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OPERATION
After starting observe the following:
The ECS System monitors the Shovel's functions and provides
information about the appropriate operational data.
If a FAULT message is displayed on screen (3), the acoustic
warning signal (2) will sound simultaneously for approximately 1
second. In such a case proceed according to the instructions of
the ECS system on page 88.
Warning buzzer (2) will sound continuously when the hydraulic oil
level is too low. In this case, stop the engines, locate and correct
the cause immediately. Fill up hydraulic oil to the correct level.
9. After warming up of the engines, the speed can be increased
by setting switch (4) to high idle speed position.
REMARK
If one Engine fails to work during operation, the Shovel can
be operated with the second Engine as an Emergency Measure,
e.g. for moving the Shovel out of a Danger Area.
Automatic Engine Shut-Down System (Safety Chain)
The engine(s) will automatically be stopped or shifted to low idle
speed as soon as one of the following FAULT or information con-
ditions is being displayed on the ECS screen (3), illust. Z 21758:
Start blocked by main shut-off valve *2)
Start blocked by high pressure filter *1)
Engine shifted to low idle: coolant temperature too high *1)
Engine shutdown: engine oil pressure too low *1)
Engine shutdown: shut-off valve between main hydraulic oil reser-
voir and suction oil reservoir closed. *2)
Engine shutdown: overspeed *1)
Engine shutdown: too high crankcase pressure *1)
Engine shutdown: too low coolant pressure *1)
Engine shutdown: emergency stop switch actuated *2)
Engine shutdown: fire in the power house *2)
Faulty monitor channel for engine speed *1)
Faulty monitor channel for coolant pressure *1)
Faulty monitor channel for coolant temperature *1)
Faulty monitor channel for engine oil pressure *1)
Faulty monitor channel for hydraulic oil temperature *2)
# No clearance for starting, shift engines to low idle speed *2)
*1) Concerned Engine only
*2) Both Engines
REMARK
If a fault message High pressure filter or pump restricted
appears on display (3), the concerned engine will automatically
be shifted to low idle speed.
Never let the engines run with disconnected batteries. This
may cause alternator damage.
CAUTION
3.9 STARTING THE ENGINES
225
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