CNH NEF 445TA and 667TA TIER 3 Electronic Engines Service Manual

Electronic Engines Service Manual WorkShop for NEF 445TA and 667TA TIER 3 Case-New Holland (CNH ) Engines.

Language: English

Format: PDF

Pages: 120

Table of content:

• CASE NEF ENGINE CHART 5
• NEW HOLLAND NEF ENGINE CHART 9
• ENGINES INTRODUCTION 15
• ENGINE IDENTIFICATION CODE 17
• GENERAL INFORMATION: ENGINE F4 18
• ENGINE WALK AROUND 19
• GENERAL F4 (4 CYLINDER) ENGINE FEATURES 24
• GENERAL F4 (6 CYLINDER) ENGINE FEATURES 26
• DESCRIPTION OF THE MAIN MECHANICAL COMPONENTS OF THE ENGINE 28
• CRANKCASE 28
• CRANKSHAFT 28
• CRANKSHAFT 29
• CONNECTING RODS 29
• CONNECTING RODS 30
• PISTONS 31
• CAMSHAFT 31
• CAMSHAFT 32
• EGR Exhaust Gas Recirculation System 33
• VALVE TRAIN 34
• CYLINDER HEAD 35
• VALVES AND VALVE SEATS 36
• VALVE GUIDES 37
• VALVE CONTROL BRIDGES 37
• LOCATING TOP DEAD CENTER FOR 4CYLINDER ENGINES 38
• Adjusting Valve Play for a 4 Cylinder Engine 39
• LOCATING TOP DEAD CENTER FOR 6CYLINDER ENGINES 40
• Adjusting Valve Play for a 6 Cylinder Engine 41
• HEAD MACHINING 42
• TIMING GEARS 43
• ENGINE FLYWHEEL 44
• ACCESSORY EQUIPMENT DRIVE 45
• Poly-V belt removal 45
• LUBRICATION 46
• Engine Oil Cooler 46
• Engine Oil Cooler 47
• Oil pump 47
• Oil pump 48
• Sump (Suspended Oil Pan) 48
• Sump (Suspended Oil Pan) 49
• Conventional Sump (Oil Pan) 50
• Blow-By Recirculation 51
• COOLING 52
• Water pump 53
• Thermostat 53
• TURBOCHARGER 54
• HIGH PRESSURE ELECTRONIC INJECTION SYSTEM (COMMON RAIL) 55
• ELECTRICAL COMPONENTS 56
• HYDRAULIC COMPONENTS –COMMON RAIL SYSTEM 573
• FUEL SYSTEM DIAGRAM GENERAL 58
• FUEL SUPPLY SYSTEM DIAGRAM F4HEENGINES 59
• NORMAL OPERATION:(FUEL FLOW) 60
• MAIN MECHANICAL COMPONENTS OF THE FUEL SUPPLY SYSTEM 62
• Fuel Pre-filter 62
• Fuel filter 63
• Gear Charge Feed Pump 64
• Fuel System Bleeding 66
• High Pressure Pump 67
• Operating principle 69
• High Pressure Regulator 72
• Common Rail (Pressure accumulator) 75
• Common rail pressure relief valve 76
• Electro Injector 77
• Fuel High Pressure Connector 80
• EDC7UC31 SYSTEM MAIN ELECTRICAL AND ELECTRONIC COMPONENTS 81
• EDC7UC31ELECTRONIC ENGINE CONTROL UNIT 82
• Connector Pin Out 83
• Connector (A) – Injectors 84
• Sensors connector (C) 85
• EDC7UC31 ENGINE ELECTRONIC CONTROL PARAMETERS 86
• LIMP HOME RECOVERY STRATEGIES 88
• ENGINE DEGRADATION IN CNH APPLICATIONS – NEF TIER 2 (EXAMPLE) 89
• ENGINE DEGRADATION IN CNH APPLICATIONS – NEF TIER 3 (EXAMPLE) 90
• SENSORS 91
• SPECIAL TOOLS 99
• NEW ENGINE FAMILY (NEF) FUEL SUPPLY / LEAKAGE TEST KIT – 380140055 101
• NEW ENGINE FAMILY (NEF;FAMILY III)–MECHANICAL FUEL SYSTEMS 102
• Section 1: Mechanical Fuel System Description 102
• Section 2: Fuel Leaks at the Advance Piston Cover 103
• Section 3: Fuel Inlet Restriction / Air Entering System 104
• NEW ENGINE FAMILY (NEF;FAMILY III)–ELECTRONIC FUEL SYSTEMS 108
• Section 4: Electronic Fuel System Description 109
• Section 5: Fuel Inlet Restriction / Air Entering System 111
• Section 6: Low Pressure Pump Testing 115
• Section 7: Pressure Relief Valve Testing 117
• Section 8: High Pressure Flow Regulator 118
• Section 9: Fuel Injectors 119

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