Operational Mode ..................................................................................................119 DPF System Vehicle Mounting..............................................................................120 COMPONENT PART NUMBER LOCATOR ..........................................................121 Engine, Right-Side View ......................................................................................121 Engine, Left-Side View .........................................................................................123 Engine, Front View................................................................................................124 Engine Sensors ......................................................................................................125 ENGINE DISASSEMBLED VIEW AND PART NUMBERS .................................126 Upper Engine Components....................................................................................126 Rear Engine Components ......................................................................................128 Oil Pan and Stiffing Frame ....................................................................................130 Lower Engine Components....................................................................................132 Replacement Kits.......................................................................................................134 Engine Replacement Kits.......................................................................................134 BASIC SERVICE.........................................................................................................136 Maintenance...............................................................................................................136 Oil Level Check.....................................................................................................136 Oil and Filter Change Procedure ...........................................................................137 Crankcase Ventilation System................................................................................137 Fuel Filter Replacement.............................................................................................138 Filter Description ...................................................................................................138 Fuel Filter Replacement.........................................................................................139 Water Separating Pre-Filter Replacement..............................................................139 Full-Flow Main Filter Replacement.......................................................................140 Cooling System Maintenance ....................................................................................140 Coolant Drain Outlets ............................................................................................140 Coolant Filter .........................................................................................................141 Exhaust Aftertreatment System Maintenance............................................................143 Diesel Particulate Filter..........................................................................................143 Compact Unit.........................................................................................................143 Vertical Back-of-Cab Unit .....................................................................................147 Aftertreatment Fuel Injector (AFI) ........................................................................152 Drive Belt Replacement and Tensioning ...................................................................158 General Information...............................................................................................158 Automatically Tensioned System ..........................................................................158 Valve and Unit Injector Adjustment ..........................................................................159 General Information...............................................................................................160 Inlet Valve Adjustment ..........................................................................................161 Unit Injector Adjustment .......................................................................................162 Exhaust Valve Adjustment (WITHOUT Volvo Engine Brake) .............................163 Exhaust Valve Adjustment (WITH Volvo Engine Brake) .....................................164 Continuation of Adjustments.................................................................................167 Operational Check .................................................................................................168 Glossary ........................................................................................................................169 GLOSSARY OF TERMS ..........................................................................................169