Starting and running Charging indicator lamp If the lamp comes on during operation: Engine shutdown 1. Run the engine without a load for a few min- utes if it has been run continuously with a heavy load. Check and adjust the alternator drive belts as described under the corresponding mainte- nance item. See the Maintenance section. 2. Switch off the engine. If the charging indicator lamp is still on, this could be due to an alternator fault or a fault in the electrical system. Note: The battery voltage must remain on for a few seconds after the 15 voltage is switched off so that the control units can store the values and switch to standby mode.
Belt transmission When the belt transmission is new, it may make a squeaking noise when running. The noise is normal and disappears after 50-100 hours of op- eration. 10 prohibited engine shutdowns will cause a torque reduction (70% of fuel quantity). Reset the engine by switching it off correctly once. The noise does not affect the service life of the belt transmission. IMPORTANT! There is risk of post boiling and of damage to the turbocharger if the engine is switched off with- out cooling. Driving at high altitude When driving at high altitudes engine power is reduced automatically due to the lower oxygen content in the air. It is then not possible to run the engine at maximum power.
The power must not be switched off before the engine has stopped. If the engine is equipped with a battery master switch and an SCR system, the SCR system must run for a while after the ignition has been switched off to allow it to cool down. During this period the power must not be cut using the bat- tery master switch. Note: Driving at a higher height than 4,000 metres above sea level is only permitted if it has first been approved by Scania. OPM 300 en-GB 30 © Scania CV AB 2015, Sweden