Perkins 5006A-E23TA Operation And Maintenance Manual page 39

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d. After the engine has run for 5 minutes, check
the engine monitoring systems. Ensure that the
engine is operating correctly before the load is
applied.
Adaptive Cylinder Cutout and Cranking
(ACCC)
If a change in the engine noise is noticed with the
engine running, it may be due to the Adaptive
Cylinder Cutout and Cranking (ACCC) configuration.
ACCC is used to control combustion during cold
start, low idle, and low load conditions by only
activating selected cylinders during these conditions.
ACCC helps maintain consistent power and
reduction in white smoke.
ACCC configuration defines cylinder cutout for cold
cranking and cold running conditions. This
configuration electronically disables cylinder(s),
which improves fuel efficiency by controlling the fuel
delivery to the injectors. This action does not
compromise engine power output.
Alternative Engine Starting
Procedure
Note: For a new engine, or when a long block has
been obtained and rebuilt in service, or after a major
overall, Perkins recommends following the procedure
below:
Note: When possible, ensure that the engine is not
started under load.
1. After completion of the installation process, prime
the fuel system and the lubricating oil system.
Refer to Operation and Maintenance Manual for
more information.
2. Turn the keyswitch to the START position. Crank
the engine. Observe the engine oil pressure. Do
not start the engine. Hold the keyswitch in this
position until the oil pressure gauge indicates
30 kPa (4.35 psi).
3. If oil pressure is achieved during cranking the
engine, start the engine. Turn the keyswitch to the
START position. The engine should start
immediately. Operate the engine for 1 minute,
continue to monitor the engine oil pressure.
4. Stop the engine. Inspect the engine for leaks from
the fuel, coolant, and lubricating oil systems.
a. If no leaks are present, proceed to step 5.
b. If leaks are present, repair the leaks. Repeat
Step 3 to Step 4.
5. Start the engine. Operate the engine for 1 minute.
Monitor the engine oil pressure. Continue to
operate the engine with no load applied for 4
minutes. The total time period for this operation is
5 minutes.
Note: After the engine has run for 5 minutes, check
the engine monitoring systems. Ensure that the
engine is operating correctly before the load is
applied.
6. Increase the engine load to 50 percent of prime
power over a 60 second time period. Operate the
engine for 20 minutes at 50 percent engine load.
7. Increase the engine load to 100 percent of prime
power over a 90 second time period. Operate the
engine for 20 minutes at 100 percent engine load.
8. Gradually remove all the engine load over a 60
second time period.
9. Operate the engine off load for a time period of 4
minutes to reduce the operating temperature of
the engine.
10. Stop the engine. Inspect the engine for leaks from
the fuel, coolant, and lubricating oil systems.
Cold Weather Starting
Do not use aerosol types of starting aids such as
ether. Such use could result in an explosion and
personal injury.
Note: Perkins does not recommend that the engine
is installed in an application where the ambient
temperature is below 0° C (32° F), unless the
engines are installed in a heated environment.
Follow the recommendations that are detailed below
will improve cold starting and reduce white smoke
emissions.
Startability will be improved at temperatures below
10 °C (50 °F) from the use of a jacket water heater.
The use of space heaters.
No load operation and or multiple start/stop events in
colder ambient conditions can cause the emission of
white smoke from the exhaust. The emission of white
smoke from the exhaust is a result of partly unburnt
fuel due to the low cylinder temperatures. No load
operation should be avoided and multiple start/stop
events kept to a minimum.
39
Operation Section
Cold Weather Starting
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