stops the
generator set.
2.3.3 Remote Starting and Stopping
A remote switch connected to terminals 3 and 4 can be
used to start and stop the generator set. Close the
switch to start and run the generator set. Open the
switch to stop the generator set.
Run the generator set with no load for at least 2 minutes
to ensure adequate engine cooldown.
2.3.4 Emergency Stop Switch
The generator set may be connected to an optional
emergency stop switch. See Figure 2-1. The
Emergency Stop Switch may be mounted near the
generator set or in a remote location. If the emergency
stop button is activated, the controller display will show
Emerg Stop Shutdwn.
Emergency Stop Switch Operation
Press the red STOP button to shut down the
generator set in an emergency.
Using the emergency stop button bypasses the engine
cooldown cycle, stopping the engine immediately. The
controller emergency stop lamp lights (if equipped) and
the unit shuts down. The generator set cannot be
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