Controls and Operating
3-33
Due to the high fuel pressure, leakage can cause jets of fuel
that penetrates through the skin!
Always consider the high pressure part of the system (accu-
mulator and high pressure lines) as pressurized. The pres-
sure could be as high as 3000 bar. This applies also to an
engine that is not running!
Before working on any of the fuel system components: De-
pressurize the system by use of SDP3 and then untightening
the cylinder high pressure line nut at the accumulator of the
cylinder you are going to work on. Cover the nut with a cloth
during the operation. Use safety glasses and gloves.
Avoid standing closer than 1 m to a running engine. Fuel jets
will diverge within this distance from the source and become
less harmful.
The pressure can be as high as 2400 bar also in an engine
that is not running.
Use SDP3 to de-pressurize the system before working on the
components.
Always wear safety glasses when working on the system.
NOTICE: Never apply 12 or 24 volts directly to terminals on the injector
or engine sensors as they will burn out. Before removing injectors, the
fuel passages must be blown out to prevent fuel flow from entering the
cylinder head.
The machine is equipped with an engine protection derate system,
which records fault codes and illuminates appropriate warning lights
when an out-of-range condition associated with any of the following
sensors is found:
• Coolant temperature
• Oil pressure
• Oil temperature
• Boost pressure
• Boost temperature
The engine power and speed will be gradually reduced depending on
the level of severity of the out-of-range condition. The operator MUST
shut down the engine to avoid serious damage.
The engine should not be restarted after it has been shut down after
activation of the engine protection derate system unless the problem
has been diagnosed and corrected.
WARNING
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