MBE 900 OPERATOR'S GUIDE Important: At outside temperatures below 4°F), a coolant preheater is recommended. HOT COOLANT 1. Chock the tires, place the transmission in neutral, and set the parking brake. To avoid scalding from the expulsion of hot coolant, never remove the cooling system pressure cap while the engine is at operating temperature. Wear adequate protective clothing (face shield, rubber gloves, apron, and boots). Remove the cap slowly to relieve pressure. 2. Turn on the ignition switch and start the engine 3. If the engine doesn't start after 20 seconds, stop. Try again after waiting about one minute. 2.
Then, with the coolant temperature above 50°C (122°F), recheck the coolant level. NOTICE: Do not rev the engine if the oil pressure gauge indicates no oil pressure. To avoid engine damage, shut down the engine if no oil pressure appears within approximately ten seconds. Check to determine the cause of the problem. 3. Add more coolant if necessary. Open the heater valves before adding coolant. 4. Do not close the heater valves until the engine has been run briefly and the coolant level again checked and corrected as necessary. 4. Monitor the oil pressure gauge immediately after starting the engine. Starting an Engine That Has Not Been Run for an Extended Period NOTE:
Do not place the engine under full load until it reaches operating temperature. Before starting an engine which has not been run for an extended period, certain special work must be carried out. Refer to “Storage,” under “Cleaning and Storage.” All information subject to change without notice. (Rev. 04/08) 35 DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION