MBE 900 ENGINE 2007 OPERATOR'S GUIDE Avoid Unnecessary Idling for four or five minutes. This allows the engine to cool and permits the turbocharger to slow down. After four or five minutes, shut down the engine. Whenever possible, avoid unnecessary idling. During long engine idling periods with the transmission in neutral, the engine coolant temperature may fall below the normal operating range. The incomplete combustion of fuel in a cold engine will cause crankcase oil dilution, formation of lacquer or gummy deposits on the valves, pistons, and rings, and rapid accumulation of sludge in the engine.
When prolonged idling is necessary, maintain at least 850 rpm spring/summer and 1200 rpm fall/winter. Emergency Jump Starting The DDEC VI system operates on 12 volts DC. If a DDEC VI engine with an electric starting motor requires emergency jump starting, do not exceed 16 volts DC. BATTERY EXPLOSION Stopping the Engine To avoid injury from battery explosion when jump starting the engine, do not attach the cable end to the negative terminal of the disabled battery. Stop an engine under normal operating conditions as follows: 1. Reduce engine speed to idle and put all shift levers in the neutral position. NOTICE:
Stopping a turbocharged engine immediately after high-speed operation without allowing a sufficient cool-down period may cause damage to the turbocharger, as it will continue to turn without an oil supply to the bearings. 2. Allow the engine to run between idle and 1000 rpm with no load All information subject to change without notice. (Rev. 04/08) 31 DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION