HOW-TO SECTION make full contact with the adaptor head and no side movement is evident. Tighten filters an additional one-half turn by hand, or as indicated on the filter. NOTICE: Do not allow the fuel level in the see-thru cover to fall below the top of the collar, since this may lead to interruption of the fuel flow and engine stalling. 4. Open the fuel shutoff valve (if installed), start the engine and check for leaks. Shut down the engine before correcting leaks. 2. Start the engine and allow the lubrication system to reach its normal operating pressure, then increase engine speed to high idle for 2 to 3 minutes. NOTE:
If the engine fails to start after replacement of fuel filters, the fuel system will require priming with tool J 5956 or equivalent. Authorized Detroit Diesel distributors are properly equipped to perform this service. 3. After the air is purged and with the engine still running, loosen the vent cap on the filter cover. The fuel level in the cover will start falling. When the fuel level falls to the top of the collar on the Fuel Pro cover, tighten the vent cap quickly by hand . Engines with Fuel Pro Filters Use the following procedure for an engine with Fuel Pro filters. 1. Remove the vent cap from the top of the filter by turning counter-clockwise. Fill the cover full of clean fuel.
After making sure the O-ring seal is installed on the vent plug, reinstall the plug and tighten by hand only. NOTE: If the engine fails to start after replacement of fuel filters, the fuel system will require priming with tool J 5956 or equivalent. Authorized Detroit Diesel distributors are properly equipped to perform this service. NOTICE: To avoid cover or vent dap damage, do not use tools to tighten the vent cap. 88 All information subject to change without notice. DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION