Running The Engine - Detroit Diesel MBE 4000 Service Manual

11.3

RUNNING THE ENGINE

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11.3 RUNNING THE ENGINE
The following sections cover normal operations:
11.3.1 Battery Charge
The battery charge indicator light must go out once the engine starts.
If the indicator light comes on while the engine is running, do the following:
1. Shut down the engine.
2. Check the poly-V belt for tightness.
To avoid injury from fire, keep all potential ignition sources
away from diesel fuel, including open flames, sparks, and
electrical resistance heating elements. Do not smoke when
refueling.
3. Do a load test on the batteries. Charge or replace the batteries as needed.
4. If necessary, visit the nearest authorized dealer to have the alternator voltage and output
checked.
11.3.2 Oil Pressure
When the engine has reached its normal operating temperature, the engine oil pressure must not
drop below the following values:
250 kPa (36 psi) at rated speed
50 kPa (7 psi) at idling speed
If oil pressure drops below these values, stop the engine and determine the cause.
11.3.3 Excessive Idling
Never allow the engine to idle for more than 30 minutes. Excessive idling can cause oil to leak
from the turbocharger.
11.3.4 Changing the Idle Speed
The rpm range of the MBE 4000 engine is 600 to 850 rpm if the parameters in the VCU are set
to the default range.
Change the idling speed as follows:
11-10
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