Service manual Caterpillar 950GC Wheel Loader with C7.1 Engine | M5T00001-UP

950 GC Wheel Loader 5 Gauge Cluster
– Alarm – Test
– CAN Data Link – Test
– Cat Data Link – Test
– Charging System – Test
– Condition Switch (Two Wire) – Test
– Connector Contact Description
– Connector Locations
– Data Link
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– Display Module
– Electrical Connector – Inspect
– Electrical Power Supply – Test
– Emerging Symptom Information
– Event Codes
– General Information
– General Information
– Input Components
– Modes of Operation
– Modes of Operation
– Module – Flash Program
– Module – Replace
– Monitoring System
– Operator Control Switch (Switch to Battery) – Test
– Output Components
– Self Test
– Sensor Signal (Analog, Passive) – Test
– Service Tools
– Symptom Troubleshooting
– System Schematic
– Warning Operation
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
950 GC Wheel Loader Braking and Hydraulic Fan System
– Brake Accumulator
– Brake Accumulator – Test and Charge
– Brake Control Valve (Parking)
– Brake Control Valve (Service)
– Brake System Air – Purge
– Control Manifold (Brake, Hydraulic Fan) – Accumulator
– Control Manifold (Charging Valve for the Brake
– Gear Motor (Hydraulic Fan)
– Gear Pump (Brake, Hydraulic Fan)
– General Information (Brake, Hydraulic Fan System)
– Hydraulic Fan Speed – Test and Adjust
– Hydraulic Fan System
– Hydraulic Oil Contamination – Test
– Limit Switch (Stop Light) – Adjust
– Machine Preparation for Troubleshooting
– Monitoring System (Brake Functions)
– Parking Brake
– Parking Brake – Manual Release
– Parking Brake – Test
– Parking Brake Actuator – Adjust
– Pressure Tap Locations
– Service Brake System Pressure – Test
– Service Brake Wear (Existing Brake Disc) – Check
– Service Brakes
– Service Brakes – Test
– System Pressure – Release
– Visual Inspection
950 GC Wheel Loader Hydraulic System
– Determining Diagnostic Trouble Codes
– Electrical Connector – Inspect
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– Emerging Symptom Information
– Glossary of Electrical Terms
– Hydraulic Oil Contamination – Test
– Hydraulic System Troubleshooting
– Implement Cycle Time – Check
– Lift and Tilt Cylinder Drift – Check
– Machine Preparation for Troubleshooting
– Pilot Oil Accumulator (Dead Engine, Lift Arm Lower) – Test
– Piston Pump (Implement) Margin Pressure – Test and Adjust
– Pressure Limiter (Auxiliary Valve) – Check and Adjust
– Pressure Tap Locations
– Relief Valve (Load Sensing Signal) – Test and Adjust
– Ride Control Accumulator – Test and Charge
– System Pressure – Release
– Visual Inspection
950 GC Wheel Loader Power Train Electrohydraulic Control
– Axle Housing and Bearing Preload – Adjust
– Backup Alarm Always Off
– Backup Alarm Always On
– Charging System – Test
– Condition Switch (Two Wire) – Test
– Connector Locations
– Data Link – Test
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– Differential and Final Drive Troubleshooting
– Differential Backlash and Bearings – Adjust
– Electrical Connector – Inspect
– Electrical Power Supply – Test
– Electronic Control Module (ECM) – Configure
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– Emerging Symptom Information
– Event Codes
– Forward High Speed Lockout – Program
– General Information
– Glossary of Electrical Terms
– Limited Slip Differential Disc End Play – Check
– Machine Preparation for Troubleshooting
– Operator Control Switch (Switch to Ground) – Test
– Output Transfer Gears – Adjust
– Relay – Test
– Reverse High Speed Lockout – Program
– Ride Control Configuration – Program
– Secondary Steering – Program
– Sensor Signal (Analog, Active) – Test
– Sensor Signal (Analog, Passive) – Test
– Sensor Signal (PWM) – Test
– Sensor Supply – Test
– Service Tools
– Solenoid Valve – Test
– Speed Sensor – Adjust
– Speed Sensor – Test
– Switch Circuits – Test
– Symptom Troubleshooting
– System Schematic – Power Train
– Torque Converter Stall – Test
– Torque Converter Troubleshooting
– Transmission Pressures – Test and Adjust
– Transmission Troubleshooting
– Visual Inspection
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
950 GC Wheel Loader Steering System
– Articulated Hitch – Adjust
– General Information (Steering) – HMU Steering
– Hydraulic Oil Contamination – Test
– Machine Preparation for Troubleshooting
– Metering Pump (HMU)
– Monitoring System (Steering Functions)
– Piston Pump (Steering)
– Piston Pump (Steering) High Pressure Stall – Test and Adjust
– Piston Pump (Steering) Low Pressure Standby – Test and
– Piston Pump (Steering) Margin Pressure – Test and Adjust
– Pressure Tap Locations
– Secondary Steering Pump and Electric Motor
– Secondary Steering System (HMU Steering)
– Secondary Steering Valve
– Steering System Troubleshooting
– Steering Time – Check
– System Pressure – Release
– Visual Inspection
Air Conditioning and Heating R134a for All Cat Machines
– General Information
– Refrigerant Orifice Tube System
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Condenser
– Refrigerant Condenser
– Refrigerant Receiver-Dryer
– Refrigerant Receiver-Dryer
– Refrigerant Expansion Valve
– In-line Refrigerant Dryer
– Identifying the Refrigerant
– In-line Refrigerant Dryer
– Refrigerant Orifice Tube Assembly
– Refrigerant Orifice Tube Assembly
– Evaporator Coil
– Refrigerant Accumulator
– Refrigerant Accumulator
– Refrigerant Accumulator
– Refrigerant Compressor Protection System
– Temperature Control
– Temperature Control
– Identifying the Refrigerant
– Pressure Switch (Refrigerant)
– Pressure Switch (Refrigerant)
– Cab Pressurization and Filtration System
– Cab Pressurization and Filtration System
– Cab Pressurization and Filtration System
– Condensate Drainage System
– Condensate Drainage System
– Service Intervals
– Service Intervals
– Glossary of Terms
– Identifying the Air Conditioning System
– General Troubleshooting Information
– General Troubleshooting Information
– Machine Preparation for Testing and Adjusting
– Machine Preparation for Testing and Adjusting
– Air Conditioning Performance – Test
– Refrigerant Leakage – Test
– Manifold Gauge Set (Refrigerant) – Install
– Manifold Gauge Set (Refrigerant) – Install
– Refrigerant Recovery
– Refrigerant Recovery
– Identifying the Air Conditioning System
– Refrigerant System – Flush
– Refrigerant Oil – Test
– Refrigerant Compressor – Test
– Refrigerant Compressor – Test
– Refrigerant Compressor – Test
– Refrigerant System – Evacuate
– Refrigerant System – Evacuate
– Refrigerant System – Charge
– Refrigerant System – Charge
– Manifold Gauge Set (Refrigerant) – Remove
– Identifying the Heating System
– Manifold Gauge Set (Refrigerant) – Remove
– Compressor Protection System – Test
– Compressor Protection System – Test
– Electronic Heat Control – Test
– Electronic Heat Control – Test
– Heater Performance – Test
– Heating and Air Conditioning Service Publications
– General Information
– General Information
– Machine Preparation for Disassembly and Assembly
– Refrigerant Expansion Valve System
– 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 Expansion Valve System
– Refrigerant Orifice Tube System
– General Information
Cat Autolube System for Medium Wheel Loaders
– Automatic Lubrication System – Charge
– Automatic Lubrication System – Flush
– Automatic Lubrication System – Test
– Automatic Lubrication System Troubleshooting
– General Information
– Lubrication Distribution Valve
– Lubrication Pump
– System Pressure – Release
Cat Payload Kit For Medium Wheel Loaders
– Editing Truck and Material Lists
– General Information (Calibration)
– Menu Navigation
– Normal Weighing Operation
– Reweigh Operation
– Scale System
– Service Menu
– Simple Calibration
– Software – Install
– Totals Menu
– Troubleshooting
– Zero Operation
Disassembly and Assembly 950GC Wheel Loader Engine Supplement
– Aftercooler Core – Remove and Install
– Air Cleaner – Remove and Install
– Air Inlet Elbow – Remove and Install
– Alternator – Remove and Install
– Batteries – Remove and Install
– Clean Emissions Module – Remove and Install
– Cooling System Package (Radiator, Fan Group, Aftercooler,
– Cooling System Package (Radiator, Fan, Aftercooler, Oil
– Cooling System Package (Radiator, Fan, Aftercooler, Oil
– Cooling System Package (Radiator, Fan, Aftercooler, Oil
– Cooling System Package (Radiator, Fan, Aftercooler, Oil
– Crankshaft Front Seal – Remove and Install
– DEF Injector and Mounting – Remove and Install
– Diesel Exhaust Fluid Filter – Remove and Install
– Diesel Exhaust Fluid Module – Assemble
– Diesel Exhaust Fluid Module – Disassemble
– Diesel Exhaust Fluid Module – Remove and Install
– Electric Starting Motor – Remove and Install
– Electronic Control Module – Remove and Install
– Engine – Remove and Install
– Engine Enclosure – Remove and Install
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Exhaust Back Pressure Valve – Remove and Install
– Exhaust Manifold – Remove and Install
– Fan Group – Remove and Install
– Flexible Exhaust Pipe – Remove and Install
– Fuel Filter (Secondary) and Fuel Filter Base – Remove and
– Fuel Filter and Water Separator Base – Remove and Install
– Fumes Disposal Filter – Remove and Install
– Hood – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Nitrogen Oxide Sensor – Remove and Install – Nitrogen Oxide
– Pressure Sensor (Mass Air Flow) – Remove and Install
– Radiator – Remove and Install
– Radiator Top Tank – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Soot Sensor – Remove and Install
– Temperature Sensor (DPF Inlet, Flame Detect) – Remove and
– Transmission Oil Cooler – Remove and Install
– Turbocharger – Remove and Install
– Valve Cover – Remove and Install
– Water Pump – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 950GC Wheel Loader Machine Systems
– Blower Motor (Air Conditioner and Heater) – Remove and
– Brake Accumulator – Remove and Install
– Brake Control Valve (Parking) – Assemble
– Brake Control Valve (Parking) – Disassemble
– Brake Control Valve (Parking) – Remove and Install
– Brake Control Valve (Service) – Assemble
– Brake Control Valve (Service) – Disassemble
– Brake Control Valve (Service) – Remove and Install
– Bucket – Install
– Bucket – Remove
– Cab – Remove and Install
– Control Manifold (Brake Charge) (Hydraulic Fan Control) –
– Control Manifold (Brake Charge) (Hydraulic Fan Control) –
– Control Manifold (Brake Charge) (Hydraulic Fan Control) –
– Coupler Cylinder – Remove and Install
– Evaporator Coil and Heater Coil – Remove and Install
– Fuel Tank – Remove and Install
– Gear Motor (Hydraulic Fan) – Assemble
– Gear Motor (Hydraulic Fan) – Disassemble
– Gear Pump (Brake, Hydraulic Fan) – Assemble
– Gear Pump (Brake, Hydraulic Fan) – Disassemble
– Gear Pump (Brake, Hydraulic Fan) – Install
– Gear Pump (Brake, Hydraulic Fan) – Remove
– Gear Pump (Secondary Steering) – Assemble
– Gear Pump (Secondary Steering) – Disassemble
– Hydraulic Tank – Remove and Install
– Hydraulic Tank Oil – Retain
– Lift Arms – Remove and Install
– Lift Cylinder – Assemble
– Lift Cylinder – Disassemble
– Lift Cylinder – Remove and Install
– Lift Position Sensor and Mounting (Lift Kickout Control) –
– Loader Frame from Rear Frame – Separate
– Loader Frame to Rear Frame – Connect
– Main Control Valve – Assemble
– Main Control Valve – Disassemble
– Main Control Valve and Mounting Plate – Remove and Install
– Metering Pump (HMU) – Remove and Install
– Pilot Operated Hydraulic Control (Joystick) – Assemble
– Pilot Operated Hydraulic Control (Joystick) – Disassemble
– Pilot Operated Hydraulic Control (Joystick) – Remove and
– Piston Pump (Implement) (Pilot) – Assemble
– Piston Pump (Implement) (Pilot) – Disassemble
– Piston Pump (Implement) (Pilot) – Remove and Install
– Piston Pump (Steering) – Assemble
– Piston Pump (Steering) – Disassemble
– Piston Pump (Steering) – Remove and Install
– Quick Coupler – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Ride Control Accumulator – Remove and Install
– Seat – Remove and Install
– Secondary Steering Pump and Electric Motor – Remove and
– Secondary Steering Valve – Assemble
– Secondary Steering Valve – Disassemble
– Secondary Steering Valve – Remove and Install
– Steering Cylinder – Assemble
– Steering Cylinder – Disassemble
– Steering Cylinder – Remove and Install
– Steering Wheel (Command Control Steering) – Remove and
– Steering Wheel (HMU Steering) – Remove and Install
– Tilt Cylinder – Remove and Install
– Tilt Lever – Remove and Install
– Tilt Link – Remove and Install
– Tilt Position Sensor and Mounting (Worktool Positioner
– Window Wiper and Wiper Motor (Front) – Remove and Install
– Window Wiper and Wiper Motor (Rear) – Remove and Install
Disassembly and Assembly 950GC Wheel Loader Power Train
– Axle Housing – Assemble
– Axle Housing – Disassemble
– Differential – Assemble
– Differential – Disassemble
– Differential and Bevel Gear – Remove and Install
– Differential Pinion – Assemble
– Differential Pinion – Disassemble
– Drive Shaft (Center) – Remove and Install
– Drive Shaft (Front) – Remove and Install
– Drive Shaft (Rear) – Remove and Install
– Duo-Cone Conventional Seals – Install
– Fixed Axle (Front) – Remove and Install
– Limited Slip Differential – Assemble
– Limited Slip Differential – Disassemble
– Oscillating Axle (Rear) – Remove and Install
– Parking Brake – Remove and Install
– Parking Brake Actuator – Remove and Install
– Service Brakes – Remove and Install
– Steering Frame Lock – Separate and Connect
– System Pressure – Release
– Tire and Rim (Front) – Remove and Install
– Tire and Rim (Rear) – Remove and Install
– Torque Converter, Transmission and Output Transfer Gears –
– Transmission – Assemble
– Transmission – Disassemble
– Transmission and Torque Converter – Connect
– Transmission and Torque Converter – Separate
– Transmission Oil Pump – Install
– Transmission Oil Pump – Remove
– Trunnion Support (Oscillating Axle, Front) – Remove and
– Trunnion Support (Oscillating Axle, Rear) – Remove and Install
Disassembly and Assembly C7.1 Engines for Caterpillar Built Machines
– Accessory Drive – Remove and Install – Accessory Drive SAE
– Accessory Drive – Remove and Install – Accessory Drive SAE
– Air Compressor – Remove and Install – Single Cylinder
– Air Compressor – Remove and Install – Twin Cylinder
– Alternator – Install
– Alternator – Remove
– Alternator Belt – Remove and Install
– Bearing Clearance – Check
– Belt Tensioner – Remove and Install
– Boost Pressure Sensor – Remove and Install
– Camshaft – Remove and Install
– Camshaft Bearings – Remove and Install
– Camshaft Gear – Remove and Install
– Camshaft Position Sensor – Remove and Install
– Clean Emissions Module – Remove and Install – Enclosed Clean
– Clean Emissions Module – Remove and Install – Open Type
– Connecting Rod Bearings – Install – Connecting rods in position
– Connecting Rod Bearings – Remove – Connecting rods in
– Coolant Tank – Remove and Install – DEF Injector Coolant
– Coolant Tank – Remove and Install – DEF Injector Coolant
– Coolant Temperature Sensor – Remove and Install
– Crankcase Breather – Install
– Crankcase Breather – Remove
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Remove and Install
– Crankshaft Front Seal – Remove and Install – Crankshaft Front
– Crankshaft Gear – Remove and Install
– Crankshaft Main Bearings – Remove and Install – Crankshaft
– Crankshaft Position Sensor – Remove and Install
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Crankshaft Timing Ring – Remove and Install
– Cylinder Head – Install
– Cylinder Head – Remove
– DEF Injector and Mounting – Remove and Install
– Diesel Exhaust Fluid Lines – Remove and Install
– Diesel Exhaust Fluid Module – Assemble
– Diesel Exhaust Fluid Module – Disassemble
– Diesel Exhaust Fluid Pump – Remove and Install
– Diesel Exhaust Fluid Tank – Remove and Install
– ECM Mounting Bracket – Remove and Install
– Electric Starting Motor – Remove and Install
– Electronic Control Module – Remove and Install – Electronic
– Electronic Unit Injector – Install
– Electronic Unit Injector – Remove
– Engine Oil Cooler – Install – Engine Oil Cooler with a High
– Engine Oil Cooler – Install – Engine Oil Cooler with a Low
– Engine Oil Cooler – Remove – Engine Oil Cooler with a High
– Engine Oil Cooler – Remove – Engine Oil Cooler with a Low
– Engine Oil Filter Base – Remove and Install
– Engine Oil Filter Base – Remove and Install – Engine Oil Filter
– Engine Oil Pan – Install – Aluminum Oil Pan
– Engine Oil Pan – Remove – Aluminum Oil Pan
– Engine Oil Pan Plate – Remove and Install – Aluminum Oil Pan
– Engine Oil Pressure Sensor – Remove and Install
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Exhaust Back Pressure Valve – Remove and Install
– Exhaust Cooler (NRS) – Remove and Install
– Exhaust Gas Valve (NRS) – Remove and Install
– Exhaust Manifold – Remove and Install
– Exhaust Manifold and Turbocharger – Install
– Exhaust Manifold and Turbocharger – Remove
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Flexible Exhaust Pipe – Remove and Install
– Flow Control Valve – Remove and Install
– Flywheel – Install
– Flywheel – Install – Equipped with Rear Power Take-Off
– Flywheel – Remove
– Flywheel – Remove – Equipped with Rear Power Take-Off
– Flywheel Housing – Remove and Install – Flywheel Housing that is
– Flywheel Housing – Remove and Install – Standard Housing
– Flywheel Housing – Remove and Install – Type A and Type B
– Front Cover – Remove and Install
– Front Cover – Remove and Install – Heavy-Duty Front Cover
– Fuel Filter Base – Remove and Install – Single Secondary Fuel
– Fuel Filter Base – Remove and Install – Twin Secondary Fuel
– Fuel Injection Lines – Install
– Fuel Injection Lines – Remove
– Fuel Injection Pump – Install
– Fuel Injection Pump – Remove
– Fuel Injection Pump Gear – Install
– Fuel Injection Pump Gear – Remove
– Fuel Manifold (Rail) – Remove and Install
– Fuel Pressure Sensor – Remove and Install
– Fuel Priming Pump – Remove and Install – Electric Fuel Lift
– Fuel Temperature Sensor – Remove and Install
– Gear Group (Front) – Remove and Install
– Gear Group (Front) – Remove and Install – Heavy-Duty Gear
– Glow Plugs – Remove and Install
– Housing (Front) – Install
– Housing (Front) – Install – Heavy-Duty Housing (Front)
– Housing (Front) – Remove
– Housing (Front) – Remove – Heavy-Duty Housing (Front)
– Idler Gear – Install
– Idler Gear – Remove
– Idler Pulley – Remove and Install – Flat Idler Pulley
– Idler Pulley – Remove and Install – Grooved Idler Pulley
– Inlet Air Control – Install – NRS Inlet Air Mixer
– Inlet Air Control – Remove – NRS Inlet Air Mixer
– Inlet and Exhaust Valve Springs – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Inlet Manifold Temperature Sensor – Remove and Install
– Lifter Group – Remove and Install – Hydraulic Lifter Group
– Manifold (DEF Heater) – Remove and Install
– Nitrogen Oxide Sensor – Remove and Install – Nitrogen Oxide
– Nitrogen Oxide Sensor – Remove and Install – Original
– 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
– Pressure Sensor (Cooled Exhaust Gas) – Remove and Install –
– Rear Power Take-Off (RPTO) – Install
– Rear Power Take-Off (RPTO) – Remove
– Refrigerant Compressor – Remove and Install
– Relief Valve (Fuel) – Remove and Install
– Rocker Shaft – Assemble
– Rocker Shaft – Disassemble
– Rocker Shaft and Pushrod – Install
– Rocker Shaft and Pushrod – Remove
– Solenoid Valve (DEF Heater Coolant) – Remove and Install
– Soot Antenna – Remove and Install
– Support and Mounting (CEM) – Remove and Install
– Temperature Sensor (Cooled Exhaust Gas) – Remove and
– Temperature Sensor (DPF) – Remove and Install – Inlet and
– Temperature Sensor – Remove and Install – Combined Selective
– Turbocharger – Install – First Stage Turbocharger
– Turbocharger – Install – First Stage Turbocharger
– Turbocharger – Install – Second Stage Turbocharger
– Turbocharger – Install – Second Stage Turbocharger
– Turbocharger – Remove – First Stage Turbocharger
– Turbocharger – Remove – Second Stage Turbocharger
– Turbocharger Exhaust Temperature Sensor – Remove and
– Valve Mechanism Cover – Remove and Install
– Vibration Damper and Pulley – Install
– Vibration Damper and Pulley – Remove
– Wastegate Solenoid – Remove and Install
– Water Pump – Install
– Water Pump – Remove
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly C7.1 Engines for Caterpillar Built Machines
– Accessory Drive – Remove and Install – Accessory Drive SAE
– Accessory Drive – Remove and Install – Accessory Drive SAE
– Air Compressor – Remove and Install – Single Cylinder
– Air Compressor – Remove and Install – Twin Cylinder
– Alternator – Install
– Alternator – Remove
– Alternator Belt – Remove and Install
– Atmospheric Pressure Sensor – Remove and Install
– Bearing Clearance – Check
– Belt Tensioner – Remove and Install
– Boost Pressure Sensor – Remove and Install
– Camshaft – Remove and Install
– Camshaft Bearings – Remove and Install
– Camshaft Gear – Remove and Install
– Camshaft Position Sensor – Remove and Install
– Clean Emissions Module – Remove and Install
– Connecting Rod Bearings – Install – Connecting rods in position
– Connecting Rod Bearings – Remove – Connecting rods in
– Coolant Temperature Sensor – Remove and Install
– Crankcase Breather – Install
– Crankcase Breather – Remove
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Remove and Install
– Crankshaft Front Seal – Remove and Install – Crankshaft Front
– Crankshaft Gear – Remove and Install
– Crankshaft Main Bearings – Remove and Install – Crankshaft
– Crankshaft Position Sensor – Remove and Install
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Crankshaft Timing Ring – Remove and Install
– Cylinder Head – Install
– Cylinder Head – Remove
– DEF Injector and Mounting – Remove and Install
– Diesel Exhaust Fluid Lines – Remove and Install
– Diesel Exhaust Fluid Module – Assemble
– Diesel Exhaust Fluid Module – Disassemble
– Diesel Exhaust Fluid Pump – Remove and Install
– Diesel Exhaust Fluid Tank – Remove and Install
– ECM Mounting Bracket – Remove and Install
– Electric Starting Motor – Remove and Install
– Electronic Control (Diesel Exhaust Fluid) – Remove and Install
– Electronic Control Module – Remove and Install – Electronic
– Electronic Unit Injector – Install
– Electronic Unit Injector – Remove
– Engine Oil Cooler – Install – Engine Oil Cooler with a High
– Engine Oil Cooler – Install – Engine Oil Cooler with a Low
– Engine Oil Cooler – Remove – Engine Oil Cooler with a High
– Engine Oil Cooler – Remove – Engine Oil Cooler with a Low
– Engine Oil Filter Base – Remove and Install
– Engine Oil Filter Base – Remove and Install – Engine Oil Filter
– Engine Oil Pan – Install – Aluminum Oil Pan
– Engine Oil Pan – Remove – Aluminum Oil Pan
– Engine Oil Pan Plate – Remove and Install – Aluminum Oil Pan
– Engine Oil Pressure Sensor – Remove and Install
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Exhaust Back Pressure Valve – Remove and Install
– Exhaust Cooler (NRS) – Remove and Install
– Exhaust Gas Valve (NRS) – Remove and Install
– Exhaust Manifold – Remove and Install
– Exhaust Manifold and Turbocharger – Install
– Exhaust Manifold and Turbocharger – Remove
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Flexible Exhaust Pipe – Remove and Install
– Flow Control Valve – Remove and Install
– Flywheel – Install
– Flywheel – Install – Equipped with Rear Power Take-Off
– Flywheel – Remove
– Flywheel – Remove – Equipped with Rear Power Take-Off
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install
– Flywheel Housing – Remove and Install – Flywheel Housing that is
– Flywheel Housing – Remove and Install – Standard Housing
– Front Cover – Remove and Install
– Front Cover – Remove and Install – Heavy Duty Front Cover
– Fuel Filter Base – Remove and Install – Single Secondary Fuel
– Fuel Filter Base – Remove and Install – Twin Secondary Fuel
– Fuel Injection Lines – Install
– Fuel Injection Lines – Remove
– Fuel Injection Pump – Install
– Fuel Injection Pump – Remove
– Fuel Injection Pump Gear – Install
– Fuel Injection Pump Gear – Remove
– Fuel Manifold (Rail) – Remove and Install
– Fuel Pressure Sensor – Remove and Install
– Fuel Priming Pump – Remove and Install – Electric Fuel Lift
– Fuel Temperature Sensor – Remove and Install
– Gear Group (Front) – Remove and Install
– Gear Group (Front) – Remove and Install – Heavy Duty Gear
– Glow Plugs – Remove and Install
– Housing (Front) – Install
– Housing (Front) – Install – Heavy Duty Housing (Front)
– Housing (Front) – Remove
– Housing (Front) – Remove – Heavy Duty Housing (Front)
– Idler Gear – Install
– Idler Gear – Remove
– Idler Pulley – Remove and Install – Flat Idler Pulley
– Idler Pulley – Remove and Install – Grooved Idler Pulley
– Inlet Air Control – Install – NRS Inlet Air Mixer
– Inlet Air Control – Remove – NRS Inlet Air Mixer
– Inlet and Exhaust Valve Springs – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Inlet Manifold Temperature Sensor – Remove and Install
– Lifter Group – Remove and Install – Hydraulic Lifter Group
– Manifold (DEF Heater) – Remove and Install
– Nitrogen Oxide Sensor – Remove and Install – Nitrogen Oxide
– Nitrogen Oxide Sensor – Remove and Install – Original
– 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
– Pressure Sensor (Cooled Exhaust Gas) – Remove and Install –
– Rear Power Take-Off (RPTO) – Install
– Rear Power Take-Off (RPTO) – Remove
– Refrigerant Compressor – Remove and Install
– Relief Valve (Fuel) – Remove and Install
– Rocker Shaft – Assemble
– Rocker Shaft – Disassemble
– Rocker Shaft and Pushrod – Install
– Rocker Shaft and Pushrod – Remove
– Solenoid Valve (DEF Heater Coolant) – Remove and Install
– Soot Antenna – Remove and Install
– Support and Mounting (CEM) – Remove and Install
– Temperature Sensor (Cooled Exhaust Gas) – Remove and
– Temperature Sensor (DPF) – Remove and Install – Inlet and
– Turbocharger – Install – First Stage Turbocharger
– Turbocharger – Install – First Stage Turbocharger
– Turbocharger – Install – Second Stage Turbocharger
– Turbocharger – Install – Second Stage Turbocharger
– Turbocharger – Remove – First Stage Turbocharger
– Turbocharger – Remove – Second Stage Turbocharger
– Turbocharger Exhaust Temperature Sensor – Remove and
– Valve Mechanism Cover – Remove and Install
– Vibration Damper and Pulley – Install
– Vibration Damper and Pulley – Remove
– Voltage Load Protection Module – Remove and Install
– Wastegate Solenoid – Remove and Install
– Water Pump – Install
– Water Pump – Remove
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Temperature Regulator – Remove and Install
Schematic Caterpillar 950 GC Wheel Loader Electrical System
– Feature
– Cover Page
– Information
– Component Location
– Vol 1 – Cab Wiring
– Vol 2 – Chassis Wiring
– Vol 3 – Engine
– Connector Location
– Vol 1 – Cab Wiring
– Vol 2 – Chassis Wiring
– Vol 3 – Engine
– Schematics
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– Vol 1 – Cab Wiring
– Unspecified Circuit
– Black (Ground)
– 032 (Red) (Battery Power)
– 640 (Blue) (Key Power)
– 305 (Lt Blue) (Converter 12v Out)
– 021 (Orange) (Starting)
– 258 (Dk Purple) (Transmission Control)
– 509 (Lt Pink) (Engine Control)
– 613 (Dk Yellow) (Heat/AC)
– 4665 (Tan) (Turn/Wiper/Washer)
– CON 346 (CAT D.L.)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– SUB 651 (Blue Gray) (Ethernet)
– Vol 2 – Chassis Wiring
– Unspecified Circuit
– Black (Ground)
– 032 (Red) (Battery Power)
– 640 (Blue) (Key Power)
– 021 (Orange) (Starting)
– 190 (Dk Pink) (Start Aid)
– 258 (Dk Purple) (Transmission Control)
– 509 (Lt Pink) (Engine Control)
– 613 (Dk Yellow) (Heat/AC)
– 4665 (Tan) (Turn/Wiper/Washer)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– CON 141 (CAN “C” D.L.)
– Vol 3 – Engine
– Unspecified Circuit
– Black (Ground)
– 509 (Lt Pink) (Engine Control)
– CON 190 (CAN “A” D.L.)
– Machine Views
– Vol 1 – Cab Wiring
– Cab Interior View
– Cab Rear View
– Cab Right View
– Front Dash View
– Fuse block
– HVAC Panel View
– Operator Console
– RH Console View
– Vol 2 – Chassis Wiring
– Chassis Left View
– Chassis Right View
– Engine Left View
– Engine Right View
– Front Chassis
– LH Ladder View
– PETU View
– Radiator
– Transmission
– Vol 3 – Engine
– Engine Front View
– Engine Rear View
Schematic Caterpillar 950 GC Wheel Loader Electrical System
Schematic Caterpillar 950 GC Wheel Loader Electrical System
– Feature
– Cover Page
– Information
– Component Location
– Cab
– Chassis and Engine
– Connector Location
– Cab
– Chassis and Engine
– Schematics
– Cab
– Chassis and Engine
– Machine Views
– Cab
– Front Dash View
– Fuse Block
– Rear Cab Interior View
– Rear Cab View
– RH Cab Exterior View
– RH Console View
– Chassis and Engine
– Aftertreatment
– Engine Top View
– Engine – View From Left of Machine
– Engine – View From Right of Machine
– Front Chassis View
– Front View of Petu
– LH Ladder View
– LH Rear Chassis View
– Rear Chassis View
– Rear View of Petu
– RH Rear Chassis View
– Transmission
Schematic Caterpillar 950 GC Wheel Loader Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Schematic
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– 021 (Orange) (Pilot Control Output)
– 032 (Red) (Implement Pump Output)
– 141 (Lt Orange) (Fan Pump Output)
– 190 (Dk Pink) (Secondary Steering Pump Output)
– 258 (Dk Purple) (Lift Cylinder Control Circuit)
– 305 (Lt Blue) (Steering Cylinder Control Circuit)
– 346 (Med Green) (Steering Load Sense Control Circuit)
– 347 (Dk Green) (Supply Line)
– 430 (Dk Gray) (Tilt Cylinder Control Circuit)
– 464 (Brown) (Brake Control Circuit)
– 522 (Lt Purple) (Implement Load Sense Control Circuit)
– 577 (Lt Green) (Drain / Return Line)
– 613 (Dk Yellow) (Quick Coupler Cylinder Control Circuit)
– 640 (Blue) (Steering Pump Output)
– 4665 (Tan) (Auxiliary Control Circuit)
– Machine Views
– Implement and Third Auxiliary Valve
– LH Machine Front
– Machine Front
– Machine Rear
– Operator Seat
– Reversing Fan
– RH Machine Top
– Secondary Steering
Schematic Caterpillar 950 GC Wheel Loader Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Schematic
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– 021 (Orange) (Pilot Oil Control Circuit)
– 032 (Red) (Implement Pump Output)
– 141 (Lt Orange) (Fan Pump Output)
– 190 (Dk Pink) (Steering Pump Output)
– 258 (Dk Purple) (Aux. Valve Control Circuit)
– 305 (Lt Blue) (Steering Cylinder Control Circuit)
– 347 (Dk Green) (Supply Line)
– 464 (Brown) (Brake Control Circuit)
– 577 (Lt Green) (Drain / Return Line)
– 613 (Dk Yellow) (Tilt Cylinder Control Circuit)
– 651 (Blue Gray) (Lift Cylinder Control Circuit)
– CON 032 (Red/Black Stripe) (Load Sensing Circuit)
– CON 190 (Dk Pink/Black Stripe) (Secondary Steering Control Circuit)
– Machine Views
– Machine Right and Left Side
– Pilot Control (Lift/Tilt)
– Tank GP
– Valve – 2 Function
Schematic Caterpillar Cat Payload Kit For Medium Wheel Loaders Electrical System
Specifications 950 GC Wheel Loader Braking and Hydraulic Fan System
– Brake Control Valve (Parking)
– Brake Control Valve (Service)
– Check Valve (Hydraulic Oil Cooler Bypass)
– Fan Reversing Valve
– Foot Brake Control
– Gear Motor (Hydraulic Fan)
– Gear Motor (Hydraulic Fan)
– Limit Switch (Stop Light)
– Oil Filter (Hydraulic)
– Parking Brake Actuator
– Pressure Sensor (Parking Brake Oil)
– Pressure Sensor (Service Brake Oil)
– Solenoid Valve (Fan Bypass)
– Solenoid Valve (Hydraulic Fan)
– Solenoid Valve (Reversing Fan)
– Temperature Sensor (Hydraulic Oil)
Specifications 950 GC Wheel Loader Electrohydraulic System
– Bucket Control
– Check Valve (Hydraulic Oil Cooler Bypass)
– Coupler Cylinder – Quick Coupler
– Electrohydraulic Control
– Main Control Valve
– Main Control Valve
– Oil Filter (Hydraulic)
– Pilot Valve
– Piston Pump (Implement, Steering)
– Pump Control Valve (Implement)
– Ride Control Accumulator
– Solenoid Valve (Fan Bypass)
– Temperature Sensor (Hydraulic Oil)
Specifications 950 GC Wheel Loader Machine Systems
– Air Cleaner
– Air Cleaner – Mounting
– Air Conditioner
– Air Conditioner
– Air Conditioner Lines
– Air Conditioner Lines
– Bucket Control
– Cab – Cover
– Cab – Roof
– Cab Air Duct
– Counterweight
– Cutting Edges, End Bits and Teeth
– Cutting Edges, End Bits and Teeth
– Enclosed Rollover Protective Structure (ROPS)
– Flood Lamp
– Lift Arm
– Liquid Level Sensor (Water Separator)
– Quick Coupler
– Window Wiper and Wiper Motor
Specifications 950 GC Wheel Loader Power Train
– Axle Mounting
– Differential and Bevel Gear
– Differential and Bevel Gear
– Differential Flow Control Valve
– Drive Shaft
– Dump Valve (Transmission)
– Fixed Axle Housing (Front)
– Oil Filter (Power Train)
– Oscillating Axle Housing (Rear)
– Power Train Oil Filler
– Relief Valve (Torque Converter Inlet)
– Rim Mounting
– Selector and Pressure Control Valve
– Speed Sensor (Transmission Output)
– Transmission Oil Cooler
Specifications 950 GC Wheel Loader Steering System
– Piston Pump (Implement, Steering)
– Pressure Reducing Valve (Steering)
– Pressure Switch (Secondary Steering)
– Relay (Secondary Steering Motor)
– Secondary Steering Pump and Electric Motor
– Secondary Steering Valve
– Steering Control Group
– Steering Cylinder
– Temperature Sensor (Hydraulic Oil)
Specifications C7.1 Engines for Caterpillar Built Machines
– Alternator
– Belt Tensioner
– Boost Pressure Sensor
– Camshaft
– Camshaft Bearings
– Connecting Rod
– Connecting Rod Bearing Journal
– Coolant Temperature Sensor
– Crankcase Breather
– Crankshaft
– Crankshaft Seals
– Cylinder Block
– Cylinder Head
– Cylinder Head Valves
– Diesel Exhaust Fluid Pump
– Diesel Exhaust Fluid Tank
– Electronic Control Module
– Engine Design
– Engine Lifting Bracket
– Engine Oil Cooler
– Engine Oil Filter Base
– Engine Oil Pan
– Engine Oil Pressure
– Engine Oil Pressure Sensor
– Engine Oil Pump
– Exhaust Cooler (NRS)
– Exhaust Manifold
– Fan Drive
– Flexible Exhaust Pipe
– Flywheel
– Flywheel Housing
– Front Housing and Covers
– Fuel Filter Base – Primary Fuel Filter Base
– Fuel Filter Base – Single Secondary Fuel Filter Base
– Fuel Injection Lines
– Fuel Injection Nozzles
– Fuel Injection Pump
– Fuel Manifold (Rail)
– Fuel Transfer Pump – Electric Transfer Pump
– Gear Group (Front)
– Glow Plugs
– Injector (Diesel Exhaust Fluid)
– Inlet Manifold Temperature Sensor
– Lifter Group
– Main Bearing Journal
– Manifold (Diesel Exhaust Fluid)
– Nitrogen Oxide Sensor
– Piston and Rings
– Piston Cooling Jet
– Pressure Sensor (NOx Reduction System) – Differential
– Refrigerant Compressor
– Rocker Shaft
– Soot Antenna
– Speed/Timing Sensor
– Starter Motor
– Temperature Sensor (DOC Inlet)
– Temperature Sensor (DPF Inlet)
– Temperature Sensor (DPF Inlet)
– Temperature Sensor (Exhaust)
– Temperature Sensor (Exhaust) – Selective Catalytic Reduction
– Temperature Sensor (NOx Reduction System)
– Turbocharger – Single Turbocharger
– Turbocharger Exhaust Temperature Sensor
– Valve Mechanism Cover
– Vibration Damper and Pulley
– Water Pump
– Water Temperature Regulator and Housing
Specifications C7.1 Engines for Caterpillar Built Machines
– Alternator
– Atmospheric Pressure Sensor
– Belt Tensioner
– Boost Pressure Sensor
– Camshaft
– Camshaft Bearings
– Connecting Rod
– Connecting Rod Bearing Journal
– Coolant Temperature Sensor
– Crankcase Breather
– Crankshaft
– Crankshaft Seals
– Cylinder Block
– Cylinder Head
– Cylinder Head Valves
– Diesel Exhaust Fluid Pump
– Diesel Exhaust Fluid Tank
– Electronic Control (Diesel Exhaust Fluid)
– Electronic Control Module
– Engine Design
– Engine Lifting Bracket
– Engine Oil Cooler
– Engine Oil Filter Base
– Engine Oil Pan
– Engine Oil Pressure
– Engine Oil Pressure Sensor
– Engine Oil Pump
– Exhaust Cooler (NRS)
– Exhaust Gas Valve (NRS)
– Exhaust Manifold
– Fan Drive
– Flexible Exhaust Pipe
– Flywheel
– Flywheel Housing
– Front Housing and Covers
– Fuel Filter Base – Primary Fuel Filter Base
– Fuel Filter Base – Single Secondary Fuel Filter Base
– Fuel Injection Lines
– Fuel Injection Nozzles
– Fuel Injection Pump
– Fuel Manifold (Rail)
– Fuel Transfer Pump – Electric Transfer Pump
– Gear Group (Front)
– Glow Plugs
– Injector (Diesel Exhaust Fluid)
– Inlet Manifold Temperature Sensor
– Lifter Group
– Main Bearing Journal
– Manifold (Diesel Exhaust Fluid)
– Nitrogen Oxide Sensor
– Piston and Rings
– Piston Cooling Jet
– Pressure Sensor (NOx Reduction System)
– Refrigerant Compressor
– Rocker Shaft
– Soot Antenna
– Speed/Timing Sensor
– Starter Motor
– Temperature Sensor (DPF Inlet)
– Temperature Sensor (Exhaust)
– Temperature Sensor (NOx Reduction System)
– Turbocharger – Single Turbocharger
– Turbocharger Exhaust Temperature Sensor
– Valve Mechanism Cover
– Vibration Damper and Pulley
– Water Pump
– Water Temperature Regulator and Housing
Systems Operation & Testing and Adjusting C7.1 Engines for Caterpillar Built Machines
– Aftertreatment SCR System Dosing – Test
– Air in Fuel – Test
– Air Inlet and Exhaust System – Inspect
– Air Inlet and Exhaust System – Series Turbochargers
– Air Inlet and Exhaust System – Single Turbocharger
– Alternator – Test
– Basic Engine
– Battery – Test
– Charging System – Test
– Clean Emissions Module
– Cleanliness of Fuel System Components
– Compression – Test
– Connecting Rod – Inspect
– Cooling System
– Cooling System – Check
– Cooling System – Inspect
– Cooling System – Test
– Cylinder Block – Inspect
– Cylinder Head – Inspect
– DEF Dosing Control System
– Diesel Exhaust Fluid Quality – Test
– Diesel Exhaust Fluid Tank – Flush
– Electric Starting System – Test
– Electrical System
– Electronic Control System
– Engine Oil Cooler – Inspect
– Engine Oil Pressure – Test
– Engine Oil Pump – Inspect
– Engine Valve Lash – Inspect
– Excessive Bearing Wear – Inspect
– Excessive Engine Oil Consumption – Inspect
– Exhaust Cooler (NRS) – Test
– Finding Top Center Position for No. 1 Piston
– Flywheel – Inspect
– Flywheel Housing – Inspect
– Fuel Injection
– Fuel Injection – Engines with a Primary and Secondary Fuel
– Fuel Quality – Test
– Fuel System – Inspect
– Fuel System – Prime
– Gear Group (Front) – Time
– Gear Group – Inspect
– Glossary of Electronic Control Terms
– Increased Engine Oil Temperature – Inspect
– Introduction
– Lubrication System
– Piston Height – Inspect
– Piston Ring Groove – Inspect
– Position the Valve Mechanism Before Maintenance Procedures
– Power Sources
– Turbocharger – Inspect – Series Turbochargers
– Turbocharger – Inspect – Single Turbocharger
– V-Belt – Test
– Valve Depth – Inspect
– Valve Guide – Inspect
– Vibration Damper – Check
– Water Pump – Inspect
– Water Temperature Regulator – Test
Systems Operation 950 GC Wheel Loader Hydraulic System
– General Information (Hydraulic System)
– Main Control Valve
– Monitoring System (Hydraulic Functions)
– Oil Coolers and Cooling System Operation
– Pilot Hydraulic System
– Pilot Valve
– Piston Pump (Implement)
– Quick Coupler System
– Relief Valve (Line)
– Relief Valve (Load Sensing Signal)
– Ride Control System
Systems Operation 950 GC Wheel Loader Power Train
– Autoshift Control
– Data Link
– Differential (Standard)
– Dump Valve (Transmission)
– Electronic Control Module (Power Train)
– Fixed Axle and Oscillating Axle
– General Information
– Graphic Color Codes
– Input Components
– Limited Slip Differential
– Oil Filter (Power Train)
– Output Components
– Output Transfer Gears
– Power Train Electronic Control System
– Torque Converter
– Transmission Control Valve
– Transmission Hydraulic System
– Transmission Lubrication
– Transmission Oil Cooler
– Transmission Oil Pump
– Transmission Power Flow
Testing and Adjusting & Systems Operation C7.1 Engines for Caterpillar Built Machines
– Aftertreatment SCR System Dosing – Test
– Air in Fuel – Test
– Air Inlet and Exhaust System – Inspect
– Air Inlet and Exhaust System – Series Turbochargers
– Air Inlet and Exhaust System – Single Turbocharger
– Alternator – Test
– Basic Engine
– Battery – Test
– Charging System – Test
– Clean Emissions Module
– Cleanliness of Fuel System Components
– Compression – Test
– Connecting Rod – Inspect
– Cooling System
– Cooling System – Check
– Cooling System – Inspect
– Cooling System – Test
– Cylinder Block – Inspect
– Cylinder Head – Inspect
– DEF Dosing Control System
– Diesel Exhaust Fluid Quality – Test
– Diesel Exhaust Fluid Tank – Flush
– Electric Starting System – Test
– Electrical System
– Electronic Control System
– Engine Oil Cooler – Inspect
– Engine Oil Pressure – Test
– Engine Oil Pump – Inspect
– Engine Valve Lash – Inspect
– Excessive Bearing Wear – Inspect
– Excessive Engine Oil Consumption – Inspect
– Exhaust Cooler (NRS) – Test
– Finding Top Center Position for No. 1 Piston
– Flywheel – Inspect
– Flywheel Housing – Inspect
– Fuel Injection
– Fuel Injection – Engines with a Primary and Secondary Fuel
– Fuel Injection Timing – Check
– Fuel Quality – Test
– Fuel System – Inspect
– Fuel System – Prime
– Gear Group (Front) – Time
– Gear Group – Inspect
– Glossary of Electronic Control Terms
– Increased Engine Oil Temperature – Inspect
– Introduction
– Lubrication System
– Piston Height – Inspect
– Piston Ring Groove – Inspect
– Position the Valve Mechanism Before Maintenance Procedures
– Power Sources
– Turbocharger – Inspect – Series Turbochargers
– Turbocharger – Inspect – Single Turbocharger
– V-Belt – Test
– Valve Depth – Inspect
– Valve Guide – Inspect
– Vibration Damper – Check
– Water Pump – Inspect
– Water Temperature Regulator – Test
Troubleshooting C4.4 and C7.1 Engines
– Acceleration Is Poor or Throttle Response Is Poor
– Aftertreatment Identification Module – Test
– Alternator Problem – Charging Problem and/or Noisy
– Battery Problem
– Belt Tensioner Noise
– CAN Data Link – Test
– Clean Emissions Module Has High Oxygen Level
– Codes that Inhibit Operation of Aftertreatment System
– Component Location
– Configuration Parameters
– Coolant Contains Oil
– Coolant Level – Test
– Coolant Level Is Low
– Coolant Temperature Is High
– Coolant Temperature Is Low
– Cooling Fan – Calibrate – If Applicable
– Cooling Fan Control – Test
– Cooling Fan Control – Test – Hydraulic Driven Fan
– Cooling Fan Is Always ON
– Cooling Fan Reversing – Test
– Cooling Fan Speed – Test
– Crankcase Breather Ejects Oil
– Crankcase Fumes Disposal Tube Has Oil Draining
– Customer Passwords
– Cylinder Is Noisy
– Data Link Configuration Status – Test
– DEF Does Not Purge
– DEF Line Heater – Test
– DEF Module Does Not Respond
– DEF Pressure Is High
– DEF Pressure Is Low
– DEF Pump – Replace
– DEF Pump Motor – Test
– DEF Pump Pressure Sensor – Test
– DEF Return Valve – Test
– DEF Tank Level Is Low
– DEF Tank Sensor – Test
– DEF Tank Temperature Is High
– DEF Temperature Is Low
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– Diesel Oxidation Catalyst Has Incorrect Inlet Temperature
– Diesel Oxidation Catalyst Has Low Conversion Efficiency
– Diesel Particulate Filter Collects Excessive Soot
– Diesel Particulate Filter Temperature Is Low
– ECM – Replace
– ECM Software – Install
– ECM Will Not Accept Factory Passwords
– Electrical Connectors
– Electrical Connectors – Inspect
– Electrical Power Supply – Test
– Electronic Service Tool Does Not Communicate
– Electronic Service Tools
– Engine Cranks but Does Not Start – C4.4 Engines Only
– Engine Cranks but Does Not Start – C7.1 Engines Only
– Engine Does Not Crank
– Engine Has Early Wear
– Engine Has Mechanical Noise (Knock)
– Engine Misfires, Runs Rough or Is Unstable
– Engine Monitoring System
– Engine Overcrank Occurrence
– Engine Overspeeds
– Engine Shutdown Occurs Intermittently
– Engine Shutdown While Idling
– Engine Speed – Test
– Engine Stalls at Low RPM
– Engine Top Speed Is Not Obtained
– Engine Vibration Is Excessive
– Ether Actuation Occurrence Is Excessive
– Ether Starting Aid – Test
– Event Codes
– Exhaust Has Excessive Black Smoke
– Exhaust Has Excessive White Smoke
– Exhaust System Contains Coolant
– Exhaust System Contains Oil
– Exhaust Temperature Is High
– Factory Passwords
– Fuel Consumption Is Excessive
– Fuel Contains Water
– Fuel Filter Is Restricted
– Fuel Pressure Is Low
– Fuel Rail Pressure Is High – C4.4 Engines Only
– Fuel Rail Pressure Leakage Is High – C4.4 Engines Only
– Fuel Rail Pressure Leakage Is High – C7.1 Engines Only
– Fuel Rail Pressure Problem
– Fuel Rail Pressure Problem
– Fuel Temperature Is High
– Fuel Transfer Pump – Test
– General Information
– Glow Plug Starting Aid – Test
– Idle Validation – Test
– Injector Code – Calibrate
– Injector Data Incorrect – Test
– Injector Solenoid – Test
– Inlet Air Is Restricted
– Intake Manifold Air Pressure Is High
– Intake Manifold Air Pressure Is Low
– Intake Manifold Air Temperature Is High
– Mode Selection – Test
– Motorized Valve – Test
– NOx Conversion Is Low
– NRS Exhaust Gas Temperature Is High
– NRS Mass Flow Rate Problem
– Oil Consumption Is Excessive
– Oil Contains Coolant
– Oil Contains Fuel
– Oil Level Is Low
– Oil Pressure Is Low
– Power Is Intermittently Low or Power Cutout Is Intermittent
– Power Take-Off – Test
– Relay – Test – Start Relay
– SCR Catalyst Has Incorrect Inlet Temperature
– SCR Inducement Emergency Override
– SCR Warning System Problem
– Sensor (Data Link Type) – Test
– Sensor Calibration Required – Test
– Sensor Signal (Analog, Active) – Test
– Sensor Signal (Analog, Passive) – Test
– Sensor Signal (PWM) – Test
– Sensor Supply – Test
– Service Information Report
– Service Tool Error Identifiers
– Service Tool Features
– Shutdown – Test
– Solenoid Valve – Test
– Solenoid Valve – Test – Fuel Rail Pressure Relief Valve (C4.4
– Soot Sensor – Test
– Speed Control (Analog) – Test
– Speed Control (PWM) – Test
– Speed/Timing – Test
– Switch Circuits – Test – Air Filter Restriction Switch
– Switch Circuits – Test – Multiposition Throttle Switch
– System Overview
– Test ECM Mode
– Valve Lash Is Excessive
– Valve Position – Test
– Water in Fuel – Test
– Welding Precaution
Troubleshooting C7.1 Engines
– Acceleration Is Poor or Throttle Response Is Poor
– Aftertreatment Identification Module – Test
– Alternator Problem – Charging Problem and/or Noisy
– Battery Problem
– CAN Data Link – Test
– Clean Emissions Module Has High Oxygen Level
– Codes that Inhibit Operation of Aftertreatment System
– Component Location
– Configuration Parameters
– Coolant Contains Oil
– Coolant Level – Test
– Coolant Level Is Low
– Coolant Pressure Is Low
– Coolant Temperature Is High
– Cooling Fan – Calibrate – If Applicable
– Cooling Fan Control – Test – Hydraulic Driven Fan
– Cooling Fan Control – Test – Viscous Clutch Fan
– Cooling Fan Is Always ON
– Cooling Fan Reversing – Test – Hydraulic Driven Fan
– Cooling Fan Speed – Test
– Crankcase Breather Ejects Oil
– Crankcase Fumes Disposal Tube Has Oil Draining
– Customer Passwords
– Cylinder Is Noisy
– Data Link – Test
– Data Link Configuration Status – Test
– DEF Control Module Power – Test
– DEF Control Module Temperature Is High
– DEF Does Not Purge
– DEF Line Heater – Test
– DEF Module Does Not Respond
– DEF Pressure Is High
– DEF Pressure Is Low
– DEF Pump – Replace
– DEF Pump Motor – Test
– DEF Pump Pressure Sensor – Test
– DEF Pump Sensor Supply – Test
– DEF Return Valve – Test
– DEF Tank Level Is Low
– DEF Tank Sensor – Test
– DEF Tank Temperature Is High
– DEF Temperature Is Low
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– Diesel Oxidation Catalyst Has Incorrect Inlet Temperature
– Diesel Oxidation Catalyst Has Low Conversion Efficiency
– Diesel Particulate Filter Collects Excessive Soot
– Diesel Particulate Filter Temperature Is Low
– ECM – Replace
– ECM – Replace
– ECM Software – Install
– ECM Will Not Accept Factory Passwords
– Electrical Connectors
– Electrical Connectors – Inspect
– Electrical Power Supply – Test
– Electronic Service Tool Does Not Communicate
– Electronic Service Tools
– Engine Cranks but Does Not Start
– Engine Does Not Crank
– Engine Has Early Wear
– Engine Has Mechanical Noise (Knock)
– Engine Misfires, Runs Rough or Is Unstable
– Engine Monitoring System
– Engine Overcrank Occurrence
– Engine Overspeeds
– Engine Shutdown Occurrence
– Engine Shutdown Occurs Intermittently
– Engine Stalls at Low RPM
– Engine Top Speed Is Not Obtained
– Engine Vibration Is Excessive
– Ether Starting Aid – Test
– Event Codes
– Exhaust Has Excessive Black Smoke
– Exhaust Has Excessive White Smoke
– Exhaust System Contains Coolant
– Exhaust System Contains Oil
– Exhaust Temperature Is High
– Factory Passwords
– Fuel Consumption Is Excessive
– Fuel Contains Water
– Fuel Filter Is Restricted
– Fuel Pressure Is Low
– Fuel Rail Pressure Problem
– Fuel Temperature Is High
– Fuel Transfer Pump – Test
– General Information
– Glow Plug Starting Aid – Test
– Idle Validation – Test
– Indicator Lamp Problem
– Injector Code – Calibrate
– Injector Data Incorrect – Test
– Injector Solenoid – Test
– Inlet Air Is Restricted
– Intake Manifold Air Pressure Is High
– Intake Manifold Air Pressure Is Low
– Intake Manifold Air Temperature Is High
– Mode Selection – Test
– Motorized Valve – Test
– NOx Conversion Is Low
– NOx Sensor – Test
– NRS Exhaust Gas Temperature Is High
– NRS Mass Flow Rate Problem
– Oil Consumption Is Excessive
– Oil Contains Coolant
– Oil Contains Fuel
– Oil Level Is Low
– Oil Pressure Is Low
– Power Is Intermittently Low or Power Cutout Is Intermittent
– Power Take-Off – Test
– Relay – Test – ECM Power Relay
– Relay – Test – Start Relay
– SCR Catalyst Has Incorrect Inlet Temperature
– SCR Inducement Emergency Override
– SCR Warning System Problem
– Sensor (Data Link Type) – Test
– Sensor Calibration Required – Test
– Sensor Signal (Analog, Active) – Test – Sensors on the J1 ECM
– Sensor Signal (Analog, Active) – Test – Sensors on the J2 ECM
– Sensor Signal (Analog, Passive) – Test
– Sensor Signal (PWM) – Test
– Sensor Supply – Test
– Service Information Report
– Service Tool Error Identifiers
– Service Tool Features
– Shutdown (Ground Level) – Test
– Solenoid Valve – Test – Solenoid Valves that Connect to the
– Solenoid Valve – Test – Solenoid Valves that Connect to the
– Soot Sensor – Test
– Speed Control (Analog) – Test
– Speed Control (PWM) – Test
– Speed/Timing – Test
– Switch Circuits – Test – Air Filter Restriction Switch
– Switch Circuits – Test – Multiposition Throttle Switch
– System Overview
– Test ECM Mode
– Valve Lash Is Excessive
– Valve Position – Test
– Water in Fuel – Test
– Welding Precaution