374D and 390D Excavators Machine Electronic Control System
– Calibration
– Calibration Errors
– Diagnostic Capabilities
– Diagnostic Code List
– Diagnostic Operation
– Electrical Component and Connector Locations
– Electrical Connector – Inspect
– Electronic Control Module (ECM) – Configure
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– Electronic Control Module (Machine)
– Emerging Symptom Information
– Event Code List
– General Information
– General Information
– Glossary of Electrical Terms
– Joystick Control
– MID 039 – CID 0041 – FMI 06
– MID 039 – CID 0167 – FMI 12
– MID 039 – CID 0168 – FMI 05
– MID 039 – CID 0190 – FMI 08
– MID 039 – CID 0246 – FMI 12
– MID 039 – CID 0247 – FMI 12
– MID 039 – CID 0248 – FMI 12
– MID 039 – CID 0254 – FMI 12
– MID 039 – CID 0271 – FMI 06
– MID 039 – CID 0291 – FMI 03
– MID 039 – CID 0291 – FMI 05
– MID 039 – CID 0291 – FMI 06
– MID 039 – CID 0295 – FMI 02
– MID 039 – CID 0295 – FMI 09
– MID 039 – CID 0295 – FMI 12
– MID 039 – CID 0374 – FMI 03
– MID 039 – CID 0374 – FMI 05
– MID 039 – CID 0374 – FMI 06
– MID 039 – CID 0466 – FMI 03
– MID 039 – CID 0466 – FMI 04
– MID 039 – CID 0466 – FMI 08
– MID 039 – CID 0467 – FMI 03
– MID 039 – CID 0467 – FMI 04
– MID 039 – CID 0467 – FMI 08
– MID 039 – CID 0485 – FMI 03
– MID 039 – CID 0485 – FMI 05
– MID 039 – CID 0485 – FMI 06
– MID 039 – CID 0581 – FMI 03
– MID 039 – CID 0581 – FMI 05
– MID 039 – CID 0581 – FMI 06
– MID 039 – CID 0586 – FMI 05
– MID 039 – CID 0586 – FMI 12
– MID 039 – CID 0588 – FMI 09
– MID 039 – CID 0588 – FMI 12
– MID 039 – CID 0590 – FMI 09
– MID 039 – CID 0598 – FMI 03
– MID 039 – CID 0598 – FMI 05
– MID 039 – CID 0598 – FMI 06
– MID 039 – CID 0600 – FMI 04
– MID 039 – CID 0790 – FMI 03
– MID 039 – CID 0790 – FMI 04
– MID 039 – CID 0790 – FMI 08
– MID 039 – CID 0864 – FMI 03
– MID 039 – CID 0864 – FMI 04
– MID 039 – CID 0864 – FMI 08
– MID 039 – CID 1118 – FMI 03
– MID 039 – CID 1118 – FMI 05
– MID 039 – CID 1118 – FMI 06
– MID 039 – CID 1121 – FMI 03
– MID 039 – CID 1121 – FMI 05
– MID 039 – CID 1121 – FMI 06
– MID 039 – CID 1125 – FMI 03
– MID 039 – CID 1125 – FMI 04
– MID 039 – CID 1125 – FMI 08
– MID 039 – CID 1126 – FMI 03
– MID 039 – CID 1126 – FMI 04
– MID 039 – CID 1126 – FMI 08
– MID 039 – CID 1127 – FMI 03
– MID 039 – CID 1127 – FMI 04
– MID 039 – CID 1127 – FMI 08
– MID 039 – CID 1128 – FMI 03
– MID 039 – CID 1128 – FMI 04
– MID 039 – CID 1128 – FMI 08
– MID 039 – CID 1129 – FMI 03
– MID 039 – CID 1129 – FMI 04
– MID 039 – CID 1129 – FMI 08
– MID 039 – CID 1130 – FMI 03
– MID 039 – CID 1130 – FMI 04
– MID 039 – CID 1130 – FMI 08
– MID 039 – CID 1138 – FMI 03
– MID 039 – CID 1138 – FMI 05
– MID 039 – CID 1138 – FMI 06
– MID 039 – CID 1139 – FMI 03
– MID 039 – CID 1139 – FMI 05
– MID 039 – CID 1139 – FMI 06
– MID 039 – CID 1140 – FMI 03
– MID 039 – CID 1140 – FMI 05
– MID 039 – CID 1140 – FMI 06
– MID 039 – CID 1141 – FMI 03
– MID 039 – CID 1141 – FMI 05
– MID 039 – CID 1141 – FMI 06
– MID 039 – CID 1142 – FMI 03
– MID 039 – CID 1142 – FMI 05
– MID 039 – CID 1142 – FMI 06
– MID 039 – CID 1143 – FMI 03
– MID 039 – CID 1143 – FMI 05
– MID 039 – CID 1143 – FMI 06
– MID 039 – CID 1144 – FMI 03
– MID 039 – CID 1144 – FMI 05
– MID 039 – CID 1144 – FMI 06
– MID 039 – CID 1145 – FMI 03
– MID 039 – CID 1145 – FMI 05
– MID 039 – CID 1145 – FMI 06
– MID 039 – CID 1145 – FMI 13
– MID 039 – CID 1146 – FMI 03
– MID 039 – CID 1146 – FMI 05
– MID 039 – CID 1146 – FMI 06
– MID 039 – CID 1149 – FMI 03
– MID 039 – CID 1149 – FMI 05
– MID 039 – CID 1149 – FMI 06
– MID 039 – CID 1150 – FMI 03
– MID 039 – CID 1150 – FMI 05
– MID 039 – CID 1150 – FMI 06
– MID 039 – CID 1159 – FMI 03
– MID 039 – CID 1159 – FMI 05
– MID 039 – CID 1159 – FMI 06
– MID 039 – CID 1160 – FMI 03
– MID 039 – CID 1160 – FMI 05
– MID 039 – CID 1160 – FMI 06
– MID 039 – CID 1163 – FMI 03
– MID 039 – CID 1163 – FMI 05
– MID 039 – CID 1163 – FMI 06
– MID 039 – CID 1164 – FMI 03
– MID 039 – CID 1164 – FMI 05
– MID 039 – CID 1164 – FMI 06
– MID 039 – CID 1165 – FMI 03
– MID 039 – CID 1165 – FMI 05
– MID 039 – CID 1165 – FMI 06
– MID 039 – CID 1166 – FMI 03
– MID 039 – CID 1166 – FMI 05
– MID 039 – CID 1166 – FMI 06
– MID 039 – CID 1191 – FMI 07
– MID 039 – CID 1192 – FMI 07
– MID 039 – CID 1193 – FMI 03
– MID 039 – CID 1193 – FMI 05
– MID 039 – CID 1193 – FMI 06
– MID 039 – CID 1657 – FMI 03
– MID 039 – CID 1657 – FMI 04
– MID 039 – CID 1657 – FMI 08
– MID 039 – CID 1658 – FMI 03
– MID 039 – CID 1658 – FMI 04
– MID 039 – CID 1658 – FMI 08
– MID 039 – CID 1658 – FMI 13
– MID 039 – CID 1969 – FMI 03
– MID 039 – CID 1969 – FMI 04
– MID 039 – CID 1969 – FMI 08
– MID 039 – CID 2103 – FMI 03
– MID 039 – CID 2103 – FMI 05
– MID 039 – CID 2103 – FMI 06
– MID 039 – CID 2269 – FMI 03
– MID 039 – CID 2269 – FMI 05
– MID 039 – CID 2269 – FMI 06
– MID 039 – CID 2280 – FMI 03
– MID 039 – CID 2300 – FMI 09
– MID 039 – CID 2997 – FMI 03
– MID 039 – CID 2997 – FMI 04
– MID 039 – CID 2997 – FMI 08
– MID 039 – CID 3043 – FMI 03
– MID 039 – CID 3043 – FMI 05
– MID 039 – CID 3043 – FMI 06
– MID 039 – CID 3044 – FMI 03
– MID 039 – CID 3044 – FMI 05
– MID 039 – CID 3044 – FMI 06
– Pedal Control
– Related Components
– Relays
– Sensors
– Service Tools
– Solenoids
– Switches
– Symptom Troubleshooting
– System Operation – System Operation
– System Schematic
– Using Caterpillar Electronic Technician to Determine
– Using the Operator Monitor to Determine Diagnostic Codes
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Air Conditioning and Heating R134a for All Caterpillar Machines
– Refrigerant Compressor
– System Capacities for Refrigerant (Off-Highway Trucks)
– General Information
– Identifying the Refrigerant
– Identifying the Air Conditioning System
– Identifying the Heating System
– Refrigerant Expansion Valve System
– Refrigerant Orifice Tube System
– Refrigerant Compressor
– Refrigerant Condenser
– Refrigerant Receiver-Dryer
– Refrigerant Compressor
– Refrigerant Expansion Valve
– In-line Refrigerant Dryer
– Refrigerant Orifice Tube Assembly
– Evaporator Coil
– Refrigerant Accumulator
– Refrigerant Compressor Protection System
– Temperature Control
– Pressure Switch (Refrigerant)
– Cab Pressurization and Filtration System
– Condensate Drainage System
– Refrigerant Compressor
– Service Intervals
– Glossary of Terms
– Required Tools
– Machine Preparation for Troubleshooting
– General Troubleshooting Information
– General Troubleshooting Information
– Visual Inspection (Troubleshooting)
– Air Conditioning System Troubleshooting
– Heating System Troubleshooting
– Automatic Temperature Control System (ECM Controlled)
– Refrigerant Compressor
– Troubleshooting Heating and Air Conditioning Control System
– Troubleshooting Heating and Air Conditioning Control System
– Automatic Temperature Control Panel Troubleshooting – 584
– Troubleshooting Condensate Drainage System
– Machine Preparation for Testing and Adjusting
– Air Conditioning Performance – Test
– Refrigerant Leakage – Test
– Manifold Gauge Set (Refrigerant) – Install
– Refrigerant Recovery
– Refrigerant System – Flush
– Refrigerant Compressor
– Refrigerant Oil – Test
– Refrigerant Compressor – Test
– Refrigerant System – Evacuate
– Refrigerant System – Charge
– Manifold Gauge Set (Refrigerant) – Remove
– Compressor Protection System – Test
– Electronic Heat Control – Test
– Heater Performance – Test
– Heating and Air Conditioning Service Publications
– General Information
– Refrigerant Compressor
– Machine Preparation for Disassembly and Assembly
– Air Conditioner Lines – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Accumulator – Remove and Install
– Refrigerant Expansion Valve – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– In-Line Refrigerant Dryer – Remove and Install
– Refrigerant Orifice Tube Assembly – Remove and Install
– Refrigerant Compressor
– System Capacities for Refrigerant (Motor Graders)
– System Capacities for Refrigerant (Off-Highway Trucks) –
– Refrigerant Compressor
Air Conditioning and Heating
– Actuator (Air Conditioner Control)
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioning and Heating System Sensor Operation
– Air Conditioning E11 – Recirculation Sensor (Open Circuit)
– Air Conditioning E12 – Recirculation Sensor (Short Circuit)
– Air Conditioning E13 – Fresh Air Sensor (Open Circuit)
– Air Conditioning E14 – Fresh Air Sensor (Short Circuit)
– Air Conditioning E15 – Water Temperature Sensor (Open
– Air Conditioning E16 – Water Temperature Sensor (Short
– Air Conditioning E21 – Evaporator Sensor (Open Circuit)
– Air Conditioning E22 – Evaporator Sensor (Short Circuit)
– Air Conditioning E43 – Damper (Air Outlet)
– Air Conditioning E44 – Damper Error
– Air Conditioning System
– Air Conditioning System
– Air Conditioning System Troubleshooting
– Air Conditioning System Troubleshooting
– Blower Motor
– Blower Motor
– Control Module
– Control Module – Heater Only
– Control Panel (Air Conditioner and Heater)
– Control Panel (Cab Heater)
– Evaporator Coil
– General Information
– General Troubleshooting Information
– Heater Core (Cab)
– Heater System (Cab) – Heater Only
– Heating System Troubleshooting
– Machine Preparation for Troubleshooting
– Manifold Gauge Set (Refrigerant) – Install
– Manifold Gauge Set (Refrigerant) – Remove
– Pressure Switch (Refrigerant Pressure Cutoff)
– Pressure Switch (Refrigerant Pressure Cutoff)
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor Oil – Check
– Refrigerant Condenser
– Refrigerant Condenser
– Refrigerant Expansion Valve
– Refrigerant Leakage – Test
– Refrigerant Receiver-Dryer
– Refrigerant Recovery
– Refrigerant System – Charge
– Refrigerant System – Evacuate
– Refrigerant System – Flush
– Required Tools
– Speed Control
– System Capacities for Refrigerant (Excavators) – 307D to 390D
– Troubleshooting Faults With Service Codes
– Visual Inspection
Disassembly and Assembly 374D Excavator C15 Engine Supplement
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Battery – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Electric Starting Motor – Remove and Install
– Enclosure (Cooling System Package) – Remove and Install
– Engine – Remove and Install
– Engine Electronic Control – Remove and Install
– Engine Enclosure – Remove and Install
– Engine Front Mount – Remove and Install
– Engine Oil Cooler – Remove and Install
– Engine Oil Filter Base – Assemble
– Engine Oil Filter Base – Disassemble
– Engine Oil Filter Base – Remove and Install
– Engine Rear Mount – Remove and Install
– Fan – Remove and Install
– Fan Drive – Assemble
– Fan Drive – Disassemble
– Fan Drive – Remove and Install
– Fan Group (Includes Fan, Fan Guard, Fan Shroud, and
– Fan Guard – Remove and Install
– Fuel Cooler – Remove and Install
– Fuel Filter (Secondary) and Fuel Filter Base – Remove and
– Fuel Filter and Water Separator Base – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Muffler – Remove and Install
– Precleaner – Remove and Install
– Radiator – Remove and Install
– Radiator and Hydraulic Oil Cooler – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– System Pressure – Release
– Turbocharger – Remove and Install
– Water Pump – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 374D Excavator Machine Systems
– Accumulator (Hydraulic Pilot) – Remove and Install
– Actuator Motor (Air Distributor) – Remove and Install
– Blower Motor (Air Conditioner, Heater) – Remove and Install
– Boom – Remove and Install
– Boom Bearings and Seals – Remove and Install
– Boom Cylinder – Remove and Install
– Bucket – Remove and Install
– Bucket Cylinder – Remove and Install
– Bucket Linkage – Remove and Install
– Bucket Linkage Bearings and Seals – Remove and Install
– Cab – Remove and Install
– Check Valve (Counterweight Circuit) – Assemble
– Check Valve (Counterweight Circuit) – Disassemble
– Check Valve (Counterweight Circuit) – Remove and Install
– Control Manifold (Pilot Oil) – Assemble
– Control Manifold (Pilot Oil) – Disassemble
– Control Manifold (Pilot Oil) – Remove and Install
– Control Module (Automatic Temperature Control Unit) –
– Control Valve (Counterweight Circuit) – Assemble
– Control Valve (Counterweight Circuit) – Disassemble
– Control Valve (Counterweight Circuit) – Remove and Install
– Coolant Temperature Sensor – Remove and Install
– Counterbalance Valve (Travel) – Assemble
– Counterbalance Valve (Travel) – Disassemble
– Counterbalance Valve (Travel) – Remove and Install
– Counterweight – Remove and Install – With Hydraulic
– Counterweight Cylinder – Remove and Install
– Cylinder Pressure Release – Boom Lowering Control Valve
– Drift Reduction Valve (Boom) – Assemble
– Drift Reduction Valve (Boom) – Disassemble
– Drift Reduction Valve (Boom) – Remove and Install
– Drift Reduction Valve (Stick) – Assemble
– Drift Reduction Valve (Stick) – Disassemble
– Drift Reduction Valve (Stick) – Remove and Install
– Duo-Cone Conventional Seals – Install
– Evaporator Coil – Remove and Install
– Final Drive – Assemble
– Final Drive – Disassemble
– Final Drive – Remove and Install
– Front Idler and Recoil Spring – Remove and Install
– Fuel Tank – Remove and Install
– Gear Pump (Pilot) – Assemble
– Gear Pump (Pilot) – Disassemble
– Gear Pump (Pilot) – Remove and Install
– Heater Core – Remove and Install
– Heating and Air Conditioning Unit – Remove and Install
– Hydraulic Lockout Control – Assemble
– Hydraulic Lockout Control – Disassemble
– Hydraulic Lockout Control – Remove and Install
– Hydraulic Tank and Filter – Remove and Install
– Hydraulic Track Adjusters – Assemble
– Hydraulic Track Adjusters – Disassemble
– Hydraulic Track Adjusters – Remove and Install
– Joystick Control – Remove and Install – Left Hand
– Joystick Control – Remove and Install – Right Hand
– Main Control Valve – Assemble
– Main Control Valve – Assemble – Attachment, Bucket, and
– Main Control Valve – Assemble – Manifold Valve
– Main Control Valve – Assemble – Proportional Valve
– Main Control Valve – Assemble – Right Travel, Left Travel, and
– Main Control Valve – Disassemble
– Main Control Valve – Disassemble – Attachment, Bucket, and
– Main Control Valve – Disassemble – Manifold Valve
– Main Control Valve – Disassemble – Proportional Valve
– Main Control Valve – Disassemble – Right Travel, Left Travel,
– Main Control Valve – Remove and Install
– Main Hydraulic Pump – Assemble
– Main Hydraulic Pump – Disassemble
– Main Hydraulic Pump – Remove and Install
– Manual Ball Valve (Counterweight Circuit) – Remove and
– Oil Filter (Hydraulic, Return) – Remove and Install
– Operator Console – Remove and Install
– Pedal Control (Travel) – Remove and Install
– Piston Motor (Hydraulic Fan) – Assemble
– Piston Motor (Hydraulic Fan) – Disassemble
– Piston Motor (Hydraulic Fan) – Remove and Install
– Pressure Reducing Valve – Assemble
– Pressure Reducing Valve – Disassemble
– Pressure Reducing Valve – Remove and Install
– Pressure Switch (Refrigerant Pressure Cutoff) – Remove and
– Pump (Hydraulic Oil Cooler and Fan Drive) – Assemble
– Pump (Hydraulic Oil Cooler and Fan Drive) – Disassemble
– Pump (Hydraulic Oil Cooler and Fan Drive) – Remove and
– Pump Drive Coupling – Remove and Install
– Recoil Spring – Assemble
– Recoil Spring – Disassemble
– Relief Valve (Pilot) – Remove and Install
– Seat – Remove and Install
– Seat Support – Remove and Install
– Seat Suspension – Remove and Install
– Solenoid Valve (Counterweight Circuit) – Assemble
– Solenoid Valve (Counterweight Circuit) – Disassemble
– Solenoid Valve (Counterweight Circuit) – Remove and Install
– Solenoid Valve (Hydraulic Lockout) – Remove and Install
– Solenoid Valve (Proportional Reducing) – Remove and Install
– Solenoid Valve (Swing Brake) – Assemble
– Solenoid Valve (Swing Brake) – Disassemble
– Solenoid Valve (Swing Brake) – Remove and Install
– Solenoid Valve (Two Speed Travel) – Remove and Install
– Sprocket – Remove and Install
– Stick – Remove and Install
– Stick Bearings and Seals – Remove and Install
– Stick Cylinder – Remove and Install
– Storage Box and Covers (Cab) – Remove and Install
– Swing Control Valve – Assemble
– Swing Control Valve – Disassemble
– Swing Control Valve – Remove and Install
– Swing Drive – Assemble
– Swing Drive – Disassemble
– Swing Drive – Remove and Install
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Remove
– Swing Motor – Assemble
– Swing Motor – Disassemble
– Swing Motor – Remove and Install
– Swing Pump – Assemble
– Swing Pump – Disassemble
– Swing Pump – Remove and Install
– Swivel – Assemble
– Swivel – Disassemble
– Swivel – Remove and Install
– System Pressure – Release
– Temperature Sensor (Ambient Air) – Remove and Install
– Temperature Sensor (Cab Air) – Remove and Install
– Temperature Sensor (Evaporator Coil) – Remove and Install
– Track – Separate and Connect
– Track Carrier Roller – Remove and Install
– Track Roller – Remove and Install
– Track Roller Frame – Remove and Install
– Travel Motor – Assemble
– Travel Motor – Disassemble
– Travel Motor – Remove and Install
– Upper Frame and Undercarriage Frame – Separate and
– Window Wiper Motor – Remove and Install
Disassembly and Assembly C15 and C18 Engines for Caterpillar Built Machines
– Air Compressor – Remove and Install – If Equipped
– Air Compressor Drive Gear – Remove and Install
– Alternator – Remove and Install
– Atmospheric Pressure Sensor – Remove and Install
– Bearing Clearance – Check
– Camshaft – Install
– Camshaft – Remove
– Camshaft Bearings – Install
– Camshaft Bearings – Remove
– Camshaft Gear – Remove and Install
– Camshaft Position Sensor – Remove and Install
– Connecting Rod Bearings – Install
– Connecting Rod Bearings – Remove
– Coolant Temperature Sensor – Remove and Install
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Install
– Crankshaft Front Seal – Remove
– Crankshaft Position Sensor – Remove and Install
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Cylinder Head – Install
– Cylinder Head – Remove
– Cylinder Liner – Remove
– Cylinder Liner – Remove
– Electric Starting Motor – Remove and Install
– Electronic Control Module – Remove and Install
– Electronic Unit Injector – Install
– Electronic Unit Injector – Remove
– Electronic Unit Injector Sleeve – Install
– Electronic Unit Injector Sleeve – Remove
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine Oil Filter Base – Assemble
– Engine Oil Filter Base – Disassemble
– Engine Oil Filter Base – Install
– Engine Oil Filter Base – Remove
– Engine Oil Pan – Remove and Install
– Engine Oil Pan – Remove and Install
– Engine Oil Pressure Sensor – Remove and Install
– Engine Oil Pump – Assemble
– Engine Oil Pump – Disassemble
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Engine Support (Front) – Remove and Install
– Exhaust Manifold – Remove and Install
– Flywheel – Install
– Flywheel – Remove
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install – Equipped with Rear
– Front Cover – Install
– Front Cover – Remove
– Fuel Filter Base – Install
– Fuel Filter Base – Remove
– Fuel Priming Pump – Remove and Install
– Fuel Temperature Sensor – Remove and Install
– Fuel Transfer Pump – Install
– Fuel Transfer Pump – Remove
– Gear Group (Front) – Install
– Gear Group (Front) – Remove
– Gear Group (Rear) – Install
– Gear Group (Rear) – Remove
– Housing (Front) – Install
– Housing (Front) – Remove
– Inlet Air Temperature Sensor – Remove and Install
– Inlet and Exhaust Valve Guides – Remove and Install
– Inlet and Exhaust Valve Seat Inserts – Remove and Install
– Inlet and Exhaust Valve Springs – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Piston Cooling Jets – Remove and Install
– Pistons and Connecting Rods – Assemble
– Pistons and Connecting Rods – Disassemble
– Pistons and Connecting Rods – Install
– Pistons and Connecting Rods – Remove
– Rocker Arm – Assemble
– Rocker Arm – Disassemble
– Rocker Arm and Shaft – Install
– Rocker Arm and Shaft – Remove
– Turbocharger – Assemble
– Turbocharger – Disassemble
– Turbocharger – Install
– Turbocharger – Remove
– Turbocharger Outlet Pressure Sensor – Remove and Install
– Valve Actuator (Variable) – Install
– Valve Actuator (Variable) – Remove
– Valve Mechanism Cover – Remove and Install
– Valve Mechanism Cover Base – Remove and Install
– Vibration Damper and Pulley – Remove and Install
– Water Pump – Assemble
– Water Pump – Assemble
– Water Pump – Disassemble
– Water Pump – Disassemble
– Water Pump – Install
– Water Pump – Remove
– Water Temperature Regulator Housing – Remove and Install
Schematic Caterpillar 374D Excavator Electrical System – Attachment
– Features
– Cover Page
– Information
– Component Table
– Connector Table
– Wire Description Table
– Resistor Specifications
– Related Electrical Service Manuals
– Standard Electrical
– Schematic
– Machine Views
– Cab Component Locations
– Chassis Component Locations
– Stick Component Locations
Schematic Caterpillar 374D Excavator Electrical System
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Main Control And Pilot
– Reverse Fan
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component locations
– Combined Function
– Main Control And Pilot
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Fine Filtration
– Main Control And Pilot
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Main Control And Pilot
– Universal Quick Coupler
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Main Control and Pilot
– Rear Attachment – Counterweight
Removal
Schematic Caterpillar 374D Excavator Hydraulic System – Attachment
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Attachment – One-Way Flow
– Main Control And Pilot
Schematic Caterpillar 374D Excavator Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Main Control And Pilot
Schematic Caterpillar Air Conditioning Electrical System
Specifications 374D Excavator Machine System
– Accumulator (Pilot)
– Air Conditioner Lines
– Auxiliary Hydraulic Lines – Coupler Lines
– Auxiliary Hydraulic Lines – Coupler Lines
– Auxiliary Hydraulic Lines – Coupler Lines for Reach Boom
– Auxiliary Hydraulic Lines – Quick Coupler
– Auxiliary Hydraulic Lines – R2.84 VB Stick Coupler Lines
– Auxiliary Hydraulic Lines – R2.84 VB Stick Coupler Lines
– Auxiliary Hydraulic Lines – R3.6 VB Stick Coupler Lines
– Auxiliary Hydraulic Lines – R4.15 VB Stick Coupler Lines
– Boom – 7.00 m (23.0 ft)
– Boom – 7.80 m (25.6 ft)
– Boom – 7.80 m (25.6 ft)
– Boom Cylinder
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Bucket Adjuster
– Bucket Adjuster – VB Family
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Linkage – VB Family
– Bucket Linkage – VB Family
– Bucket Linkage – WB Family
– Bucket Linkage – WB-Family
– Bucket Sidecutter
– Bucket Sidecutter
– Bucket Sidecutter
– Cab
– Cab
– Cab – Internal
– Cab – Visor Group
– Cab Lighting – Boom HID Light
– Cab Lighting – Cab Guard HID Light
– Cab Lighting – Cab HID Light
– Check Valve
– Check Valve (Hydraulic Oil Cooler Bypass)
– Check Valve – Bypass
– Control Valve (Counterweight)
– Counterweight
– Counterweight Cylinder
– Counterweight Cylinder Mounting – Counterweight Removal
– Counterweight Lifting Chain
– Counterweight Lines
– Cylinder Guard
– Drain Line (Muffler)
– Ether Starting Aid
– Fan Drive Pump
– Fasteners
– Final Drive
– Front Idler
– Front Lines
– Front Lines
– Front Lines
– Front Lines – Common
– Front Lines – Universal Quick Coupler
– Fuel Lines
– Fuel Tank
– Gear Pump – Pilot
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Heater and Air Conditioner Mounting
– Hydraulic Fan Drive Lines
– Hydraulic Fan Drive Lines – Reverse Fan
– Hydraulic Filter and Lines Gp
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Straight Travel)
– Hydraulic Pedal Control (Straight Travel)
– Hydraulic Pedal Control (Travel)
– Hydraulic Tank and Filter
– Hydraulic Tank Mounting
– Joystick Control
– Liquid Level Sensor (Water Separator)
– Load Control Valve (Boom)
– Main Control Valve
– Main Hydraulic Pump
– Manifold and Reducing Valve (Load Sensing)
– Oil Filter (Hydraulic)
– Oil Filter (Hydraulic)
– Oil Filter (Return)
– Operator Console
– Operator Monitor
– Pilot Lines
– Pilot Lines
– Pilot Valve (Boom Drift Reduction) – Regeneration
– Pilot Valve (Stick Drift Reduction)
– Pump Control (Swing)
– Pump Coupling
– Pump Head (Main)
– Pump Lines (Main)
– Recoil Spring
– Refrigerant Compressor
– Refrigerant Compressor
– Relief Valve (Differential)
– Relief Valve (Line)
– Relief Valve (Main)
– Relief Valve (One-Way Hydraulic Flow)
– Return and Oil Filter Lines
– Shuttle Valve (Pilot Lines)
– Solenoid Valve (Counterweight Control)
– Solenoid Valve (Proportional Reducing)
– Solenoid Valve – Load Sensing
– Sprocket
– Stick – 2.57 m (8.432 ft)
– Stick – 2.57 m (8.432 ft)
– Stick – 2.84 m (9.3 ft)
– Stick – 2.995 m (9.8261 ft)
– Stick – 3.60 m (11.8 ft)
– Stick – 3.60 m (11.8 ft)
– Stick – 4.15 m (13.6 ft)
– Stick – 4.67 m (15.3 ft)
– Stick Cylinder
– Stick Cylinder Lines
– Stick Cylinder Lines
– Swing Cushion Valve
– Swing Drive
– Swing Gear and Bearing
– Swing Motor – Left
– Swing Motor – Right
– Swing Motor Lines
– Swing Pump
– Track
– Track Adjuster
– Track Carrier Roller
– Track Roller (Double Flange)
– Track Roller (Single Flange)
– Track Roller Mounting
– Travel Counterbalance Valve
– Travel Motor
– Travel Motor Lines
– Upper Frame
– Upper Frame
Systems Operation & Testing and Adjusting C15 and C18 Engines for Caterpillar Built Machines
– Aftercooler – Test
– Air in Fuel – Test
– Air Inlet and Exhaust System
– Air Inlet and Exhaust System – Inspect
– Basic Engine
– Battery – Test
– Charging System – Test
– Compression Brake – If Equipped
– Compression Brake Lash – Adjust – If Equipped
– Connecting Rod Bearings – Inspect
– Cooling System
– Cooling System – Check – Overheating
– Cooling System – Inspect
– Cooling System – Test
– Cylinder Block – Inspect
– Cylinder Liner Projection – Inspect
– Electric Starting System – Test
– Electrical System
– Electronic Control System Components
– Electronic Unit Injector – Adjust
– Electronic Unit Injector – Test
– Engine Crankcase Pressure (Blowby) – Test
– Engine Oil Pressure – Test
– Engine Oil Pump – Inspect
– Engine Valve Lash – Inspect/Adjust
– Excessive Bearing Wear – Inspect
– Excessive Engine Oil Consumption – Inspect
– Exhaust Temperature – Test
– Finding Top Center Position for No. 1 Piston
– Flywheel – Inspect
– Flywheel Housing – Inspect
– Fuel Quality – Test
– Fuel System
– Fuel System – Inspect
– Fuel System – Prime
– Fuel System Pressure – Test
– Gear Group (Front) – Time
– General Information
– Increased Engine Oil Temperature – Inspect
– Inlet Manifold Pressure – Test
– Lubrication System
– Main Bearings – Inspect
– Pinion Clearance – Adjust
– Piston Ring Groove – Inspect
– Turbocharger – Inspect
– Vibration Damper – Check
– Water Pump – Inspect
– Water Temperature Regulator – Test
Systems Operation 374D Excavator Hydraulic System
– Accumulator (Pilot)
– Boom Drift Reduction Valve
– Boom Hydraulic System
– Bucket Hydraulic System
– Bypass Valve (Return)
– Check Valve (Return Makeup)
– Combined Function Hydraulic System
– Control Valve (Boom Lowering)
– Control Valve (Stick Lowering)
– Counterweight (Removal and Installation Hydraulic System)
– Cylinders (Boom, Stick and Bucket)
– Displacement Change Valve
– Fan Pump (Hydraulic and Radiator Cooling)
– Final Drive
– Gear Pump (Pilot)
– General Information
– Graphic Color Codes
– Hydraulic Filter (Pilot)
– Hydraulic Oil Cooler
– Hydraulic Pedal Control – Straight Travel
– Hydraulic Tank and Filter
– Joystick Control
– Load Check Valve and Flow Compensator Valve
– Load Signal Reduction Manifold – Load Signal Diverter
– Main Control Valve
– Main Control Valve – Limiting Circuit Pressure
– Main Control Valve – Load Signal Regulation
– Main Hydraulic Pump
– Main Hydraulic System
– Medium Pressure Hydraulic System
– Oil Filter (Return) – Case Drain Filters
– Oil Makeup (Swing System)
– Oil Makeup (Travel System)
– One-Way Flow Hydraulic System
– Pilot Hydraulic System
– Pilot Valve (Swing Parking Brake)
– Proportional Priority Pressure Compensation System
– Pump Control (Main Hydraulic)
– Pump Control (Swing)
– Relief Valve (Cushion Crossover) – Anti-Reaction Valve
– Relief Valve (Differential Pressure)
– Relief Valve (Line)
– Relief Valve (Pilot)
– Relief Valve (Signal)
– Relief Valve (Swing)
– Return Hydraulic System
– Signal Duplication Valve
– Solenoid Valve (Hydraulic Lockout)
– Solenoid Valve (Proportional Reducing) – Power Shift System
– Stick Drift Reduction Valve
– Stick Hydraulic System
– Swing Drive
– Swing Hydraulic System
– Swing Motor
– Swing Pump
– Swivel
– Travel Counterbalance Valve
– Travel Hydraulic System
– Travel Motor
Systems Operation D Series Excavator Monitoring System
– Input Components
– Performance Mode
– Service Mode
– Maintenance Mode
– Password Change Mode
– Diagnostic Mode
– ECM Information Mode
– Status Mode
– Calibration Mode
– Device Test Mode
– Override Mode
– Output Components
– Configuration Mode
– Tool Program Mode
– System Schematic
– Data Link
– Prestart Monitoring Function
– Warning Operation
– Menu Outline
– Password Entry
– Setting Mode
– Maintenance Information Mode
– General Information
Testing and Adjusting 374D Excavator Hydraulic System
– Accumulator (Pilot) – Test and Charge
– Auxiliary Valve Spool – Calibrate
– Cylinder Drift – Check – Empty Bucket
– Cylinder Drift – Check – Loaded Bucket
– Cylinder Speed – Check
– Engine Performance – Test – Engine Speed
– Fan Motor Speed (Hydraulic and Radiator Cooling) – Test and
– Gear Pump (Pilot) – Test
– General Testing and Adjusting Information
– Machine Drift on a Slope – Check
– Main Hydraulic Pump Air – Purge
– Main Pump (Destroke Pressure) – Test and Adjust
– Main Pump (Flow) – Test – Constant Horsepower Flow Control
– Margin Pressure – Test and Adjust
– Operational Checks
– Overload Warning – Set – If Equipped
– Process for Setting Up the Work Tool
– Pump Control (Output Flow) – Adjust
– Relief Valve (Counterweight Cylinder) – Test and Adjust
– Relief Valve (Crossover) – Test and Adjust
– Relief Valve (Differential Pressure) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Line) – Test and Adjust – Boom Lowering Control
– Relief Valve (Line, Auxiliary) – Test and Adjust
– Relief Valve (Load Sensing Signal) – Test and Adjust –
– Relief Valve (Pilot) – Test and Adjust
– Relief Valve (Signal) – Test and Adjust
– Relief Valve (Swing) – Test and Adjust
– Specifications
– Swing Bearing Movement – Measure
– Swing Motor – Test – Measurement of Case Drain Oil
– Swing Pump – Test – Constant Horsepower Flow Control
– Swing Pump – Test – Positive Flow Control
– Swing Speed and Overswing on Level Ground – Check
– Swing Speed and Swing Drift on a Slope – Check
– System Pressure – Release
– Travel Motor – Test – Measurement of Case Drain Oil
– Travel on Level Ground – Test
– Travel on Level Ground – Test – Optional Test
– Visual Inspection
– Work Tool – Select
– Work Tool Parameter – Program
Troubleshooting C15 and C18 Engines for Caterpillar Built Machines
– 5 Volt Engine Pressure Sensor Supply Circuit – Test
– Alternator – Noisy Operation
– Brake Oil Temperature Sensor Circuit – Test
– Can Not Reach Top Engine RPM
– Cat Data Link Circuit – Test
– CID 0001 FMI 05 Cylinder #1 Injector open circuit
– CID 0001 FMI 06 Cylinder #1 Injector short
– CID 0002 FMI 05 Cylinder #2 Injector open circuit
– CID 0002 FMI 06 Cylinder #2 Injector short
– CID 0003 FMI 05 Cylinder #3 Injector open circuit
– CID 0003 FMI 06 Cylinder #3 Injector short
– CID 0004 FMI 05 Cylinder #4 Injector open circuit
– CID 0004 FMI 06 Cylinder #4 Injector short
– CID 0005 FMI 05 Cylinder #5 Injector open circuit
– CID 0005 FMI 06 Cylinder #5 Injector short
– CID 0006 FMI 05 Cylinder #6 Injector open circuit
– CID 0006 FMI 06 Cylinder #6 Injector short
– CID 0041 FMI 03 8 Volt DC Supply short to +batt
– CID 0041 FMI 04 8 Volt DC Supply short to ground
– CID 0091 FMI 08 Throttle Position signal abnormal
– CID 0094 FMI 03 Fuel Pressure open/short to +batt
– CID 0094 FMI 04 Fuel Pressure short to ground
– CID 0096 FMI 03 Fuel Level Sensor open/short to +batt
– CID 0096 FMI 04 Fuel Level Sensor short to ground
– CID 0100 FMI 03 Engine Oil Pressure open/short to +batt
– CID 0100 FMI 04 Engine Oil Pressure short to ground
– CID 0102 FMI 03 Boost Pressure Sensor short to +batt
– CID 0102 FMI 04 Boost Pressure Sensor short to ground
– CID 0110 FMI 03 Engine Coolant Temperature open/short to
– CID 0110 FMI 04 Engine Coolant Temperature short to ground
– CID 0168 FMI 00 System Voltage High
– CID 0168 FMI 01 System Voltage Low
– CID 0168 FMI 02 System Voltage intermittent/erratic
– CID 0172 FMI 03 Intake Manifold Air Temp open/short to
– CID 0172 FMI 04 Intake Manifold Air Temp short to ground
– CID 0174 FMI 03 Fuel Temperature open/short to +batt
– CID 0174 FMI 04 Fuel Temperature short to ground
– CID 0190 FMI 08 Engine Speed signal abnormal
– CID 0253 FMI 11 Personality Module mechanical failure
– CID 0261 FMI 13 Engine Timing Calibration required
– CID 0262 FMI 03 5 Volt Sensor DC Power Supply short to
– CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to
– CID 0267 FMI 02 Incorrect Engine Shutdown Switch inputs
– CID 0268 FMI 02 Check Programmable Parameters
– CID 0274 FMI 03 Atmospheric Pressure open/short to +batt
– CID 0274 FMI 04 Atmospheric Pressure short to ground
– CID 0275 FMI 03 Right Turbo Inlet Pressure open/short to
– CID 0275 FMI 04 Right Turbo Inlet Pressure short to ground
– CID 0342 FMI 08 Secondary Engine Speed signal abnormal
– CID 0457 FMI 08 Brake Oil Temperature Sensor signal
– CID 0826 FMI 08 Torque Converter Oil Temperature signal
– CID 1785 FMI 03 Intake Manifold Pressure Sensor voltage high
– CID 1785 FMI 04 Intake Manifold Pressure Sensor voltage low
– CID 1834 FMI 02 Ignition Key Switch loss of signal
– Coolant Flow Switch Circuit – Test
– Coolant in Engine Oil
– Coolant Level Sensor Circuit – Test
– Coolant Temperature Is Too High
– Diagnostic Codes
– Digital Sensor Supply Circuit – Test
– E033 Loss of Coolant Flow Derate
– E034 Loss of Coolant Flow Shutdown
– E035 Loss of Coolant Flow Warning
– E057 Low Engine Coolant Level Derate
– E058 Low Engine Coolant Level Shutdown
– E059 Low Engine Coolant Level Warning
– E172 High Air Filter Restriction
– E265 User Defined Shutdown
– E360 Low Engine Oil Pressure
– E361 High Engine Coolant Temperature
– E362 Engine Overspeed
– E363 High Fuel Supply Temperature
– E539 High Intake Manifold Air Temperature
– ECM Will Not Accept Factory Passwords
– ECM Will Not Communicate with Other Systems or Display
– Electrical Connectors – Inspect
– Electrical Power Supply Circuit – Test
– Electronic Service Tool Will Not Communicate with ECM
– Electronic Service Tools
– Engine Cranks but Will Not Start
– Engine Has Early Wear
– Engine Misfires, Runs Rough or Is Unstable
– Engine Oil in Cooling System
– Engine Oil Temperature Is Too High
– Engine Pressure Sensor Open or Short Circuit – Test
– Engine Shutdown Switch Circuit – Test
– Engine Speed/Timing Sensor – Calibrate
– Engine Speed/Timing Sensor Circuit – Test
– Engine Stalls at Low RPM
– Engine Temperature Sensor Open or Short Circuit – Test
– Engine Vibration
– Engine Will Not Crank
– Engine Wiring Information
– Event Codes
– Excessive Black Smoke
– Excessive Engine Oil Consumption
– Excessive Fuel Consumption
– Excessive Valve Lash
– Excessive White Smoke
– Exhaust Temperature Is Too High
– Factory Passwords
– Factory Passwords Worksheet
– Flash Programming
– Fuel Dilution of Engine Oil
– Fuel in Cooling System
– Fuel Level Sensor Circuit – Test
– Injector Solenoid Circuit – Test
– Injector Trim File
– Intermittent Engine Shutdown
– Intermittent Low Power or Power Cutout
– Low Engine Oil Pressure
– Low Power/Poor or No Response to Throttle
– Mechanical Noise (Knock) in Engine
– Noise Coming from Cylinder
– Poor Acceleration or Response
– Programming Parameters
– Replacing the ECM
– Self-Diagnostics
– Sensors and Electrical Connectors
– System Configuration Parameters
– System Overview
– Test ECM Mode
– Throttle Position Sensor Circuit – Test
– Throttle Switch Circuit – Test
– Torque Converter Oil Temperature Sensor Circuit – Test
– Valve Rotator or Spring Lock Is Free
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