MBE 900 OPERATOR'S GUIDE Excessive Idling Engine power and rpm fall, even though the accelerator pedal remains steady. Never allow the engine to idle for more than 30 minutes. Excessive idling can cause oil to leak from the turbocharger. The exhaust pipe gives off heavy smoke. Changing the Idle Speed The coolant and/or oil temperature climb abnormally. The rpm range of the MBE 900 engine is 600 rpm to 850 rpm if the parameters in the DDEC-VCU are set to the default range. Abnormal sounds suddenly occur in the engine or turbocharger. Shutting Down After Hard Operation Change the idling speed as follows: 1. Turn the cruise control switch to the OFF position. NOTICE: 2.
To increase the idle speed, push the "Resume" switch until the idle is fast enough. After hard operation, if the engine has been running at full output or the coolant temperature has been high, allow the engine to idle for one to two minutes without load. Shutting down the engine without idling may cause damage to the turbocharger. 3. To decrease the idle speed, push the "Decel" switch until the idle is slow enough. Shutting Down the Engine If the engine has been running at full output or the coolant temperature has been high, allow the engine to idle for one to two minutes without load. Then turn off the ignition key switch. Turn off the ignition switch and shut down the engine.
If any the following occur, shut down the engine immediately. The oil pressure swings back and forth or falls sharply. All information subject to change without notice. (Rev. 04/08) 37 DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION