Service manual Caterpillar D6 Track-Type Tractor with C9.3 Engine | GZ900001-UP

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® GRADE System for D5 and D6 Next Generation Track-Type Tractors
– Calibration
– Calibration Error Codes
– CAN Data Link – Test
– Connector Contact Description
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– ECM – Configure
– ECM – Replace
– ECM Software – Install
– Electrical Connector – Inspect
– Electrical Power Supply – Test
– Emerging Symptom Information
– Event Codes
– Features
– General Information
– General Information
– Machine Preparation for Troubleshooting
– Operator Control Switch (Switch to Ground) – Test
– Sensor (Data Link Type) – Test
– Service Tools
– Solenoid Valve – Test
– Symptom Troubleshooting
– System Accuracy – Test
– System Components
– Visual Inspection
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
D6 Track-Type Tractors Information Display
– Bi-Directional Menu
– CAN Data Link – Test
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Operation
– Diagnostic Trouble Codes
– Display Features
– Display Settings
– ECM – Replace
– ECM Summary Menu
– Event Codes
– Functions Menu
– General Information
– Indication Display Module – Indicator and Message Window
– Machine Settings Menu
– Menu Navigation
– Module – Flash Program
– Network Connectivity – Test
– Operator Menu
– Operator Profile Menu
– Performance Pages
– Pop-Up Messages
– Sensor Supply – Test
– Service Menu
– Service Test Menu
– Service Tools
– Software – Test
– System Schematic
– Totals Menu
D6 Track-Type Tractors Information Display
– Bi-Directional Menu
– CAN Data Link – Test
– Connector Contact Description
– Connector Locations
– Data Link Configuration Status – Test
– Determining Diagnostic Trouble Codes
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Operation
– Display Features – Start-Up Procedure
– Display Settings
– ECM – Replace
– ECM Software – Install
– ECM Summary Menu
– Electrical Connector – Inspect
– Emerging Symptom Information
– Ethernet Data Link – Test
– Event Codes
– Functions Menu
– General Information
– Indication Display Module – Indicator Ribbon and Message
– Machine Settings Menu
– Menu Navigation
– Module – Flash Program
– Module – Replace
– Network Connectivity – Test
– Operator Menu
– Operator Profile Menu
– Performance Pages
– Pop-Up Messages – Monitoring System Action Lamps and
– Service Menu
– Service Test Menu
– Service Tools
– Software – Test
– Symptom Troubleshooting
– System Schematic
– System Schematic
– Totals Menu
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Disassembly and Assembly C9.3B Engines for Caterpillar Built Machines
– Air Cleaner – Remove and Install
– Air Compressor – Remove and Install
– Alternator – Remove and Install
– Atmospheric Pressure Sensor – Remove and Install
– Bearing Clearance – Check
– Belt Tensioner – Remove and Install
– Camshaft – Install
– Camshaft – Remove
– Camshaft Bearings – Install
– Camshaft Bearings – Remove
– Camshaft Gear – Remove and Install
– Catalyst – Remove and Install
– Connecting Rod Bearings – Install
– Connecting Rod Bearings – Remove
– Coolant Temperature Sensor – Remove and Install
– Crankcase Breather – Remove and Install
– Crankcase Pressure Sensor – Remove and Install
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Install
– Crankshaft Front Seal – Remove
– Crankshaft Main Bearings – Install
– Crankshaft Main Bearings – Remove
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Cylinder Block Cover – Remove and Install
– Cylinder Head – Install
– Cylinder Head – Remove
– Cylinder Liner – Install
– Cylinder Liner – Remove
– 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 Particulate Filter – Remove and Install
– Disconnecting Snap To Connect Fittings
– Electric Starting Motor – Remove and Install
– Engine Control Module – Remove and Install
– Engine Oil Cooler – Remove and Install
– Engine Oil Filter Base – Remove and Install
– Engine Oil Pan – Install
– Engine Oil Pan – Remove
– Engine Oil Pressure Sensor – Remove and Install
– Engine Oil Pump – Remove and Install
– Exhaust Manifold – Remove and Install
– Flywheel – Install
– Flywheel – Remove
– Flywheel Housing – Remove and Install
– Front Cover – Remove and Install
– Fuel Control Valve – Remove and Install
– Fuel Filter Base – Remove and Install
– Fuel Injection Pump – Remove and Install
– Fuel Lines – Remove and Install
– Fuel Manifold (Rail) – Remove and Install
– Fuel Manifold – Remove and Install
– Fuel Pressure Sensor – Remove and Install
– Fuel Transfer Pump – Remove and Install
– Fumes Disposal Filter – Remove and Install
– Housing (Front) – Install
– Housing (Front) – Remove
– Inlet and Exhaust Valve Guides – Remove and Install
– Inlet and Exhaust Valve Seat Inserts – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Inlet Manifold – Remove and Install
– Inlet Manifold Pressure Sensor – Remove and Install
– Inlet Manifold Temperature Sensor – Remove and Install
– Lifter Group – Remove and Install
– Nitrogen Oxide Sensor (Exhaust Inlet) – Remove and Install
– Nitrogen Oxide Sensor (Exhaust Outlet) – Remove and Install
– Piston Cooling Jets – Remove and Install
– Pistons and Connecting Rods – Assemble – (Symmetrical)
– Pistons and Connecting Rods – Disassemble
– Pistons and Connecting Rods – Install
– Pistons and Connecting Rods – Remove
– Pressure Sensor (DPF) – Remove and Install
– Relief Valve (Fuel) – Remove and Install
– Rocker Arm – Assemble
– Rocker Arm – Disassemble
– Rocker Arm and Shaft – Remove and Install
– Solenoid Valve (Exhaust Balance) – Remove and Install
– Speed/Timing Sensor – Remove and Install – Camshaft
– Speed/Timing Sensor – Remove and Install – Crankshaft
– Temperature Sensor (Catalyst Inlet) – Remove and Install
– Temperature Sensor (DPF) – Remove and Install
– Throttle Valve (Intake Air) – Remove and Install
– Turbocharger – Remove and Install
– Unit Injector – Install
– Unit Injector – Remove
– Unit Injector Sleeve – Install
– Unit Injector Sleeve – Remove
– Valve Mechanism Cover – Remove and Install
– Vibration Damper and Pulley – Remove and Install
– Water Pump – Assemble
– Water Pump – Disassemble
– Water Pump – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly D6 Track-Type Tractor Engine Supplement
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Battery – Remove and Install
– Belt Tensioner – Remove and Install
– Catalyst (SCR) – Remove and Install
– Clean Emissions Module – Remove and Install
– Combustion Head – Remove and Install
– Coolant Tank – Remove and Install
– Crankshaft Front Seal and Wear Sleeve – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– DEF Injector and Mounting – Remove and Install
– Diesel Exhaust Fluid Filter – Remove and Install
– Diesel Exhaust Fluid Module – Remove and Install
– Diesel Exhaust Fluid Pump – Remove and Install
– Diesel Exhaust Fluid Tank – Remove and Install
– Diesel Particulate Filter – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Engine and Torque Converter – Connect
– Engine and Torque Converter – Remove and Install
– Engine and Torque Converter – Separate
– Engine Front Support – Remove and Install
– Engine Oil Filter Base and Oil Cooler – Remove and Install
– Engine Oil Pan – Remove and Install
– Engine Side Guards – Remove and Install
– Engine Side Guards – Remove and Install
– Engine Trunnion – Remove and Install
– Fan – Remove and Install
– Flexible Exhaust Pipe – Remove and Install
– Fuel Manifold (ARD) – Remove and Install – Clean Emissions
– Hood and Dust Ejector – Remove and Install
– Hood and Dust Ejector – Remove and Install
– Ignition Coil (ARD) – Remove and Install
– Inlet Module (Catalyst) – Remove and Install
– Manifold (DEF Heater) – Remove and Install
– Nitrogen Oxide Sensor – Remove and Install
– Nozzle Heater Harness – Remove and Install
– Power Train Oil Cooler – Remove and Install
– Precleaner – Remove and Install
– Pressure Sensor (ARD Combustion Air) – Remove and Install
– Pressure Sensor (DPF) – Remove and Install
– Primary Fuel Filter and Base – Remove and Install
– Radiator Core – Remove and Install
– Radiator Guard – Remove and Install
– Radiator Guard – Remove and Install
– Relay (ARD Nozzle Heater) – Remove and Install
– Secondary Fuel Filter and Base – Remove and Install
– Solenoid Valve (ARD Fuel) – Remove and Install
– Solenoid Valve (DEF Heater Coolant) – Remove and Install
– Temperature Sensor (Exhaust) – Remove and Install
– Turbocharger – Remove and Install
– Water Pump – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly D6 Track-Type Tractor Machine Systems
– Air Conditioner and Heater Components – Remove and Install
– Air Conditioner and Heater Fan Motor – Remove and Install
– Bottom Guard – Remove and Install
– Bulldozer Blade – Remove and Install
– Bulldozer Lift Cylinder – Assemble
– Bulldozer Lift Cylinder – Disassemble
– Bulldozer Lift Cylinder – Remove and Install
– Bulldozer Lift Cylinder Mounts – Remove and Install
– Bulldozer Tilt Cylinder – Remove and Install
– Cab – Remove and Install
– Cab Mounting – Remove and Install
– Control (Joystick) – Remove and Install
– Decelerator and Brake Control – Remove and Install
– Electronic Control Module – Remove and Install – Implement
– Electronic Control Module – Remove and Install – Machine
– Fuel Tank – Remove and Install
– Hydraulic Control Valve – Assemble
– Hydraulic Control Valve – Disassemble
– Hydraulic Control Valve – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Hydraulic Tank – Assemble
– Hydraulic Tank – Disassemble
– Hydraulic Tank – Remove and Install
– Joystick Control (Steering, Transmission) – Remove and Install
– Joystick Control Support – Remove and Install
– Piston Motor (Hydraulic Fan) – Assemble – Reversible fan
– Piston Motor (Hydraulic Fan) – Disassemble – Reversible fan
– Piston Motor (Hydraulic Fan) – Remove and Install
– Piston Pump (Hydraulic Fan) – Assemble
– Piston Pump (Hydraulic Fan) – Disassemble
– Piston Pump (Hydraulic Fan) – Remove and Install
– Piston Pump (Implement) – Assemble
– Piston Pump (Implement) – Disassemble
– Piston Pump (Implement) – Remove and Install
– Piston Pump (Steering) – Assemble
– Piston Pump (Steering) – Disassemble
– Piston Pump (Steering) – Remove and Install
– Piston Pump (Steering) – Remove and Install
– Quick-Drop Valve – Assemble
– Quick-Drop Valve – Disassemble
– Quick-Drop Valve – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Condenser Fan and Fan Motor – Remove and
– Refrigerant Dryer – Remove and Install
– Refrigerant Evaporator Core and Heater Core – Remove and
– Ripper Carriage (Beam) – Remove and Install
– Ripper Frame – Remove and Install
– Ripper Lift Cylinder – Assemble
– Ripper Lift Cylinder – Disassemble
– Ripper Lift Cylinder – Remove and Install
– Seat – Remove and Install
– Steering Motor – Assemble
– Steering Motor – Assemble
– Steering Motor – Disassemble
– Steering Motor – Disassemble
– Steering Motor – Remove and Install
– Steering Oil Filter and Base – Remove and Install
– Sweeps – Remove and Install
– Trunnion – Remove and Install
– Winch – Remove and Install
Disassembly and Assembly D6 Track-Type Tractor Power Train
– Axle – Remove and Install
– Bevel and Transfer Gears – Assemble
– Bevel and Transfer Gears – Disassemble
– Brake Control Valve – Assemble
– Brake Control Valve – Disassemble
– Brake Control Valve – Remove and Install
– Duo-Cone Conventional Seals – Install
– Equalizer Bar – Assemble
– Equalizer Bar – Disassemble
– Equalizer Bar – Remove and Install
– Equalizer Bar – Remove and Install
– Final Drive – Assemble
– Final Drive – Disassemble
– Final Drive – Remove and Install
– Final Drive Planetary Carrier (In Chassis) – Remove and Install
– Final Drive, Steering Differential, and Brake (Left Side) – Remove and
– Final Drive, Steering Planetary, and Brake (Right Side) –
– Idler – Remove and Install
– Lubrication Distribution Valve – Remove and Install
– Main Drive Shaft – Remove and Install
– Oil Filter and Base (Power Train) – Remove and Install
– Pivot Bar-Remove and Install
– Power Train Oil Pump – Assemble
– Power Train Oil Pump – Disassemble
– Power Train Oil Pump – Remove and Install
– Recoil Spring – Remove and Install
– Sprocket Segment – Remove and Install
– Steering Differential and Brake – Assemble
– Steering Differential and Brake – Disassemble
– Steering Planetary and Brake – Assemble
– Steering Planetary and Brake – Disassemble
– Torque Converter – Assemble
– Torque Converter – Disassemble
– Torque Converter – Remove and Install
– Torque Converter Outlet Relief Valve – Remove and Install
– Track – Connect
– Track – Connect – SystemOne Track
– Track – Separate
– Track – Separate – SystemOne Track
– Track Adjuster – Remove and Install
– Track Roller – Remove and Install
– Track Roller Frame (Front) – Remove and Install
– Track Roller Frame – Remove and Install
– Transmission – Assemble
– Transmission – Disassemble
– Transmission – Remove and Install
– Transmission and Bevel Gears – Connect
– Transmission and Bevel Gears – Remove and Install
– Transmission and Bevel Gears – Separate
– Transmission Hydraulic Control Valve – Remove and Install
Schematic Caterpillar D6 Bulldozer Electrical System
– Features
– Cover Page
– Information
– Component Location
– Vol 1 – Cab
– Vol 2 – Chassis Wiring
– Vol 3 – Engine and PETU
– Connector Location
– Vol 1 – Cab
– Vol 2 – Chassis Wiring
– Vol 3 – Engine and PETU
– Schematics
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– Vol 1 – Cab
– Unspecified Circuit
– Black (Ground)
– 032 (Red) (Battery Power)
– 640 (Blue) (Key Power)
– 305 (Lt Blue) (Converter 12v Out)
– 021 (Orange) (Starting)
– 258 (Dk Purple) (Machine Control Circuit)
– 464 (Brown) (Radio Wake Up Circuit)
– 509 (Lt Pink) (Engine Control)
– 613 (Dk Yellow) (Heat/AC)
– 4665 (Tan) (Turn/Wiper/Washer)
– CON 032 (RS232/485 D.L.)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– CON 141 (SAE J1939 Data Link 3)
– SUB 141 (Lt Orange) (Implement Control Circuit)
– 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) (Machine Control Circuit)
– 509 (Lt Pink) (Engine Master)
– 613 (Dk Yellow) (Heat/AC)
– CON 032 (RS232/485 D.L.)
– CON 509 (J1939/1587 D.L.)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– CON 141 (SAE J1939 Data Link 3)
– SUB 141 (Lt Orange) (Implement Control Circuit)
– SUB 651 (Blue Gray) (Ethernet)
– Vol 3 – Engine and PETU
– Black (Ground)
– 640 (Blue) (Key Power)
– 509 (Lt Pink) (Engine Master)
– CON 509 (J1939/1587 D.L.)
– Machine Views
– Vol 1 – Cab
– AC Condenser
– Cab – Condenser
– Cab – Dashboard
– Cab – Left and Right
– Cab – Left
– Cab – Rear
– Cab – Right
– Fuses and Relays
– Wipers
– Vol 2 – Chassis Wiring
– Chassis – Left Fender
– Engine – Left and Right
– Engine – Top
– Grade Control
– Implement Valves
– Machine – Right Rear
– Machine – Rear
– Machine – Right Fender
– Radiator Group
– Transmission
– Vol 3 – Engine and PETU
– CEM
– Engine Left Side
– Engine Right Side
– Engine Top
– PETU
Schematic Caterpillar D6 Bulldozer Power Train System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Schematic
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– 190 (Dk Pink) (Lube Pump Output)
– 258 (Dk Purple) (Transmission Pump Output)
– 347 (Dk Green) (Supply Line)
– 464 (Brown) (Brake Circuit)
– 577 (Lt Green) (Drain / Return Line)
– 305 (Lt Blue) (Scavenge Pump)
– Machine Views
– Machine Rear View
– Machine Top View
Schematic Caterpillar D6 LUC Track – Type Tractor Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Schematic
– Machine Views
– Machine View – Front
– Machine View – Rear
– Implement Stack
– Radiator Group
– Ripper and Winch Arrangement
– Attachment – Angle Blade Tilt
Schematic Caterpillar D6 LUC Track-Type Tractor Electrical System
– Features
– Cover Page
– Information
– Component Location
– Vol 1 – Cab
– Vol 2 – Chassis Wiring
– Vol 3 – Engine and PETU
– Connector Location
– Vol 1 – Cab
– Vol 2 – Chassis Wiring
– Vol 3 – Engine and PETU
– Schematics
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– Vol 1 – Cab
– Unspecified Circuit
– Black (Ground)
– 032 (Red) (Battery Power)
– 640 (Blue) (Key Power)
– 305 (Lt Blue) (Converter 12v Out)
– 021 (Orange) (Starting)
– 258 (Dk Purple) (Machine Control Circuit)
– 509 (Lt Pink) (Engine Control)
– 613 (Dk Yellow) (Heat/AC)
– 4665 (Tan) (Turn/Wiper/Washer)
– CON 509 (J1939/1587 D.L.)
– CON 032 (RS232/485 D.L.)
– SUB 141 (Lt Orange) (Implement Control Circuit)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– CON 141 (CAN “C” D.L.)
– CON 305 (CAN “D” D.L.)
– SUB 522 (Lt Purple) (GPS CAN D.L.)
– SUB 577 (Lt Green) (Grade Control CAN 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) (Machine Control Circuit)
– 509 (Lt Pink) (Engine Control)
– 613 (Dk Yellow) (Heat/AC)
– CON 509 (J1939/1587 D.L.)
– CON 032 (RS232/485 D.L.)
– SUB 141 (Lt Orange) (Implement Control Circuit)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– CON 141 (CAN “C” D.L.)
– CON 305 (CAN “D” D.L.)
– SUB 577 (Lt Green) (Grade Control CAN D.L.)
– CON 5767 (Olive Green) (DEF)
– SUB 651 (Blue Gray) (Ethernet)
– Vol 3 – Engine and PETU
– Black (Ground)
– 640 (Blue) (Key Power)
– 509 (Lt Pink) (Engine Control)
– CON 190 (CAN “A” D.L.)
– CON 5767 (Olive Green) (DEF)
– Machine Views
– Vol 1 – Cab
– Cab – Dashboard
– Cab Front
– Cab – Headliner
– Cab – Left
– Cab – Rear
– Cab – Right
– Condenser
– Fuse Panel
– Washer Pump
– Vol 2 – Chassis Wiring
– Battery Compartment
– Chassis – Left Fender
– Chassis – Right Fender
– Engine – Left
– Engine – Top
– Grade Control
– Implement Valve
– Machine – Rear
– Pump
– Radiator
– Transmission
– Vol 3 – Engine and PETU
– CEM
– Engine Left Side
– Engine Right Side
– Engine Top
– PETU
Schematic Caterpillar D6 Track-Type Tractor Cooling System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Schematic
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– 021 (Orange) (Cooling Loop 1 Circuit)
– 258 (Dk Purple) (Shunt Line)
– 347 (Dk Green) (Supply Line)
– 577 (Lt Green) (Drain / Return Line)
– 640 (Blue) (Cooling Loop 2 Circuit)
– Machine Views
– Cab – Top View
– Engine – Right Side View
– Machine – Left side View
Specifications D6 Track Type Tractor Machine Systems
– Access Door – Monitor
– Access Door – Monitor Mounting
– Access Door – Monitor Mounting
– Access Door – Monitor Mounting
– Accumulator
– Accumulator
– Accumulator
– Accumulator (Brake)
– Accumulator (Pilot)
– Accumulator – Uncharged
– Air Cleaner
– Air Conditioner Group
– Air Conditioner Lines
– Air Precleaner
– Air Precleaner
– Air Precleaner
– Angle Cylinder (Bulldozer)
– Angle Cylinder (Bulldozer)
– Angle Cylinder (Bulldozer)
– Bottom Guard
– Bottom Guard
– Brake and Planetary
– Bulldozer Blade – Angle Blade and Edge Group
– Bulldozer Blade – Cutting Edges and End Bits
– Bulldozer Mounting – Mounting Group
– Bulldozer Trunnion
– Bulldozer Trunnion
– C-Frame
– Cab – Cover Gp
– Cab Air Filter – Filter
– Cab Door
– Cab Liner
– Case and Frame
– Case and Frame
– Check Valve
– Communication Electronic Control Module (Product Link)
– Control Valve (Brake)
– Counterweight Group
– Cutting Edges and End Bits
– Differential and Bevel Gear
– Differential Drive and Brake Group
– Drawbar
– Drive Shaft
– Dust Ejector
– Electronic Control and Mounting
– Equalizer Bar
– Equalizer Bar
– Equalizer Bar
– Fast Fill Fuel Adapter
– Fender
– Fender
– Final Drive
– Final Drive
– Final Drive
– Final Drive Mounting
– Final Drive Mounting
– Flood Lamp
– Flood Lamp
– Flood Lighting
– Fuel Tank
– Gear Pump (Power Train)
– Gear Pump (Power Train)
– Governor and Brake Control
– Governor and Brake Control
– Heater Lines
– Heater Lines
– Hydraulic Oil Cooler
– Idlers (Track)
– Idlers (Track)
– Idlers (Track)
– Idlers (Track)
– Joystick Control (Winch)
– Joystick Control Mounting
– Joystick Control Mounting
– Ladder
– Ladder
– Lift Cylinder (Bulldozer)
– Lift Cylinder (Bulldozer)
– Lines (Hydraulic Fan)
– Lines (Lift Cylinder)
– Lines (Lift Cylinder)
– Lines (Tilt Cylinder)
– Lines (Tilt Cylinder)
– Oil Filter (Hydraulic)
– Oil Filter (Power Train)
– Pilot Lines
– Piston Motor (Steering)
– Piston Pump (Hydraulic Fan)
– Piston Pump (Implement)
– Piston Pump (Implement)
– Piston Pump (Steering)
– Pivot Bar
– Pivot Shaft
– Planetary Case and Parts
– Position Sensor (Decelerator)
– Position Sensor (Steering)
– Position Sensor (Steering)
– Power Train Oil Lines
– Pressure Control Valve
– Pump Control Valve (Pressure and Flow Compensator)
– Pump Lines
– Push Arm
– Quick-Drop Valve
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Condenser and Mounting
– Relief Valve (Main)
– Ripper
– Ripper Control
– Ripper Lift Cylinder
– Ripper Mounting
– Roller Frame Mounting
– Solenoid Valve
– Solenoid Valve (Hydraulic Lockout)
– Solenoid Valve (Steering Clutch, Brake)
– Speed Sensor
– Speed Sensor (Transmission Output)
– Sprocket Segment
– Steering and Transmission Control Group
– Striker Bar
– Striker Bar
– Suction Fan
– Sweep Group
– Tilt Cylinder (Bulldozer)
– Tilt Cylinder (Bulldozer)
– Toggle Switch (Ground Level Shutdown)
– Torque Converter – Mounting Gp
– Torque Converter – Mounting Gp
– Track Carrier Roller
– Track Roller (Double Flange)
– Track Roller (Double Flange)
– Track Roller (Double Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller Frames
– Tracks – HDXL
– Tracks – System One
– Tracks – System One
– Transmission
– Transmission Guard
– Transmission Mounting
– Transmission Mounting
– Transmission Oil Filter
– Winch Mounting
– Window Washer
– Window Wiper – Group
Systems Operation & Testing and Adjusting D6 Track-Type Tractor Systems
– Accumulator (Pilot)
– Accumulator (Pilot) – Test and Charge
– Accumulator (Power Train)
– Accumulator (Power Train) – Test and Charge
– Additional Electrical Components
– Brake Pressure – Test
– Brake System
– Calibration Error Codes
– Calibrations (Cat ET)
– Control Valve (Implement)
– Electronic Control (Fan Hydraulic System)
– Electronic Control (HVAC System)
– Electronic Control (Hydraulic System)
– Electronic Control (Power Train System)
– Electronic Control (Steering System)
– Equalizer Bar
– Final Drive
– Flywheel Lubrication Oil Pressure – Test
– General Information (Cooling System)
– General Information (Fan Hydraulic System)
– General Information (HVAC System)
– General Information (Hydraulic System)
– General Information (Power Train System)
– General Information (Steering System)
– General Information (Undercarriage)
– Graphic Color Codes
– HVAC System
– Hydraulic Fan Speed (On Demand) – Test and Adjust
– Hydraulic Oil Cooler and Bypass
– Hydraulic Oil Cooling System
– Hydraulic Tank and Screen
– Location of Components (Cooling System)
– Location of Components (Fan Hydraulic System)
– Location of Components (HVAC System)
– Location of Components (Hydraulic System)
– Location of Components (Power Train System)
– Location of Components (Steering System)
– Location of Components (Undercarriage)
– Machine Preparation
– Modes of Operation (Fan Hydraulic System)
– Oil Cooler (Power Train)
– Oil Filter (Power Train)
– Operational Checks
– Piston Motor (Fan Drive)
– Piston Motor (Steering)
– Piston Pump (Fan Drive)
– Piston Pump (Implement)
– Piston Pump (Implement) – Test and Adjust
– Piston Pump (Steering)
– Piston Pump (Steering) – Test and Adjust
– Pivot Shaft
– Power Train Oil Cooling System
– Power Train Oil Pump
– Quick-Drop Valve – If Equipped
– Relief Valve (Torque Converter Inlet) – Lubrication
– Relief Valve (Torque Converter Inlet) Pressure – Test
– Relief Valve (Torque Converter Outlet)
– Relief Valve (Torque Converter Outlet) Pressure – Test and
– Relief Valve (Transmission) – Test and Adjust
– Steering Differential and Brake
– Suction Screen
– System Pressure – Release
– Torque Converter (Lockup)
– Torque Converter Lockup Clutch Pressure – Test
– Track Carrier Roller
– Track Idler
– Track Roller
– Track Roller Frame
– Tracks
– Transfer and Bevel Gears
– Transmission
– Transmission Clutch Pressure – Test
– Transmission Hydraulic Control
– Transmission Lubrication
– Transmission Lubrication Oil Pressure – Test
Systems Operation & Testing and Adjusting D6 Track-Type Tractor Systems
– Accumulator (Pilot)
– Accumulator (Pilot) – Test and Charge
– Accumulator (Power Train)
– Accumulator (Power Train) – Test and Charge
– Additional Electrical Components
– AutoCarry System
– Blade Load Monitor System
– Brake Pressure – Test
– Brake System
– Calibration Error Codes
– Calibrations (Cat ET)
– Control Valve (Implement)
– Electronic Control (Fan Hydraulic System)
– Electronic Control (HVAC System)
– Electronic Control (Hydraulic System)
– Electronic Control (Operator Assist System)
– Electronic Control (Power Train System)
– Electronic Control (Steering System)
– Equalizer Bar
– Flywheel Lubrication Oil Pressure – Test
– General Information (Cooling System)
– General Information (Fan Hydraulic System)
– General Information (HVAC System)
– General Information (Hydraulic System)
– General Information (Operator Assist System)
– General Information (Power Train System)
– General Information (Steering System)
– General Information (Undercarriage)
– Graphic Color Codes
– HVAC System
– Hydraulic Fan Speed (On Demand) – Test and Adjust
– Hydraulic Oil Cooler and Bypass
– Hydraulic Oil Cooling System
– Hydraulic Tank and Screen
– Location of Components (Cooling System)
– Location of Components (Fan Hydraulic System)
– Location of Components (HVAC System)
– Location of Components (Hydraulic System)
– Location of Components (Power Train System)
– Location of Components (Steering System)
– Location of Components (Undercarriage)
– Machine Preparation
– Modes of Operation (Fan Hydraulic System)
– Oil Cooler (Power Train)
– Oil Filter (Power Train)
– Operational Checks
– Piston Motor (Fan Drive)
– Piston Motor (Steering)
– Piston Pump (Fan Drive)
– Piston Pump (Implement)
– Piston Pump (Implement) – Test and Adjust
– Piston Pump (Steering)
– Piston Pump (Steering) – Test and Adjust
– Pivot Shaft
– Power Train Oil Pump
– Quick-Drop Valve – If Equipped
– Relief Valve (Torque Converter Inlet) – Lubrication
– Relief Valve (Torque Converter Inlet) Pressure – Test
– Relief Valve (Torque Converter Outlet)
– Relief Valve (Torque Converter Outlet) Pressure – Test and
– Relief Valve (Transmission) – Test and Adjust
– Slope Assist System
– Stable Blade System
– Steering Differential and Brake
– Suction Screen
– System Pressure – Release
– Torque Converter (Lockup)
– Torque Converter Lockup Clutch Pressure – Test
– Track Carrier Roller
– Track Idler
– Track Roller
– Track Roller Frame
– Tracks
– Traction Control System
– Transfer and Bevel Gears
– Transmission
– Transmission Clutch Pressure – Test
– Transmission Hydraulic Control
– Transmission Lubrication
– Transmission Lubrication Oil Pressure – Test
Troubleshooting C9.3B Aftertreatment Systems
– Aftertreatment Cooling Fan – Test
– Aftertreatment Identification Module – Test
– ARD Combustion Air – Test
– ARD Combustion Air Valve – Replace
– ARD Combustion Supply Air Pressure Is Low
– ARD Failed to Ignite
– ARD Fuel Pressure Is High
– ARD Fuel Pressure Is Low
– ARD Fuel Supply – Test
– ARD Ignition – Test
– ARD Is Disabled
– ARD Loss of Combustion
– ARD Nozzle Heater – Test
– ARD Temperature Is Low
– Cat ET Service Error Identifiers
– Cat ET Service Features
– Clean Emissions Module Has High Oxygen Level
– Codes that Inhibit Operation of Aftertreatment System
– Customer Passwords
– DEF Does Not Purge
– DEF Module Does Not Respond
– DEF Pressure Is High
– DEF Pressure Is Low
– DEF Pump – Replace
– DEF Pump Motor – Test
– DEF Tank Level Is Low
– DEF Tank Temperature Is High
– DEF Temperature Is Low
– Desulfation Is Frequent
– Diagnostic Trouble Codes
– Diesel Oxidation Catalyst Temperature Is Low
– Diesel Particulate Filter Collects Excessive Soot
– Diesel Particulate Filter Collects Excessive Soot – Without ARD
– Diesel Particulate Filter Has Changed Regeneration Interval
– Diesel Particulate Filter Has High Ash Load
– Diesel Particulate Filter Has High Inlet Pressure
– Diesel Particulate Filter Has Low Inlet Pressure
– Diesel Particulate Filter Temperature Is High
– Diesel Particulate Filter Temperature Is Low – If Equipped
– Diesel Particulate Filter Temperature Is Low – Without ARD
– ECM Will Not Accept Factory Passwords
– Electrical Connectors
– Electrical Connectors – Inspect
– Electronic Service Tool Does Not Communicate
– Electronic Service Tools
– Event Codes
– Exhaust Has Excessive Black Smoke
– Exhaust System Contains Fuel
– Factory Passwords
– General Information
– NOx Conversion Is Low
– NOx Sensor – Test
– NOx Sensor Supply – Test
– SCR Catalyst Inlet Temperature Sensor – Test
– SCR Catalyst Sulfation Is Excessive
– SCR Inducement Emergency Override
– SCR Warning System Problem
– Sensor (Data Link Type) – Test
– Sensor Calibration Required – Test – Aftertreatment
– Sensor Signal (Analog, Active) – Test – Aftertreatment
– Sensor Supply – Test
– Service Information Report
– Solenoid Valve – Test – Aftertreatment
– Test ECM Mode
– Welding Precaution
Troubleshooting C9.3B Engine
– Acceleration Is Poor or Throttle Response Is Poor
– Air Shutoff – Test
– Alternator Problem – Charging Problem and/or Noisy
– Battery Problem
– Cat ET Service Error Identifiers
– Cat ET Service Features
– Configuration Parameters
– Coolant Contains Fuel
– Coolant Contains Oil
– Coolant Level Is Low
– Coolant Pressure Is Low
– Coolant Temperature Is High
– Coolant Temperature Is Low
– Cooling Fan – Calibrate
– Cooling Fan Control – Test
– Cooling Fan Is Always ON
– Cooling Fan Reversing – Test
– Cooling Fan Speed – Test
– Crankcase Fumes Disposal Tube Has Oil Draining
– Crankcase Pressure Is High
– Crankcase Pressure Is Low
– Customer Passwords
– Cylinder Is Noisy
– Data Link – Test
– Data Link Configuration Status – Test
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– 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 Shutdown While Idling
– Engine Stalls at Low RPM
– Engine Throttle Valve – Test
– Engine Top Speed Is Not Obtained
– Engine Vibration Is Excessive
– Ether Starting Aid – Test
– Event Codes
– Exhaust Has Excessive White Smoke
– Exhaust System Contains Coolant
– Exhaust System Contains Oil
– Exhaust Temperature Is High
– Factory Passwords
– Fuel Consumption Is Excessive
– Fuel Filter Is Restricted
– Fuel Injection Pump – Test
– Fuel Pressure Is High
– Fuel Pressure Is Low
– Fuel Rail Pressure Problem
– Fuel System Water Separator Has Water
– Fuel Temperature Is High
– General Information
– Idle Speed Is High
– Injector Code – Calibrate
– 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
– Intake Manifold Air Temperature Is Low
– Oil Consumption Is Excessive
– Oil Contains Coolant
– Oil Contains Fuel
– Oil Pressure Is Low
– Oil Temperature Is High
– Power Is Intermittently Low or Power Cutout Is Intermittent
– Sensor Calibration Required – Test – Engine
– Sensor Signal (Analog, Active) – Test – Engine
– Sensor Signal (Analog, Passive) – Test – Engine
– Sensor Supply – Test
– Service Information Report
– Shutdown (Ground Level) – Test
– Solenoid Valve – Test – Engine
– Speed Control – Test
– Speed/Timing – Test
– Switch Circuits – Test – Air Filter Restriction Switch
– Test ECM Mode
– Timing – Calibrate
– Valve Lash Is Excessive
– Valve Rotator or Spring Lock Is Free
– Water in Fuel – Test
– Welding Precaution
Troubleshooting D6 Track-Type Tractor Electrohydraulic Systems
– Alarm – Test
– Brake Does Not Engage
– Brake Does Not Release
– CAN Data Link – Test
– Charging System – Test
– Connector Locations
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– ECM – Configure
– ECM – Replace
– ECM Location Code – Test
– ECM Software – Install
– Electrical Connector – Inspect
– Electrical Power Supply – Test
– Emerging Symptom Information
– Ethernet Data Link – Test
– Event Codes
– Fuel Tank Overfills (Fast Fill Fuel)
– Fuel Tank Underfills (Fast Fill Fuel)
– Fueling Nozzle Leaks (Fast Fill Fuel)
– Fueling Nozzle Shuts Off Prematurely (Fast Fill Fuel)
– G6:M6 GPS Receiver – Enable
– G6:M6 GPS Receiver Communication – Check
– General Information
– HVAC, Air Conditioning System
– HVAC, Automatic Temperature Control System
– HVAC, Condensate Drainage System
– HVAC, Control System
– HVAC, General Troubleshooting
– HVAC, Heating System
– HVAC, Required Tools
– HVAC, Visual Inspection
– Hydraulic System Oil Contains Air
– Hydraulic System Oil Level Is Low
– Hydraulic System Oil Temperature Is High
– Implement System
– Machine Movement
– Machine Preparation for Troubleshooting
– Operator Assist System
– Operator Control Switch (Switch to Battery) – Test
– Operator Control Switch (Switch to Ground) – Test
– Parameter – Test
– Power Train Oil Contains Air
– Power Train Oil Temperature Is High
– Power Train System Pressure Is Low
– Relay – Test
– ROPS Flood Lamps Do Not Activate
– Sensor (Data Link Type) – Test
– Sensor Signal (Analog, Active) – Test
– Sensor Signal (Analog, Passive) – Test
– Sensor Signal (PWM) – Test
– Sensor Supply – Test
– Service Tools
– Solenoid Valve (Switch Controlled) – Test
– Solenoid Valve – Test
– Solenoid Valve – Test
– Speed Sensor – Test
– Starting System – Test
– Steering System
– Switch Circuits – Test
– Symptom Troubleshooting
– System Snapshot – Take/Download
– Transmission
– Transmission Clutch
– Transmission Clutch
– Visual Inspection
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test