MBE 900 OPERATOR'S GUIDE element out of the prefilter housing. See Figure 41. 4. Clean the cap and the filter element. If the filter element is heavily soiled or damaged, replace it. 7. Bleed the fuel system. NOTICE: Correct torque on the high pressure lines is critical. Incorrect torques could result in leaks or lack of power due to restricted fuel flow. 5. Check the O-ring on the cap and replace it if necessary. 6. Insert the filter element into the prefilter housing and screw the cap onto the housing. Tighten the cap 25 N·m (18 lb·ft ). [a] Make sure that all high-pressure lines have been tightened to 25 N·m (18 lb·ft) and all banjo bolts to 40 N·m (30 lb·ft).
[b] If equipped with a hand pump on the fuel/water separator, work the hand pump 50 times. [c] Crank the engine for 30 seconds at a time, but no longer. Before cranking the engine again, wait at least two minutes. The engine should start within four 30-second attempts. Figure 41 Fuel Prefilter All information subject to change without notice. (Rev. 04/08) 85 DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION