OPERATING INSTRUCTIONS FOR STARTING THE ENGINE be used in the summer. Keep the coolant level at the bottom of the filler neck to allow for expansion of the coolant. For more detailed recommendations, refer to How to Select Coolant in the HOW-TO SECTION of this guide. engine startup, the engine lubrication system should be charged with a commercially available pressure pre-lubricator. If this is impractical, rocker covers should be removed and clean lubricating oil should be poured over the rocker arms. The oil should be the same weight and viscosity as that used in the crankcase. After pre-lubricating, add additional oil to bring the level to the proper mark on the dipstick. 3.
Entrapped air must be purged after filling the cooling system. To do this, allow the engine to warm up with the pressure cap removed. With the transmission in neutral, increase engine speed above 1,000 rpm and add coolant to the radiator as required. For lubricant recommendation, refer to the How to Select Lubricating Oil section in this guide. 4. Check to make sure the front of the radiator and air-to-air charge cooler (if equipped) are unblocked and free of debris. Checking the Oil Level Check the oil level as follows: 1. Remove the dipstick from the guide tube.
Note the dipstick has a positive locking device such as a lever or twist-lock design that must be disengaged before pulling the dipstick out of the guide tube. Lubrication System Checks The lubricating oil film on the rotating parts and bearings of a new or newly overhauled engine, or one which has been in storage for six months or more, may be insufficient when the engine is started for the first time. 2. Use a shop rag to wipe off the end of the dipstick. NOTICE: 3. Wait 15 seconds to allow any crankcase pressure to dissipate through the guide tube and let the oil level settle in the oil pan. Insufficient lubrication at startup can cause serious damage to engine components. 4.
Reinstall the dipstick and make sure it is fully inserted into the guide tube. To insure an immediate flow of oil to all bearing surfaces at initial 5. 22 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION