Perkins 4006 TRS Gas Operation And Maintenance Manual page 34

34
Operation Section
Starting the Engine
Consult your Perkins dealer for more information on
the starting aids that are available for cold weather
starting.
Starting the Engine
Engine exhaust contains products of combustion
which may be harmful to your health. Always
start and operate the engine in a well ventilated
area and, if in an enclosed area, vent the exhaust
to the outside.
NOTICE
For initial start-up of a new or rebuilt engine, and for
start-up of an engine that has been serviced, make
provision to shut the engine off should an overspeed
occur. This may be accomplished by shutting off the
fuel supply and/or the ignition to the engine.
Unburned gas in the air inlet and exhaust system
may ignite when the engine is started. Personal
injury and/or property damage may result.
Before starting an engine that may contain un-
burned gas, purge the unburned gas from the air
inlet and exhaust system. Refer to the topic on
purging unburned gas in the " " Starting the Engine" "
section.
The OEM will supply this system. Refer to the OEM
for more information.
Note: Using the "EMERGENCY STOP" button will
shut off both the fuel and the ignition.
Do not start the engine or move any of the controls if
there is a "DO NOT OPERATE" warning tag or similar
warning tag attached to the start switch or to the
controls.
Ensure that no one will be endangered before the
engine is started and when the engine is started.
Perform the procedures that are described in this
Operation and Maintenance Manual, "Before Starting
Engine" (Operation Section).
Final Checks and First Engine Start
Note: The fuel system must comply with all local
regulations.
The OEM will supply this system. Refer to the OEM
for more information.
1. The starting and the stopping of the engine must
be on no load.
2. The procedure for starting and stopping a radiator
cooled and CHP gas engine will be determined by
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the OEM relative to each individual engine
installation.
3. Operate the engine at rated speed for ten minutes.
4. Inspect the engine for leaks in the oil system and
the coolant systems.
5. Stop the engine and check the engine oil and the
engine coolant level.
6. Operate the engine under normal working
conditions. Check the gauges in order to see the
condition of the engine.
7. If the engine fails to start after two attempts turn off
the gas supply and investigate the cause.
Purging Unburned Gas
The following events cause unburned gas to remain
in the air inlet and in the exhaust manifold:
• Emergency stop
• Engine overspeed
• Unsuccessful successive attempts to start the
engine
Unburned gas may remain in the air inlet and exhaust
system after several unsuccessful attempts to start
the engine. The unburned gas may increase to a
concentration that may ignite during a successive
attempt to start the engine.
Perform the following procedure in order to purge the
unburned gas:
1. Turn the manual gas shutoff valve to the CLOSED
position.
2. Disable the ignition system. Remove the fuses
from the ignition.
3. Turn the engine control switch to the START
position. Crank the engine for a minimum of six
seconds.
4. Enable the ignition by connecting the fuses that
was disconnected in Step 2.
5. Turn the manual gas shutoff valve to the OPEN
position.
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