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18 Section 2 Generator Set Operation TP-6843 1/13
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.
2.3 Exercising the Generator Set
Operate the generator set without load once each
week or every 2 weeks for 20 minutes. See Section
2.5, Exercise. For instructions to set the exerciser, see
Section 3.6.
2.4 Generator Set Operation
2.4.1 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.
2.4.2 Remote Starting and Stopping
The generator set must be in automatic mode for
remote operation. Press the AUTO button on the VSC
controller.
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.
2.4.3 Engine Start Crank Cycle
The controller attempts to start the generator set three
times (three crank cycles, 15 seconds crank and
15 seconds off). If the generator set does not start in
three attempts, the system shuts down on an
overcrank fault. See Section 2.6.
Cranking 1, 2, and 3 are displayed during the crank
cycle. Pressing the OFF button during the crank cycle
stops the cranking. No other buttons are
acknowledged during the crank cycle.
2.4.4 Engine Cooldown
The engine cooldown time delay allows the engine to
run after the loads have been removed.
The engine cooldown time delay is set to 5 minutes.
The engine stops before the cooldown time delay
expires if the temperature drops below the
cooled-down temperature level, or if the temperature
rises above the high limit during the cooldown cycle.
2.4.5 Automatic Operation
The 6VSG monitors the voltage of a storage battery
bank connected to (+) and (–) of the output block to
determine charge condition of the storage battery (see
Figure 2-3).
• If the storage battery voltage falls below the
minimum voltage for more than 3 minutes, or if a
remote start command is received, the generator
set starts. A remote start command can be
activated by closing the remote start contacts
across 3 and 4 or by a start exercise command.
• When the generator set load falls below the
minimum % load for more than 3 minutes, or a
remote stop command is received, the generator set
stops. A remote stop command can be caused by
opening the remote start contacts across 3 and 4 or
by the exercise time ending.
The minimum voltage, minimum load, and time delays
are adjustable using a personal computer and Kohler
®
SiteTech
™
software. Contact your Kohler distributor.