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
Disassembly and Assembly 320D2 Excavator Engine Supplement
– Aftercooler – Remove and Install
– Aftercooler – Remove and Install
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Air Cleaner – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Alternator – Remove and Install
– Alternator – Remove and Install
– Battery – Remove and Install
– Battery – Remove and Install
– Battery – Remove and Install
– Coolant Tank (Expansion) – Remove and Install
– Coolant Tank (Expansion) – Remove and Install
– Coolant Tank (Expansion) – Remove and Install
– Crankshaft Front Seal – Remove and Install
– Crankshaft Front Seal – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Engine – Remove and Install
– Engine – Remove and Install
– Engine – Remove and Install
– Engine Front Mount – Install
– Engine Front Mount – Install
– Engine Front Mount – Install
– Engine Front Mount – Remove
– Engine Front Mount – Remove
– Engine Front Mount – Remove
– Engine Oil Cooler – Remove and Install
– Engine Oil Cooler – Remove and Install
– Engine Oil Cooler – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Pump – Remove and Install
– Engine Oil Pump – Remove and Install
– Engine Oil Pump – Remove and Install
– Engine Rear Mount – Install
– Engine Rear Mount – Install
– Engine Rear Mount – Install
– Engine Rear Mount – Remove
– Engine Rear Mount – Remove
– Engine Rear Mount – Remove
– Exhaust Manifold – Remove and Install
– Exhaust Manifold – Remove and Install
– Fan – Remove and Install
– Fan – Remove and Install
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Fan Drive – Remove and Install
– Fan Drive – Remove and Install
– Fan Guard – Remove and Install
– Fan Guard – Remove and Install
– Fan Guard – Remove and Install
– Flywheel – Remove and Install
– Flywheel – Remove and Install
– Flywheel – Remove and Install
– Fuel Priming Pump and Fuel Filter Base – Remove and Install
– Fuel Priming Pump and Fuel Filter Base – Remove and Install
– Fuel Priming Pump and Fuel Filter Base – Remove and Install
– Muffler – Remove and Install
– Muffler – Remove and Install
– Muffler – Remove and Install
– Oil Pan – Remove and Install
– Oil Pan – Remove and Install
– Oil Pan – Remove and Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Remove
– Radiator and Hydraulic Oil Cooler – Remove
– Radiator and Hydraulic Oil Cooler – Remove
– Refrigerant Compressor – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– System Pressure – Release
– System Pressure – Release
– System Pressure – Release
– Water Pump – Remove and Install
– Water Pump – Remove and Install
– Water Pump – Remove and Install
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Temperature Regulator – Remove and Install
– Water Temperature Regulator – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 320D2 Excavator Machine Systems
– Accumulator – Remove and Install
– Actuator Motor (Air Distributor) – Remove and Install
– Auxiliary Pilot Valve (Straight Travel) – Assemble
– Auxiliary Pilot Valve (Straight Travel) – Disassemble
– Auxiliary Pilot Valve (Straight Travel) – Disassemble
– Auxiliary Pilot Valve (Straight Travel) – Install
– Auxiliary Pilot Valve (Straight Travel) – Remove
– Blower Motor (Air Conditioner, Heater) – Remove and Install
– Boom – Install
– Boom – Remove
– Boom Bearings and Seals – Remove and Install
– Boom Bearings and Seals – Remove and Install
– Boom Cylinder – Remove and Install
– Boom Lighting – Remove and Install
– Bucket – Remove and Install
– Bucket Cylinder – Remove and Install
– Bucket Linkage – Remove and Install
– Bucket Linkage Bearings and Seals – Install
– Bucket Linkage Bearings and Seals – Remove
– Cab – Install
– Cab – Install
– Cab – Remove
– Cab – Remove
– Check Valve (Cooler Bypass) – Assemble
– Check Valve (Cooler Bypass) – Disassemble
– Check Valve (Cooler Bypass) – Install
– Check Valve (Cooler Bypass) – Install
– Check Valve (Cooler Bypass) – Remove
– Check Valve (Cooler Bypass) – Remove
– Control Manifold (Pilot Oil) – Assemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Disassemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Install
– Control Manifold (Pilot Oil) – Remove
– Control Module (Automatic Temperature Control Unit) –
– Control Module (Automatic Temperature Control Unit) –
– Counterbalance Valve (Travel) – Assemble
– Counterbalance Valve (Travel) – Disassemble
– Counterbalance Valve (Travel) – Disassemble
– Counterbalance Valve (Travel) – Install
– Counterbalance Valve (Travel) – Install
– Counterbalance Valve (Travel) – Remove
– Counterbalance Valve (Travel) – Remove
– Counterweight – Remove and Install
– Counterweight – Remove and Install
– Duo-Cone Conventional Seals – Install
– Evaporator Coil – Install
– Evaporator Coil – Remove
– Final Drive – Assemble
– Final Drive – Assemble
– Final Drive – Assemble
– Final Drive – Assemble
– Final Drive – Disassemble
– Final Drive – Disassemble
– Final Drive – Disassemble
– Final Drive – Disassemble
– Final Drive – Install
– Final Drive – Install
– Final Drive – Remove
– Front Idler and Recoil Spring – Install
– Front Idler and Recoil Spring – Remove
– Fuel Tank – Install
– Fuel Tank – Remove
– Gear Pump (Pilot) – Assemble
– Gear Pump (Pilot) – Disassemble
– Gear Pump (Pilot) – Install
– Gear Pump (Pilot) – Remove
– Heater Core – Install
– Heater Core – Remove
– Heating and Air Conditioning Unit – Install
– Heating and Air Conditioning Unit – Install
– Heating and Air Conditioning Unit – Remove
– Heating and Air Conditioning Unit – Remove
– Hydraulic Lockout Control – Assemble
– Hydraulic Lockout Control – Disassemble
– Hydraulic Lockout Control – Install
– Hydraulic Lockout Control – Remove
– Hydraulic Tank – Install
– Hydraulic Tank – Remove
– Hydraulic Track Adjusters – Assemble
– Hydraulic Track Adjusters – Disassemble
– Hydraulic Track Adjusters – Disassemble
– Load Control Valve (Boom Cylinder) – Assemble
– Load Control Valve (Boom Cylinder) – Disassemble
– Load Control Valve (Boom Cylinder) – Install
– Load Control Valve (Boom Cylinder) – Remove
– Load Control Valve (Stick Cylinder) – Assemble
– Load Control Valve (Stick Cylinder) – Disassemble
– Load Control Valve (Stick Cylinder) – Install
– Load Control Valve (Stick Cylinder) – Remove
– Main Control Valve – Assemble
– Main Control Valve – Disassemble
– Main Control Valve – Install
– Main Control Valve – Install
– Main Control Valve – Remove
– Main Control Valve – Remove
– Main Hydraulic Pump – Assemble
– Main Hydraulic Pump – Disassemble
– Main Hydraulic Pump – Install
– Main Hydraulic Pump – Remove
– Oil Filter (Hydraulic, Return) – Install
– Oil Filter (Hydraulic, Return) – Install
– Oil Filter (Hydraulic, Return) – Remove
– Oil Filter (Hydraulic, Return) – Remove
– Operator Console – Remove and Install
– Operator Console – Remove and Install
– Pilot Valve (Joystick) – Assemble
– Pilot Valve (Joystick) – Assemble
– Pilot Valve (Joystick) – Disassemble
– Pilot Valve (Joystick) – Install
– Pilot Valve (Joystick) – Remove
– Pilot Valve (Joystick) – Remove
– Pilot Valve (Travel) – Assemble
– Pilot Valve (Travel) – Disassemble
– Pilot Valve (Travel) – Install
– Pilot Valve (Travel) – Remove
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pump Drive Coupling – Remove and Install
– Recoil Spring – Assemble
– Recoil Spring – Disassemble
– Refrigerant Receiver-Dryer – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Refueling Pump – Install
– Refueling Pump – Remove
– Relief Valve (Pilot) – Install
– Relief Valve (Pilot) – Remove
– Seat – Remove and Install
– Seat Support – Remove and Install
– Seat Suspension – Remove and Install
– Selector Valve (Alternate Pattern Control) – Assemble
– Selector Valve (Alternate Pattern Control) – Disassemble
– Selector Valve (Alternate Pattern Control) – Install
– Selector Valve (Alternate Pattern Control) – Remove
– Sprocket – Remove and Install
– Stick – Install
– Stick – Remove
– Stick Bearings and Seals – Install
– Stick Bearings and Seals – Install
– Stick Bearings and Seals – Remove
– Stick Bearings and Seals – Remove
– Stick Cylinder – Remove and Install
– Stick Cylinder – Remove and Install
– Storage Box and Covers (Cab) – Remove and Install
– Swing Cushion Valve – Assemble – Fine Swing Solenoid
– Swing Cushion Valve – Assemble – Fine Swing Solenoid
– Swing Cushion Valve – Disassemble – Fine Swing Solenoid
– Swing Cushion Valve – Install
– Swing Cushion Valve – Remove
– Swing Drive – Assemble
– Swing Drive – Assemble
– Swing Drive – Assemble
– Swing Drive – Disassemble
– Swing Drive – Disassemble
– Swing Drive – Disassemble
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Remove
– Swing Motor – Assemble
– Swing Motor – Assemble
– Swing Motor – Disassemble
– Swing Motor – Disassemble
– Swing Motor – Install
– Swing Motor – Install
– Swing Motor – Remove
– Swing Motor – Remove
– Swing Motor and Swing Drive – Install
– Swing Motor and Swing Drive – Remove
– Swivel – Assemble
– Swivel – Disassemble
– Swivel – Disassemble
– Swivel – Install
– Swivel – Remove
– System Pressure – Release
– System Pressure – Release
– System Pressure – Release
– Track – Connect
– Track – Connect – Press Fit Master Pin
– Track – Separate
– Track – Separate – Press Fit Master Pin
– Track Carrier Roller – Install
– Track Carrier Roller – Install
– Track Carrier Roller – Remove
– Track Carrier Roller – Remove
– Track Roller – Install
– Track Roller – Install
– Track Roller – Remove
– Track Roller – Remove
– Travel Motor – Assemble
– Travel Motor – Assemble
– Travel Motor – Assemble
– Travel Motor – Disassemble
– Travel Motor – Disassemble
– Travel Motor – Disassemble
– Travel Motor – Install
– Travel Motor – Install
– Travel Motor – Remove
– Travel Motor – Remove
– Upper Frame and Undercarriage Frame – Connect
– Upper Frame and Undercarriage Frame – Connect
– Upper Frame and Undercarriage Frame – Connect
– Upper Frame and Undercarriage Frame – Separate
– Upper Frame and Undercarriage Frame – Separate
– Upper Frame and Undercarriage Frame – Separate
– Window Wiper Motor – Remove and Install – Lower
– Window Wiper Motor – Remove and Install – Upper
Disassembly and Assembly 323D2 Excavator C7.1 Engine Supplement
– Aftercooler – Remove and Install
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Alternator – Remove and Install
– Battery – Remove and Install
– Battery – Remove and Install
– Coolant Tank (Expansion) – Remove and Install
– Coolant Tank (Expansion) – Remove and Install
– Crankshaft Front Seal – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Crankshaft Vibration Damper and Pulley – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Electric Starting Motor – Remove and Install
– Engine – Remove and Install
– Engine – Remove and Install
– Engine Front Mount – Install
– Engine Front Mount – Install
– Engine Front Mount – Remove
– Engine Front Mount – Remove
– Engine Oil Cooler – Remove and Install
– Engine Oil Cooler – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Oil Pump – Remove and Install
– Engine Oil Pump – Remove and Install
– Engine Rear Mount – Install
– Engine Rear Mount – Install
– Engine Rear Mount – Remove
– Engine Rear Mount – Remove
– Exhaust Manifold – Remove and Install
– Exhaust Manifold – Remove and Install
– Fan – Remove and Install
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Fan Drive – Remove and Install
– Fan Guard – Remove and Install
– Fan Guard – Remove and Install
– Flywheel – Remove and Install
– Flywheel – Remove and Install
– Fuel Priming Pump and Fuel Filter Base – Remove and Install
– Fuel Priming Pump and Fuel Filter Base – Remove and Install
– Hood – Remove and Install
– Muffler – Remove and Install
– Muffler – Remove and Install
– Oil Pan – Remove and Install
– Oil Pan – Remove and Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Remove
– Radiator and Hydraulic Oil Cooler – Remove
– Refrigerant Compressor – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– System Pressure – Release
– System Pressure – Release
– Water Pump – Remove and Install
– Water Pump – Remove and Install
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Temperature Regulator – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 323D2 Excavator Machine Systems
– Accumulator – Remove and Install
– Actuator Motor (Air Distributor) – Remove and Install
– Auxiliary Pilot Valve (Straight Travel) – Assemble
– Auxiliary Pilot Valve (Straight Travel) – Disassemble
– Auxiliary Pilot Valve (Straight Travel) – Install
– Auxiliary Pilot Valve (Straight Travel) – Remove
– Blower Motor (Air Conditioner, Heater) – Remove and Install
– Boom – Install
– Boom – Remove
– Boom Bearings and Seals – Remove and Install
– Boom Cylinder – Remove and Install
– Boom Lighting – Remove and Install
– Bucket – Remove and Install
– Bucket Cylinder – Remove and Install
– Bucket Linkage – Remove and Install
– Bucket Linkage Bearings and Seals – Install
– Bucket Linkage Bearings and Seals – Remove
– Cab – Install
– Cab – Install
– Cab – Remove
– Cab – Remove
– Check Valve (Cooler Bypass) – Remove and Install
– Control Manifold (Pilot Oil) – Assemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Disassemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Install
– Control Manifold (Pilot Oil) – Remove
– Control Module (Automatic Temperature Control Unit) –
– Counterbalance Valve (Travel) – Assemble
– Counterbalance Valve (Travel) – Disassemble
– Counterbalance Valve (Travel) – Install
– Counterbalance Valve (Travel) – Remove
– Counterweight – Remove and Install
– Duo-Cone Conventional Seals – Install
– Evaporator Coil – Install
– Evaporator Coil – Remove
– Final Drive – Assemble
– Final Drive – Assemble
– Final Drive – Disassemble
– Final Drive – Disassemble
– Final Drive – Install
– Final Drive – Remove
– Front Idler and Recoil Spring – Install
– Front Idler and Recoil Spring – Remove
– Fuel Tank – Install
– Fuel Tank – Remove
– Gear Pump (Pilot) – Assemble
– Gear Pump (Pilot) – Disassemble
– Gear Pump (Pilot) – Install
– Gear Pump (Pilot) – Remove
– Heater Core – Install
– Heater Core – Remove
– Heating and Air Conditioning Unit – Install
– Heating and Air Conditioning Unit – Remove
– Hydraulic Lockout Control – Assemble
– Hydraulic Lockout Control – Disassemble
– Hydraulic Lockout Control – Install
– Hydraulic Lockout Control – Remove
– Hydraulic Tank – Install
– Hydraulic Tank – Remove
– Hydraulic Track Adjusters – Assemble
– Hydraulic Track Adjusters – Disassemble
– Hydraulic Track Adjusters – Install
– Hydraulic Track Adjusters – Remove
– Load Control Valve (Boom Cylinder) – Assemble
– Load Control Valve (Boom Cylinder) – Disassemble
– Load Control Valve (Boom Cylinder) – Install
– Load Control Valve (Boom Cylinder) – Remove
– Load Control Valve (Stick Cylinder) – Assemble
– Load Control Valve (Stick Cylinder) – Disassemble
– Load Control Valve (Stick Cylinder) – Install
– Load Control Valve (Stick Cylinder) – Remove
– Main Control Valve – Assemble
– Main Control Valve – Disassemble
– Main Control Valve – Install
– Main Control Valve – Remove
– Main Hydraulic Pump – Assemble
– Main Hydraulic Pump – Disassemble
– Main Hydraulic Pump – Install
– Main Hydraulic Pump – Remove
– Oil Filter (Hydraulic, Return) – Install
– Oil Filter (Hydraulic, Return) – Remove
– Operator Console – Remove and Install
– Pilot Valve (Joystick) – Assemble
– Pilot Valve (Joystick) – Disassemble
– Pilot Valve (Joystick) – Install
– Pilot Valve (Joystick) – Remove
– Pilot Valve (Travel) – Assemble
– Pilot Valve (Travel) – Disassemble
– Pilot Valve (Travel) – Install
– Pilot Valve (Travel) – Remove
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pump Coupling
– Recoil Spring – Assemble
– Recoil Spring – Disassemble
– Refrigerant Receiver-Dryer – Remove and Install
– Refueling Pump – Install
– Refueling Pump – Remove
– Relief Valve (Pilot) – Install
– Relief Valve (Pilot) – Remove
– Seat – Remove and Install
– Seat Support – Remove and Install
– Seat Suspension – Remove and Install
– Selector Valve (Alternate Pattern Control) – Assemble
– Selector Valve (Alternate Pattern Control) – Disassemble
– Selector Valve (Alternate Pattern Control) – Install
– Selector Valve (Alternate Pattern Control) – Remove
– Sprocket – Remove and Install
– Stick – Install
– Stick – Remove
– Stick Bearings and Seals – Install
– Stick Bearings and Seals – Remove
– Stick Cylinder – Remove and Install
– Storage Box and Covers (Cab) – Remove and Install
– Swing Cushion Valve – Assemble – Fine Swing Solenoid
– Swing Cushion Valve – Disassemble – Fine Swing Solenoid
– Swing Cushion Valve – Install
– Swing Cushion Valve – Remove
– Swing Drive – Assemble
– Swing Drive – Disassemble
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Remove
– Swing Motor – Assemble
– Swing Motor – Disassemble
– Swing Motor – Install
– Swing Motor – Remove
– Swing Motor and Swing Drive – Install
– Swing Motor and Swing Drive – Remove
– Swivel – Assemble
– Swivel – Disassemble
– Swivel – Install
– Swivel – Remove
– System Pressure – Release
– System Pressure – Release
– Track – Connect
– Track – Separate
– Track Carrier Roller – Install
– Track Carrier Roller – Remove
– Track Roller – Install
– Track Roller – Remove
– Travel Motor – Assemble
– Travel Motor – Disassemble
– Travel Motor – Install
– Travel Motor – Remove
– Upper Frame and Undercarriage Frame – Connect
– Upper Frame and Undercarriage Frame – Separate
– Window Wiper Motor – Remove and Install – Upper
Disassembly and Assembly C7.1 (Mech) Engines for Caterpillar Built Machines
– Accessory Drive – Remove and Install – Accessory Drive SAE
– Air Compressor – Remove and Install
– Alternator – Install
– Alternator – Remove
– Bearing Clearance – Check
– Camshaft – Remove and Install
– Camshaft Bearings – Remove and Install
– Camshaft Gear – Remove and Install
– Connecting Rod Bearings – Install – Connecting Rods in
– Connecting Rod Bearings – Remove – Connecting Rods in
– Crankcase Breather – Install – Filtered Breather
– Crankcase Breather – Install – Unfiltered Breather
– Crankcase Breather – Remove – Filtered Breather
– Crankcase Breather – Remove – Unfiltered Breather
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Remove and Install
– Crankshaft Gear – Remove and Install
– Crankshaft Main Bearings – Remove and Install – Crankshaft
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Cylinder Head – Install
– Cylinder Head – Remove
– Electric Starting Motor – Remove and Install
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine Oil Filter Base – Remove and Install
– Engine Oil Pan – Install – Aluminum Oil Pan
– Engine Oil Pan – Install – Cast Iron Oil Pan
– Engine Oil Pan – Remove – Aluminum Oil Pan
– Engine Oil Pan – Remove – Cast Iron Oil Pan
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Exhaust Elbow – Remove and Install
– Exhaust Manifold – Remove and Install – Side Mounted
– Exhaust Manifold – Remove and Install – Top Mounted Exhaust
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Flywheel – Install
– Flywheel – Remove
– Flywheel Housing – Remove and Install – Standard Housing
– Front Cover – Remove and Install
– Fuel Filter Base – Remove and Install – Secondary Fuel Filter
– Fuel Injection Lines – Install
– Fuel Injection Lines – Remove
– Fuel Injection Pump – Install – With Boost Control
– Fuel Injection Pump – Install – With Electronic Governor
– Fuel Injection Pump – Remove – With Boost Control
– Fuel Injection Pump – Remove – With Electronic Governor
– Fuel Injection Pump Gear – Install
– Fuel Injection Pump Gear – Remove
– Fuel Injector – Install
– Fuel Injector – Remove
– Fuel Priming Pump – Remove and Install – Mechanical Priming
– Gear Group (Front) – Remove and Install
– Glow Plugs – Remove and Install
– Housing (Front) – Install
– Housing (Front) – Remove
– Idler Gear – Install
– Idler Gear – Remove
– Inlet and Exhaust Valve Guides – Remove and Install
– Inlet and Exhaust Valve Springs – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Lifter Group – 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 Shaft – Assemble
– Rocker Shaft – Disassemble
– Rocker Shaft and Pushrod – Install
– Rocker Shaft and Pushrod – Remove
– Turbocharger – Install – Side Mounted Turbocharger
– Turbocharger – Install – Side Mounted Turbocharger
– Turbocharger – Remove – Side Mounted Turbocharger
– Turbocharger – Remove – Turbocharger Top Mounted
– V-Belts – Remove and Install
– Valve Mechanism Cover – Remove and Install
– Vibration Damper and Pulley – Install
– Vibration Damper and Pulley – Remove
– Water Pump – Install
– Water Pump – Remove
– Water Separator and Fuel Filter (Primary) – Remove and
– Water Temperature Regulator – Remove and Install
Schematic Air Conditioning Electrical System
– RENR7299-11_OUT
– RENR7299-11_IN
Schematic Caterpillar 320D2 Excavator Electrical System
– Features
– Cover Page
– Information
– Component Location
– Connector Location
– Schematic
– Function Isolation Tools
– Grids On/Off
– All Circuits Off
– All Circuits On
– Unspecified Circuit
– Black (Ground)
– 032 (Red) (Battery Power)
– 640 (Blue) (Key Power)
– 305 (Lt Blue) (Converter 12v Out)
– 021 (Orange) (Starting Circuit)
– 190 (Dk Pink) (Start Aid Circuit)
– 258 (Dk Purple) (Machine Control Circuit)
– 346 (Med Green) (Monitor Circuit)
– 430 (Dk Gray) (Machine Security Control Circuit)
– 613 (Dk Yellow) (Heater and Air Conditioner Circuit)
– 4665 (Tan) (Turn Signal / Wiper Washer Circuit)
– CON 346 (CAT D.L.)
– CON 032 (RS232/485 D.L.)
– CON 190 (CAN “A” D.L.)
– CON 522 (CAN “B” D.L.)
– Machine Views
– Battery Compartment
– Disconnect Box
– Engine Front
– Engine Rear
– Fueling Pump Atch
– Main Valve
– Operator Station Below
– Operator Station Left Side
– Operator Station M Harness Conn.
– Operator Station MSS Keyreader
– Operator Station Rear Of Seat
– Operator Station Right Side
– Operator Station Top
– Pivot Motor Forward
– Pump Room Compartment Right Rear
Schematic Caterpillar 320D2 and 320D2 GC Excavator Hydraulic System
– Features
– Cover page
– Tables
– Components
– Tap
– Schematic
– Machine Views
– Pump – Right Side
– Main Control Valve – Front
– Machine – Right Side
– Cab – Top
Specifications 320D2 and 323D2 Excavators Machine Systems
– Air Cleaner
– Air Cleaner – Precleaner
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Precleaner
– Blower Motor
– Boom – 5.200 m (17.0604 ft)
– Boom – 5.675 m (18.6188 ft)
– Boom – 5.7 m (18.70 ft)
– Boom – 8.85 m (29.035 ft)
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines – Left Hand
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines – Coupler Lines for Reach Boom
– Bucket – Side Bar Protector
– Bucket Adjuster
– Bucket Adjuster
– Bucket Adjuster
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Linkage
– Bucket Linkage
– Bucket Linkage
– Bucket Linkage – B1 Family
– Bucket Linkage – CB2 Family
– Cab
– Cab
– Cab
– Cab
– Cab
– Cab
– Cab
– Check Valve (Return Lines)
– Check Valve (Return Lines)
– Control Valve (Auxiliary)
– Control Valve (Auxiliary)
– Control Valve (Auxiliary) – Medium Pressure
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Cutting Edge
– Engine Mounting
– Fasteners – Swing Drive and Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Front Idler
– Front Idler
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines – Combined Function
– Front Lines – Medium Pressure
– Front Lines – Quick Coupler
– Front Lines – Quick Coupler
– Front Lines – Single Function
– Front Lines – Universal Quick Coupler
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank and Mounting
– Fuel Tank and Mounting
– Fuel Tank and Mounting
– Fuel Tank and Mounting
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Handle Control (Travel)
– Handle Control (Travel)
– Heater and Air Conditioner Mounting
– Heater and Air Conditioner Mounting
– Hydraulic Oil Cooler Lines Group
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank Mounting
– Main Control Valve
– Main Control Valve
– Main Control Valve
– Main Hydraulic Pump
– Main Hydraulic Pump
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines – Heavy Lift
– Pilot Lines – Joystick and Pedals
– Pilot Lines – Joystick and Pedals
– Pilot Lines – Main Control Valve
– Pilot Lines – Main Control Valve
– Pilot Lines – Pedal Controls
– Pilot Lines – Pedal Controls
– Pilot Lines – Stick
– Pilot Lines – Third Pedal and Pilot Valve
– Pilot Valve (Auxiliary)
– Pilot Valve (Boom Drift Reduction)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Stick Drift Reduction)
– Pressure Switch (Refrigerant Pressure Cutoff)
– Pump Coupling
– Pump Coupling
– Pump Coupling – Auxiliary Pump
– Pump Head (Main) – Drive
– Pump Head (Main) – Drive
– Pump Head (Main) – Driven
– Pump Head (Main) – Driven
– Pump Lines (Main)
– Refrigerant Compressor
– Refrigerant Condenser and Mounting
– Relief Valve (Line)
– Relief Valve (Line)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main) – Heavy Lift
– Return Lines – Hydraulic Tank
– Seat Belt
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Sprocket
– Sprocket
– Stick
– Stick – 2.400 m (7.8740 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 6.280 m (20.6037 ft)
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Lines
– Stick Lines
– Stick Lines – Quick Coupler
– Suction Fan
– Swing Drive
– Swing Drive
– Swing Drive
– Swing Drive
– Swing Drive – Without Motor
– Swing Drive Mounting
– Swing Gear and Bearing
– Swing Gear and Bearing
– Swing Gear and Bearing
– Swing Motor
– Swing Motor
– Swing Motor
– Swing Motor
– Swing Motor
– Swivel
– Track
– Track
– Track
– Track
– Track Adjuster
– Track Adjuster and Recoil
– Track Carrier Roller
– Track Carrier Roller
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller Mounting
– Track Roller Mounting
– Track Roller Mounting
– Travel Counterbalance Valve
– Travel Counterbalance Valve
– Travel Motor
– Travel Motor
– Travel Motor and Mounting
– Travel Motor and Mounting
– Travel Motor and Mounting
– Travel Motor Guard
– Travel Motor Guard
– Travel Motor Guard
– Travel Motor Lines
– Upper Frame
– Upper Frame
– Upper Frame
– Upper Frame
– Upper Frame
– Window Wiper
– Window Wiper
Specifications C7.1 (Mech) Engines For Caterpillar Built Machines
– Alternator and Regulator
– Camshaft
– Camshaft Bearings
– Connecting Rod
– Connecting Rod Bearing Journal
– Crankcase Breather
– Crankshaft
– Crankshaft Seals
– Cylinder Block
– Cylinder Head
– Cylinder Head Valves
– Electric Starting Motor
– Engine Design
– Engine Lifting Bracket
– Engine Oil Cooler
– Engine Oil Filter Base
– Engine Oil Pan
– Engine Oil Pressure
– Exhaust Manifold
– Fan Drive
– Flywheel
– Flywheel Housing
– Front Housing and Covers
– Fuel Filter Base – Primary Fuel Filter Base
– Fuel Filter Base – Secondary Fuel Filter Base
– Fuel Injection Lines
– Fuel Injection Pump
– Fuel Injectors
– Fuel Transfer Pump
– Gear Group (Front)
– Glow Plugs
– Lifter Group
– Main Bearing Journal
– Oil Pump
– Piston and Rings
– Piston Cooling Jet
– Rocker Shaft
– Turbocharger
– Valve Mechanism Cover
– Vibration Damper and Pulley
– Water Pump
– Water Temperature Regulator and Housing
Systems Operation 320D2 and 323D2 Excavators Hydraulic System
– Accumulator (Pilot)
– Boom Drift Reduction Valve
– Boom Hydraulic System
– Bucket Hydraulic System
– Bypass Valve (Return) – Bypass Check Valve
– Check Valve (Load)
– Check Valve (Return Makeup) – Slow Return Check Valve
– Control Valve (Boom Lowering)
– Control Valve (Stick Lowering)
– Control Valve (Straight Travel)
– Cylinders (Boom, Stick and Bucket)
– Displacement Change Valve
– Electrical Input Components
– Electrical Input Components
– Electrical Output Components
– Electrical Output Components
– Electronic Control Module
– Electronic Control Module
– Engine Control
– Engine Control
– Final Drive
– Gear Pump (Pilot)
– General Information
– Graphic Color Codes
– Hydraulic Filter (Pilot)
– Hydraulic Oil Cooler
– Hydraulic Tank and Filter
– Main Control Valve
– Main Electrical System
– Main Electrical System
– Main Electrical System
– Main Electrical System
– Main Hydraulic Pump
– Main Hydraulic System
– Main Hydraulic System
– Main Hydraulic System
– Negative Flow Control System
– Oil Filter (Return) – Case Drain Filter
– Oil Makeup (Swing System)
– Oil Makeup (Travel System)
– Pilot Hydraulic System
– Pilot Hydraulic System
– Pilot Hydraulic System
– Pilot Valve (Joystick)
– Pilot Valve (Swing Parking Brake)
– Pilot Valve (Travel)
– Pump Control (Main Hydraulic) – Main Pump Regulator
– Relief Valve (Cushion Crossover) – Anti-Reaction Valves
– Relief Valve (Line)
– Relief Valve (Main)
– Relief Valve (Main) – Heavy Lift
– Relief Valve (Main) – Heavy Lift
– Relief Valve (Pilot)
– Relief Valve (Swing)
– Return Hydraulic System
– Solenoid Valve (Fine Swing) – If Equipped
– Solenoid Valve (Hydraulic Lockout)
– 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
– Swivel
– Travel Counterbalance Valve
– Travel Hydraulic System
– Travel Hydraulic System
– Travel Motor
– Travel Parking Brake
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
Systems Operation Testing and Adjusting C7.1 (Mech) Engines for Caterpillar Built Machines
– Air in Fuel – Test
– Air Inlet and Exhaust System
– Air Inlet and Exhaust System – Inspect
– Alternator – Test
– Basic Engine
– Battery – Test
– Cleanliness of Fuel System Components
– Compression – Test
– Connecting Rod – Inspect
– Connecting Rod Bearings – Inspect
– Cooling System
– Cooling System – Check
– Cooling System – Inspect
– Cooling System – Test
– Cylinder Block – Inspect
– Cylinder Head – Inspect
– Electric Starting System – Test
– Electrical System
– Engine Crankcase Pressure (Blowby) – Test
– Engine Oil Cooler – Inspect
– 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 Injection Nozzle – Test
– Fuel Quality – Test
– Fuel System
– Fuel System – Inspect
– Fuel System – Prime
– Fuel System Pressure – Test
– Gear Group – Inspect
– General Information
– Glow Plugs – Test
– Increased Engine Oil Temperature – Inspect
– Lubrication System
– Main Bearings – Inspect
– Piston Height – Inspect
– Piston Ring Groove – Inspect
– Troubleshooting
– Turbocharger – Inspect
– V-Belt – Test
– Valve Depth – Inspect
– Valve Guide – Inspect
– Vibration Damper – Check
– Water Temperature Regulator – Test
Systems Operation, Testing and Adjusting Air Conditioning and Heating
– Air Conditioning System
– Evaporator Coil
– Blower Motor
– Actuator (Air Conditioner Control)
– Air Conditioning and Heating System Sensor Operation
– Control Panel (Air Conditioner and Heater)
– Control Module
– Speed Control
– Heater Core (Cab)
– Machine Preparation for Troubleshooting
– General Troubleshooting Information
– Air Conditioning System
– Visual Inspection
– Troubleshooting Faults With Service Codes
– 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)
– Refrigerant Compressor
– Air Conditioning E43 – Damper (Air Outlet)
– Air Conditioning E44 – Damper Error
– Air Conditioning System Troubleshooting
– Air Conditioning System Troubleshooting
– Heating System Troubleshooting
– Required Tools
– Refrigerant Recovery
– Manifold Gauge Set (Refrigerant) – Install
– Refrigerant System – Evacuate
– Refrigerant System – Flush
– Refrigerant Compressor
– Refrigerant Leakage – Test
– Refrigerant Compressor Oil – Check
– Refrigerant System – Charge
– Manifold Gauge Set (Refrigerant) – Remove
– Refrigerant Condenser
– Refrigerant Condenser
– Refrigerant Receiver-Dryer
– Pressure Switch (Refrigerant Pressure Cutoff)
– Refrigerant Expansion Valve
– General Information
Testing and Adjusting 320D2 Excavator Machine Systems
– Accumulator (Pilot) – Test and Charge
– Cylinder Drift – Check – Empty Bucket
– Cylinder Drift – Check – Loaded Bucket
– Cylinder Speed – Check
– Cylinder Speed – Check
– Engine Performance – Test – Engine Speed
– Engine Performance – Test – Engine Speed
– Gear Pump (Pilot) – Test
– Gear Pump (Pilot) – Test
– General Testing and Adjusting Information
– Machine Drift on a Slope – Check
– Main Hydraulic Pump Air – Purge
– Main Pump (Flow) – Test – Hydraulic Power
– Main Pump (Flow) – Test – Hydraulic Power
– Main Pump (Flow) – Test – Hydraulic Power
– Main Pump (Flow) – Test – Maximum Output Flow, Constant
– Main Pump (Flow) – Test – Maximum Output Flow, Constant
– Main Pump (Flow) – Test – Maximum Output Flow, Constant
– Operational Checks
– Overload Warning – Set – If Equipped
– Overload Warning – Set – If Equipped
– Pump Control (Negative Flow) – Adjust
– Pump Control (Negative Flow) – Test
– Pump Control (Negative Flow) – Test
– Pump Control (Negative Flow) – Test
– Pump Control (Output Flow) – Adjust
– Relief Valve (Crossover) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Main) – Test and Adjust – Heavy Lift
– Relief Valve (Pilot) – Test and Adjust
– Relief Valve (Swing) – Test and Adjust
– Specifications
– Speed Sensor – Adjust – Engine
– Swing Bearing Movement – Measure
– Swing Motor – Test – Measurement of Case Drain Oil
– 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
– Travel on Level Ground – Test – Optional Test
– Travel on Level Ground – Test – Optional Test
– Visual Inspection
Troubleshooting 320D2 Excavator Machine Electronic Control System
– Alarm – Test
– CAN Data Link – Test
– Connector Contact Description
– Connector Locations
– 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
– Engine Speed Control – Test
– Event Codes
– General Information
– Relay – 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
– Speed Sensor – Test
– Symptom Troubleshooting
– System Schematic
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
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