938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Braking System
– Accumulator Charging Valve (Brake)
– Brake Accumulator
– Brake Control Valve (Service)
– Breaker Relief Valve
– Foot Brake Control
– Hydraulic Tank and Filter
– Limit Switch (Parking Brake)
– Limit Switch (Stop Light) (Left Brake Pedal)
– Parking Brake
– Parking Brake Control
– Position Sensor (Left Brake Pedal)
– Pressure Switch (Service Brake Oil)
– Service Brakes
– Temperature Sensor (Hydraulic Oil)
– Vane Pump (Braking)
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Braking System
– Accumulator Charging Valve (Brake)
– Brake Accumulator
– Brake Control Valve (Service)
– General Information (Braking)
– Parking Brake
– Position Sensor (Left Brake Pedal)
– Service Brake Disc Wear Indicator
– Service Brakes
– Vane Pump (Braking)
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Hydraulic System
– Electrical Output Components
– Gear Motor (Hydraulic Fan)
– General Testing and Adjusting Information
– Hydraulic Fan Speed – Test and Adjust
– Hydraulic Fan System
– Hydraulic Oil Contamination – Test
– Implement Hydraulic System – IT38G Series II Integrated
– Introduction – IT38G Series II Integrated Toolcarrier
– Kickout and Positioner – Adjust
– Kickout System – Integrated Toolcarrier
– Lift Cylinder – Isolation and Drift Check
– Main Control Valve – IT38G Series II Integrated Toolcarrier
– Pilot System Pressure – Test
– Pilot Valve
– Piston and Vane Pump (Implement Section)
– Piston Pump (Hydraulic Fan)
– Pump Performance (Implement) – Test
– Relief Valve (Line)
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Main)
– Relief Valve (Main) – Test and Adjust
– Ride Control Accumulator – Test and Charge
– Ride Control System
– Solenoid Valve (Pilot Diverter, 4 Function Hydraulics)
– System Pressure – Release
– Tilt Cylinder – Isolation and Drift Check – IT38G Series II
– Torque Converter Stall and Implement Pump Double Stall – Test
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Monitor System
– Component Description
– Connector Contact Description
– Data Link
– Diagnostic Operation
– Features
– Introduction
– Location of Electrical Components
– Module – Replace
– Self Test
– System Schematic
– Warning Operation
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems
– Backup Alarm Circuit
– Cab Mounting
– Charging Circuit
– Engine Starting Circuit
– Fuel Level Sender
– Governor Pedal
– Hood Tilt Actuator
– Position Sensor (Throttle)
– Speed Limiting Function
– Toggle Switch (Ground Level Shutdown)
– Toggle Switch (Hood Tilt)
– Window Wiper and Wiper Motor
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Power Train
– Axle (Fixed and Oscillating)
– Axle Housing and Bearing Preload – Adjust
– Axle Oil Cooler
– Data Link
– Differential
– Differential (Limited Slip)
– Differential (NoSPIN)
– Differential Backlash and Bearings – Adjust
– Differential Pinion Preload – Adjust
– Differential Pinion Preload – Adjust
– Electrical Input Components
– Electrical Output Components
– Electrical Schematic (Transmission)
– Electronic Control Module (Power Train)
– Engagement Pressure for the Transmission Clutch – Calibrate
– Features
– Fill Time for the Transmission Clutch – Calibrate
– Integrated Braking System
– Introduction
– Limited Slip Differential Disc End Play – Check
– Location of Electrical Components
– Location of Hydraulic Components
– Modulating Valve (Transmission Clutch)
– NoSPIN Differential – Test
– Oil Filter (Power Train)
– Position Sensor (Left Brake Pedal) – Calibrate
– Relief Valve (Transmission Hydraulic Control)
– Torque Converter
– Torque Converter Stall – Test
– Transmission Clutch Running Clearance – Check
– Transmission Control (Shift Lever) – Test
– Transmission Hydraulic System Schematic
– Transmission Oil Cooler
– Transmission Power Flow
– Transmission Pressures – Test and Adjust
– Transmission Pump
938G Wheel Loader, 938G Series II Wheel Loader, IT38G Integrated Toolcarrier and IT38G Series II Integrated Toolcarrier Traction Control System
– Accumulator Charging Valve
– Accumulator Charging Valve
– Accumulator Charging Valve – Test and Adjust
– Articulation Angle Position Sensor – Adjust and Calibrate
– Brake Air Purge Plug
– Brake Proportional Manifold
– Connector Locations
– Data Link
– Diagnostic Capabilities
– Diagnostic Code List
– Electrical Components
– Electrical Connector – Inspect
– Electronic Control Module (ECM)
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– General Information
– General Information
– Glossary of Electrical Terms
– Harness Code Plug
– Hydraulic and Electrical Operation
– Hydraulic Components
– Machine Preparation for Troubleshooting
– MID 028 – CID 0168 – FMI 00
– MID 028 – CID 0168 – FMI 01
– MID 028 – CID 0248 – FMI 09
– MID 028 – CID 0263 – FMI 00
– MID 028 – CID 0263 – FMI 01
– MID 028 – CID 0270 – FMI 02
– MID 028 – CID 0270 – FMI 09
– MID 028 – CID 0270 – FMI 12
– MID 028 – CID 0296 – FMI 09
– MID 028 – CID 0605 – FMI 02
– MID 028 – CID 0606 – FMI 02
– MID 028 – CID 0607 – FMI 02
– MID 028 – CID 0608 – FMI 02
– MID 028 – CID 0609 – FMI 03
– MID 028 – CID 0609 – FMI 05
– MID 028 – CID 0609 – FMI 06
– MID 028 – CID 0610 – FMI 03
– MID 028 – CID 0610 – FMI 05
– MID 028 – CID 0610 – FMI 06
– MID 028 – CID 0611 – FMI 03
– MID 028 – CID 0611 – FMI 05
– MID 028 – CID 0611 – FMI 06
– MID 028 – CID 0612 – FMI 03
– MID 028 – CID 0612 – FMI 05
– MID 028 – CID 0612 – FMI 06
– MID 028 – CID 0613 – FMI 03
– MID 028 – CID 0613 – FMI 05
– MID 028 – CID 0613 – FMI 06
– MID 028 – CID 0615 – FMI 00
– MID 028 – CID 0615 – FMI 01
– MID 028 – CID 0615 – FMI 03
– MID 028 – CID 0615 – FMI 04
– MID 028 – CID 0615 – FMI 13
– MID 028 – CID 0616 – FMI 02
– MID 028 – CID 0653 – FMI 12
– MID 028 – CID 0687 – FMI 02
– On/Off Pilot Solenoid Valve
– On/Off Pilot Solenoid Valve
– On/Off Pilot Solenoid Valve
– On/Off Pilot Solenoid Valve
– Operator Display
– Pressure Reducing Valve
– Pressure Reducing Valve
– Pressure Reducing Valve – Test and Adjust
– Proportional Pressure Solenoid Valve
– Proportional Pressure Solenoid Valve
– Proportional Pressure Solenoid Valve
– Proportional Pressure Solenoid Valve
– Proportional Pressure Solenoid Valve – Test
– Proportional Pressure Solenoid Valve – Test
– Sensors
– Service Tools
– Shuttle Valve
– Shuttle Valve
– Shuttle Valve – Test
– System Schematic
– System Schematic
– Test/Enable Switch
– Test/Enable Switch
– Using Caterpillar Electronic Technician to Determine
– Visual Inspection
– Wheel Speed Sensor
– Wheel Speed Sensor – Replace
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Air Conditioning and Heating R134a for All Caterpillar Machines
– Refrigerant Compressor
– System Capacities for Refrigerant (Off-Highway Trucks)
– General Information
– Identifying the Refrigerant
– Identifying the Air Conditioning System
– Identifying the Heating System
– Refrigerant Expansion Valve System
– Refrigerant Orifice Tube System
– Refrigerant Compressor
– Refrigerant Condenser
– Refrigerant Receiver-Dryer
– Refrigerant Compressor
– Refrigerant Expansion Valve
– In-line Refrigerant Dryer
– Refrigerant Orifice Tube Assembly
– Evaporator Coil
– Refrigerant Accumulator
– Refrigerant Compressor Protection System
– Temperature Control
– Pressure Switch (Refrigerant)
– Cab Pressurization and Filtration System
– Condensate Drainage System
– Refrigerant Compressor
– Service Intervals
– Glossary of Terms
– Required Tools
– Machine Preparation for Troubleshooting
– General Troubleshooting Information
– General Troubleshooting Information
– Visual Inspection (Troubleshooting)
– Air Conditioning System Troubleshooting
– Heating System Troubleshooting
– Automatic Temperature Control System (ECM Controlled)
– Refrigerant Compressor
– Troubleshooting Heating and Air Conditioning Control System
– Troubleshooting Heating and Air Conditioning Control System
– Automatic Temperature Control Panel Troubleshooting – 584
– Troubleshooting Condensate Drainage System
– Machine Preparation for Testing and Adjusting
– Air Conditioning Performance – Test
– Refrigerant Leakage – Test
– Manifold Gauge Set (Refrigerant) – Install
– Refrigerant Recovery
– Refrigerant System – Flush
– Refrigerant Compressor
– Refrigerant Oil – Test
– Refrigerant Compressor – Test
– Refrigerant System – Evacuate
– Refrigerant System – Charge
– Manifold Gauge Set (Refrigerant) – Remove
– Compressor Protection System – Test
– Electronic Heat Control – Test
– Heater Performance – Test
– Heating and Air Conditioning Service Publications
– General Information
– Refrigerant Compressor
– Machine Preparation for Disassembly and Assembly
– Air Conditioner Lines – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Accumulator – Remove and Install
– Refrigerant Expansion Valve – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– In-Line Refrigerant Dryer – Remove and Install
– Refrigerant Orifice Tube Assembly – Remove and Install
– Refrigerant Compressor
– System Capacities for Refrigerant (Motor Graders)
– System Capacities for Refrigerant (Off-Highway Trucks) –
– Refrigerant Compressor
Alternator – Delco 21SI
– Alternator
– Alternator – Assemble
– Alternator – Disassemble
– Brush Length – Check
– Capacitor – Test
– Charging System
– Component Description
– Diode Assembly – Test
– Field Winding – Test
– General Information
– General Information
– Insulated Screw – Check
– Normal Operation
– Rectifier – Test
– Regulator – Test
– Residual Magnetism – Restore
– Service Tools
– Stator – Test
Alternator – Delco 27SI
– Alternator
– Alternator
– Alternator – Assemble
– Alternator – Disassemble
– Brush Length – Check
– Capacitor – Test
– Charging System
– Component Description
– Diode Assembly – Test
– Field Winding – Test
– General Information
– General Information
– Insulated Screw – Check
– Normal Operation
– Rectifier – Test
– Regulator – Test
– Residual Magnetism – Restore
– Service Tools
– Stator – Test
Disassembly and Assembly 3126B Engines for Caterpillar Built Machines
– Air Inlet Cover – Remove and Install
– Air Inlet Elbow – Remove and Install
– Air Inlet Heater Solenoid – Remove and Install
– Alternator – Remove and Install
– Bearing Clearance – Check
– Belt Tensioner – Remove and Install
– Camshaft – Install
– Camshaft – Remove
– Camshaft Bearings – Remove and Install
– Camshaft Gear – Remove and Install
– Camshaft Idler Gear – Remove and Install
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Install
– Crankshaft Front Seal – Remove
– Crankshaft Gear – Remove and Install
– Crankshaft Main Bearings – Install
– Crankshaft Main Bearings – Remove
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Crankshaft Rear Seal Carrier – Remove and Install
– Crankshaft Wear Sleeve (Rear) – Install
– Crankshaft Wear Sleeve (Rear) – Remove – If Equipped
– Cylinder Head – Install
– Cylinder Head – Remove
– Electric Starting Motor – Remove and Install
– Electronic Control Module – Remove and Install
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine Oil Filter Base – Assemble
– Engine Oil Filter Base – Disassemble
– Engine Oil Filter Base – Install
– Engine Oil Filter Base – Remove
– Engine Oil Pan – Remove and Install
– Engine Oil Pump – Assemble
– Engine Oil Pump – Disassemble
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Exhaust Manifold – Remove and Install
– Flywheel – Remove and Install
– Flywheel Housing – Remove and Install
– Front Cover – Install
– Front Cover – Remove
– Fuel Pressure Regulator – Remove and Install
– Fuel Transfer Pump – Install – If Equipped
– Fuel Transfer Pump – Remove – If Equipped
– Housing (Front) – Install
– Housing (Front) – Remove
– Idler Pulley – Remove and Install
– Injection Actuation Pressure Control Valve – Remove and
– Inlet and Exhaust Valve Guides – Remove and Install
– Inlet and Exhaust Valve Seat Inserts – 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 – Assemble
– Turbocharger – Disassemble
– Turbocharger – Install
– Turbocharger – Remove
– Unit Injector – Install
– Unit Injector – Remove
– Unit Injector Hydraulic Pump – Install
– Unit Injector Hydraulic Pump – Remove
– Unit Injector Sleeve – Install
– Unit Injector Sleeve – Remove
– Valve Mechanism Cover – Remove and Install
– Valve Mechanism Cover Base – Remove and Install
– Vibration Damper and Pulley – Remove and Install
– Water Pump – Assemble
– Water Pump – Disassemble
– Water Pump – Install
– Water Pump – Remove
– Water Temperature Regulator – Remove and Install
– Water Temperature Regulator Housing – Remove and Install
Disassembly and Assembly 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Engine Supplement
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Belt Tensioner – Remove and Install
– Crankshaft Front Seal – Install
– Crankshaft Front Seal – Remove
– Electric Starting Motor – Remove and Install
– Engine – Install
– Engine – Remove
– Engine from Torque Converter and Transmission – Separate
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine to Torque Converter and Transmission – Connect
– Engine, Torque Converter and Transmission – Install
– Engine, Torque Converter and Transmission – Remove
– Fan and Gear Motor (Hydraulic Fan) – Install
– Fan and Gear Motor (Hydraulic Fan) – Remove
– Fuel Filter (Secondary) and Fuel Filter Base – Remove and
– Fuel Priming Pump and Primary Filter (Water Separator) –
– Fuel Tank – Install
– Fuel Tank – Remove
– Hood – Install
– Hood – Remove
– Hood Tilt Actuator – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Muffler – Remove and Install
– Radiator and Fan Group – Install
– Radiator and Fan Group – Remove
– Radiator Bottom Tank – Remove and Install
– Radiator Core – Remove and Install
– Radiator Top Tank – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Steering Frame Lock – Separate and Connect
– System Pressure – Release
– Turbocharger – Install
– Turbocharger – Remove
– Unit Injector – Install
– Unit Injector – Remove
– Unit Injector Hydraulic Pump – Install
– Unit Injector Hydraulic Pump – Remove
– Water Pump – Install
– Water Pump – Remove
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Machine Systems
– Accumulator Charging Valve (Brake) – Remove and Install
– Blower Motor (Air Conditioner, Heater) – Install
– Blower Motor (Air Conditioner, Heater) – Remove
– Brake Accumulator – Remove and Install
– Brake Control Valve (Service) – Remove and Install
– Brake Proportional Manifold (Traction Control System) –
– Brake Proportional Manifold (Traction Control System) –
– Brake Proportional Manifold (Traction Control System) –
– Brake Proportional Manifold (Traction Control System) –
– Bucket – Install
– Bucket – Remove
– Cab – Install
– Cab – Remove
– Coupler Cylinder – Remove and Install
– Evaporator Coil – Remove and Install
– Fan and Gear Motor (Hydraulic Fan) – Install
– Fan and Gear Motor (Hydraulic Fan) – Remove
– Gear Motor (Hydraulic Fan) – Assemble
– Gear Motor (Hydraulic Fan) – Disassemble
– Heater Coil – Install
– Heater Coil – Remove
– Hydraulic Tank – Assemble
– Hydraulic Tank – Disassemble
– Hydraulic Tank – Install
– Hydraulic Tank – Remove
– Lift Arms – Install
– Lift Arms – Remove
– Lift Cylinder – Remove and Install
– Lift Kickout Control – Remove and Install
– Loader Frame and Rear Frame – Connect
– Loader Frame and Rear Frame – Separate
– Main Control Valve – Assemble
– Main Control Valve – Disassemble
– Main Control Valve – Install
– Main Control Valve – Remove
– Metering Pump (HMU) – Install
– Metering Pump (HMU) – Remove
– Parking Brake – Remove and Install
– Pilot Operated Hydraulic Control (Joystick) – Assemble
– Pilot Operated Hydraulic Control (Joystick) – Disassemble
– Pilot Operated Hydraulic Control (Joystick) – Install
– Pilot Operated Hydraulic Control (Joystick) – Remove
– Pilot Operated Hydraulic Control – Assemble
– Pilot Operated Hydraulic Control – Disassemble
– Pilot Operated Hydraulic Control – Install
– Pilot Operated Hydraulic Control – Remove
– Piston and Vane Pump (Steering and Implement) – Assemble
– Piston and Vane Pump (Steering and Implement) – Disassemble
– Piston and Vane Pump (Steering and Implement) – Install
– Piston and Vane Pump (Steering and Implement) – Remove
– Piston Pump (Hydraulic Fan) – Assemble
– Piston Pump (Hydraulic Fan) – Disassemble
– Piston Pump (Hydraulic Fan) – Install
– Piston Pump (Hydraulic Fan) – Remove
– Pressure Reducing Valve (Traction Control System) – Remove
– Pump Control Valve (Steering) – Remove and Install
– Quick Coupler – Install
– Quick Coupler – Remove
– 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 – Install
– Secondary Steering Valve – Remove
– Selector and Pressure Control Valve (Pilot) – Remove and
– Solenoid Valve (Pilot Diverter, 4 Function Hydraulics) –
– Solenoid Valve and Manifold (Ride Control, Head End) –
– Solenoid Valve and Manifold (Ride Control, Rod End) –
– Steering Control Valve – Assemble
– Steering Control Valve – Disassemble
– Steering Control Valve – Install
– Steering Control Valve – Remove
– Steering Cylinder – Remove and Install
– Steering Frame Lock – Separate and Connect
– Steering Wheel – Remove and Install
– System Pressure – Release
– Tilt Cylinder – Remove and Install
– Tilt Lever (Front) and Tilt Link (Front) – Install
– Tilt Lever (Front) and Tilt Link (Front) – Remove
– Tilt Lever (Rear) – Install
– Tilt Lever (Rear) – Remove
– Tilt Lever – Install
– Tilt Lever – Remove
– Tilt Link (Rear) – Install
– Tilt Link (Rear) – Remove
– Vane Pump (Braking) – Assemble
– Vane Pump (Braking) – Disassemble
– Vane Pump (Braking) – Install
– Vane Pump (Braking) – Remove
– Window Wiper and Wiper Motor (Front) – Install
– Window Wiper and Wiper Motor (Front) – Remove
– Window Wiper and Wiper Motor (Rear) – Install
– Window Wiper and Wiper Motor (Rear) – Remove
– Work Tool Positioner Control – Remove and Install
Disassembly and Assembly 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Power Train
– Axle Housing – Assemble
– Axle Housing – Disassemble
– Bottom Guard (Engine) – Remove and Install
– Differential – Assemble
– Differential – Disassemble
– Differential and Bevel Gear – Install
– Differential and Bevel Gear – Remove
– 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
– Manifold (Transmission Control Valve) – Install
– Manifold (Transmission Control Valve) – Remove
– Modulating Valve (Transmission Clutch) – Assemble
– Modulating Valve (Transmission Clutch) – Disassemble
– Modulating Valve (Transmission Clutch) – Install
– Modulating Valve (Transmission Clutch) – Remove
– NoSPIN Differential – Assemble
– NoSPIN Differential – Disassemble
– Oscillating Axle (Rear) – Remove and Install
– Parking Brake – Remove and Install
– Power Train Guard (Transmission) – Remove and Install
– Relief Valve (Transmission Hydraulic Control) – Assemble
– Relief Valve (Transmission Hydraulic Control) – Disassemble
– Relief Valve (Transmission Hydraulic Control) – Install
– Relief Valve (Transmission Hydraulic Control) – Remove
– 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 – Assemble – Fixed
– Torque Converter – Assemble – Free Wheel
– Torque Converter – Disassemble – Fixed
– Torque Converter – Disassemble – Free Wheel
– Transmission – Assemble
– Transmission – Disassemble
– Transmission and Torque Converter – Connect
– Transmission and Torque Converter – Separate
– Transmission Oil Pump – Assemble
– Transmission Oil Pump – Disassemble
– Transmission Oil Pump – Install
– Transmission Oil Pump – Remove
– Trunnion Support (Oscillating Axle, Front) – Remove and
– Trunnion Support (Oscillating Axle, Rear) – Remove and Install
Flexxaire Fan
– Calibration
– Control System
– Control System
– Control System – Remove and Install
– Hydraulic Actuated Fan – Assemble
– Hydraulic Actuated Fan – Disassemble
– Hydraulic Actuated Fan System
– Mechanical Actuated Fan
– Mechanical Actuated Fan – Assemble
– Mechanical Actuated Fan – Disassemble
– Mechanical Actuated Fan System
– Setup
– Torque Specifications (Flexxaire Fan)
MSS3s Machine Security System
– Cat Data Link – Test
– Connector Contact Description
– Connector Locations
– Data Links
– Determining Diagnostic Trouble Codes
– Diagnostic Capabilities
– Diagnostic Operation
– Diagnostic Trouble Codes
– ECM – Configure
– ECM – Replace
– ECM Output Driver – Test
– ECM Software – Install
– Electrical Connector – Inspect
– Electrical Power Supply – Test
– Electronic Control Module (ECM)
– Emerging Symptom Information
– Engine Does Not Crank and Status Indicator Is Green
– Engine Does Not Start and Status Indicator Is Continuously
– Events
– Factory Password – Obtain
– General Information
– General Information
– General Information
– Glossary of Terms
– Key – Program
– Key Information
– Lost Key (MSS)
– Machine Preparation for Troubleshooting
– Normal Operation
– Operation of Status Indicator
– Product Identification Number – Program
– Protected Functions
– Scheduled Access – “Security System Bypass Times”
– Service Operation Using Machine Security System
– Service Operation Using Service Tool
– Service Tools
– Software – Uninstall – “Immobilizer” Feature
– Symptom Troubleshooting
– System Components
– System Disarm – Program – Security System Bypass
– System Overview
– System Schematic
– Time – Set
– Visual Inspection
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Machine Security System
– Cat Data Link
– Diagnostic Code List
– Diagnostic Operation
– Electrical Component and Connector Locations
– Electrical Connector – Inspect
– Electronic Control Module (ECM)
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– Emerging Symptom Information
– Engine Does Not Crank and Status Indicator Is Green
– Engine Does Not Start and Status Indicator Is Continuously
– Events
– Factory Password – Obtain
– General Information
– General Information
– General Information
– Glossary of Terms
– Key – Program
– Key Information
– Lost Key
– MID 124 – CID 0168 – FMI 00
– MID 124 – CID 0168 – FMI 01
– MID 124 – CID 0248 – FMI 12
– MID 124 – CID 0817 – FMI 04
– MID 124 – CID 1391 – FMI 03
– MID 124 – CID 1391 – FMI 04
– MID 124 – CID 1392 – FMI 03
– MID 124 – CID 1392 – FMI 04
– Normal Operation
– Operation of Status Indicator
– Product Identification Number – Program
– Protected Functions
– Scheduled Access – “Security System Bypass Times”
– Service Operation Using Machine Security System
– Service Operation Using Service Tool
– Service Tools
– Software – Uninstall – “Immobilizer” Feature
– Symptom Troubleshooting
– System Components
– System Disarm – Program – Security System Bypass
– System Overview
– System Schematic
– Time – Set
– Using Caterpillar Electronic Technician to Determine
Medium Wheel Loaders (MWL) Payload Control System (PCS) 3.0
– Calibration
– Component Description
– Connector Locations
– Diagnostic Capabilities
– Diagnostic Code List
– Download Operation
– Electrical Connector – Inspect
– Electronic Control Module (ECM) – Configure
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– General Information
– General Information
– MID 074 – CID 0168 – FMI 03
– MID 074 – CID 0168 – FMI 04
– MID 074 – CID 0364 – FMI 02
– MID 074 – CID 0364 – FMI 03
– MID 074 – CID 0364 – FMI 04
– MID 074 – CID 0364 – FMI 08
– MID 074 – CID 0591 – FMI 12
– MID 074 – CID 0769 – FMI 02
– MID 074 – CID 0769 – FMI 03
– MID 074 – CID 0769 – FMI 04
– MID 074 – CID 0769 – FMI 08
– MID 074 – CID 1964 – FMI 02
– MID 074 – CID 1964 – FMI 03
– MID 074 – CID 1964 – FMI 04
– MID 074 – CID 1964 – FMI 08
– MID 074 – CID 1964 – FMI 13
– Reweigh Operation
– Service Tools
– System Schematic
– System Setup
– Using Caterpillar Electronic Technician to Determine
– Using Messenger to Determine Diagnostic Codes
– VIMSpc Software
– Weighing Operation
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
– Zero Operation
Payload Control System (PCS) 2.X
– Additional Key Functions
– Battery (Internal Backup) – Replace
– Calibration
– Calibration (Fine Tune)
– Component Description
– Diagnostic Code List
– Electrical Component and Connector Locations
– Electrical Connector – Inspect
– Error and Warning Messages
– General Information
– General Information
– Glossary of Electrical Terms
– Keypad
– MID 074 – CID 0168 – FMI 00
– MID 074 – CID 0168 – FMI 01
– MID 074 – CID 0254 – FMI 12
– MID 074 – CID 0254 – FMI 13
– MID 074 – CID 0350 – FMI 01
– MID 074 – CID 0350 – FMI 02
– MID 074 – CID 0350 – FMI 13
– MID 074 – CID 0364 – FMI 01
– MID 074 – CID 0364 – FMI 02
– MID 074 – CID 0364 – FMI 08
– MID 074 – CID 0769 – FMI 01
– MID 074 – CID 0769 – FMI 02
– MID 074 – CID 0769 – FMI 08
– MID 074 – CID 0817 – FMI 04
– MID 074 – CID 0817 – FMI 08
– MID 074 – CID 0817 – FMI 12
– MID 074 – CID 0820 – FMI 02
– Normal Weighing Operation
– Payload Control System Troubleshooting without Diagnostic
– Payload Control System/PC Off-Board System
– Payload Electronic Control Module
– Payload Electronic Control Module – Replace
– Position Sensor (Lift Linkage) – Adjust
– Sensors
– Service Display Mode
– Service Tools
– System Schematic
– System Setup Procedure
– Using Service Display Mode to Determine Diagnostic Codes
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Schematic Caterpillar 938G Series II Wheel Loader Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine View
– Machine Comonent Locations
Schematic Caterpillar 938G Series II Wheel Loader IT38G Series II Integrated Toolcarrier Electrical System
Schematic Caterpillar 938G Series II Wheel Loader IT38G Series II Integrated Toolcarrier Electrical System
Specifications 3126B Engine for Caterpillar Built Machines
– Air Inlet Elbow
– Air Inlet Heater
– Alternator and Air Compressor Mounting Group
– Alternator and Regulator
– Atmospheric Pressure Sensor – If Equipped
– Belt Tension Chart
– Belt Tensioner – If Equipped
– Camshaft
– Connecting Rod
– Connecting Rod Bearing Journal
– Coolant Temperature Sensor
– Crankcase Breather
– Crankshaft
– Crankshaft Seals
– Cylinder Block
– Cylinder Block Cover Group
– Cylinder Head
– Cylinder Head Valves
– Electric Starting Motor
– Electronic Control Wiring Group
– Engine Design
– Engine Oil Filter Base
– Engine Oil Pan
– Engine Oil Pressure Sensor – If Equipped
– Engine Oil Pump
– Engine Oil Temperature Sensor
– Exhaust Manifold
– Fan Drive
– Flywheel
– Flywheel Housing
– Front Housing and Covers
– Fuel Filter and Water Separator
– Fuel Filter Base
– Fuel Pressure Sensor
– Fuel Transfer Pump
– Gear Group (Front)
– Gear Group (Front)
– Injection Actuation Pressure Control Valve
– Injection Actuation Pressure Sensor
– Inlet Air Temperature Sensor
– Inlet Manifold – Internal Mounted Air Inlet Heater
– Main Bearing Journal
– Piston and Rings
– Piston and Rings
– Piston Cooling Jet
– Piston Cooling Jet
– Speed Sensor
– Speed/Timing Sensor
– Turbocharger
– Turbocharger Inlet Pressure Sensor
– Turbocharger Outlet Pressure Sensor
– Unit Injector
– Unit Injector Hydraulic Pump
– Valve Mechanism Cover
– Valve Rocker Arms, Lifters, and Bridges
– Vibration Damper and Pulley
– Water Pump
– Water Pump
– Water Temperature Regulator
Specifications 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Hydraulic System
– Ball Switch (Hydraulic Lockout Detent Override)
– Breaker Relief Valve
– Check Valve (Hydraulic Oil Cooler Bypass)
– Check Valve (Ride Control)
– Diverter Valve (Quick Coupler)
– Gear Motor (Hydraulic Fan)
– Ground Engaging Tool Torques
– Hydraulic Tank and Filter
– Lift Cylinder – Integrated Toolcarrier
– Main Control Valve – Integrated Toolcarrier
– Pilot Valve
– Pilot Valve (Joystick)
– Piston and Vane Pump (Implement Section)
– Piston Pump (Hydraulic Fan)
– Relief Valve (Line)
– Relief Valve (Main)
– Ride Control Accumulator
– Selector and Pressure Control Valve (Pilot)
– Solenoid Valve (Demand Fan)
– Solenoid Valve (Pilot Diverter, 4 Function Hydraulics)
– Solenoid Valve (Ride Control)
– Temperature Sensor (Hydraulic Oil)
– Tilt Cylinder – Integrated Toolcarrier
– Work Tool Control – Integrated Toolcarrier
Specifications 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Power Train
– Axle Mounting
– Bevel Gear and Pinion (Fixed and Oscillating Axles)
– Brake and Planetary
– Bypass Switch (Power Train Oil Filter)
– Check Valve (Axle Oil Cooler Bypass)
– Clutch (First and Third)
– Clutch (Forward High and Forward Low)
– Clutch (Forward High and Forward Low)
– Clutch (Reverse and Second)
– Clutch (Reverse and Second)
– Differential
– Drive Shaft
– Electric Clutch (Axle Oil Cooler Pump)
– Engine and Transmission Mounting
– Fixed Axle Housing
– Gear Pump (Axle Oil Cooler)
– Limited Slip Differential
– Modulating Valve (Transmission Clutch)
– NoSPIN Differential
– Oil Filter (Power Train)
– Oscillating Axle Housing
– Pinout Specifications for Electronic Control (Power Train)
– Relief Valve (Transmission Hydraulic Control)
– Rim Mounting
– Speed Sensor (Torque Converter Output and Transmission
– Speed Sensor (Transmission Intermediate Output)
– Temperature Sensor (Torque Converter Oil)
– Temperature Sensor (Transmission Oil)
– Temperature Switch (Axle Oil Monitoring)
– Temperature Switch (Front and Rear Axle Oil)
– Torque Converter
– Transmission
– Transmission Case
– Transmission Control Valve
– Transmission Output Gears
– Transmission Pump
Specifications 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Steering System
– Articulated Hitch
– Breaker Relief Valve
– Hydraulic Tank and Filter
– Metering Pump (HMU)
– Piston Pump (Steering)
– Pressure Switch (Primary Steering Oil and Secondary Steering
– Relay (Secondary Steering Intermediate)
– Relay (Secondary Steering Motor)
– Relief Valve (Pump Backup)
– Relief Valve (Steering Cylinder Crossover)
– Secondary Steering Pump and Electric Motor
– Secondary Steering Valve
– Steering Control
– Steering Control Valve
– Steering Cylinder
– Temperature Sensor (Hydraulic Oil)
Systems Operation & Testing and Adjusting 3126B Engines
– Aftercooler – Test
– Air in Fuel – Test
– Air Inlet and Exhaust System
– Air Inlet and Exhaust System – Inspect
– Basic Engine
– Battery – Test
– Charging System – Test
– Compression – Test
– Connecting Rod Bearings – Inspect
– Cooling System
– Cooling System – Check – Overheating
– Cooling System – Inspect
– Cooling System – Test
– Cylinder Block – Inspect
– Electric Starting System – Test
– Electrical System
– Electronic Control System Components
– Engine Crankcase Pressure (Blowby) – Test
– Engine Oil Pressure – Test
– Engine Oil Pump – Inspect
– Engine Speed – Check
– Engine Valve Lash – Inspect/Adjust
– Excessive Bearing Wear – Inspect
– Excessive Engine Oil Consumption – Inspect
– Exhaust Temperature – Test
– Finding Top Center Position for No. 1 Piston
– Flywheel – Inspect
– Flywheel Housing – Inspect
– Fuel Quality – Test
– Fuel System
– Fuel System – Inspect
– Fuel System – Prime
– Fuel System Pressure – Test
– Gear Group (Front) – Time
– General Information
– Increased Engine Oil Temperature – Inspect
– Inlet Manifold Pressure – Test
– Lubrication System
– Main Bearings – Inspect
– Pinion Clearance – Adjust
– Piston Ring Groove – Inspect
– Turbocharger – Inspect
– Unit Injector – Test
– Vibration Damper – Check
– Water Pump – Test
– Water Temperature Regulator – Test
Systems Operation 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Steering System
– General Information (Steering)
– Metering Pump (HMU)
– Piston Pump (Steering)
– Secondary Steering Pump and Electric Motor
– Secondary Steering System
– Secondary Steering Valve
– Steering Control Valve
Testing and Adjusting 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Braking System
– Accumulator Charging Valve (Brake) – Test and Adjust
– Brake Accumulator – Test and Charge
– Brake System Air – Purge
– Hydraulic Oil Contamination – Test
– Limit Switch (Stop Light) – Adjust
– Parking Brake – Manual Release
– Parking Brake – Test
– Parking Brake Control – Adjust
– Pump Performance (Braking) – Test
– Service Brake Wear Indicator (Existing Brake Disc) – Check
– Service Brake Wear Indicator (New Brake Disc) – Check
– Service Brakes – Test
– Service Braking System Pressure – Test
– System Pressure – Release
Testing and Adjusting 938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Steering System
– Hydraulic Oil Contamination – Test
– Piston Pump (Steering) Low Pressure Standby – Test
– Piston Pump (Steering) Margin Pressure – Test and Adjust
– Pump Performance (Steering) – Test
– Relief Valve (Pump Backup) – Test and Adjust
– Relief Valve (Steering Cylinder Crossover) – Test and Adjust
– Steering Control Valve – Adjust
– Steering System Pressure (High Pressure Stall) – Test
– Steering Time – Check
– System Pressure – Release
Troubleshooting 3126B Engines for the IT38G Series II Integrated Toolcarrier and the 938G Series II Wheel Loader
– 5 Volt Engine Pressure Sensor Supply Circuit – Test
– Air Inlet Heater Circuit – Test
– Alternator – Noisy Operation
– Analog Sensor Supply Circuit – Test
– Battery
– Can Not Reach Top Engine RPM
– Cat Data Link Circuit – Test
– CID 0001 FMI 11 Cylinder #1 Injector fault
– CID 0002 FMI 11 Cylinder #2 Injector fault
– CID 0003 FMI 11 Cylinder #3 Injector fault
– CID 0004 FMI 11 Cylinder #4 Injector fault
– CID 0005 FMI 11 Cylinder #5 Injector fault
– CID 0006 FMI 11 Cylinder #6 Injector fault
– CID 0041 FMI 03 8 Volt DC Supply short to +batt
– CID 0041 FMI 04 8 Volt DC Supply short to ground
– CID 0042 FMI 11 Inject Actuation Control Valve open/short
– CID 0091 FMI 08 Throttle Position signal abnormal
– CID 0094 FMI 03 Fuel Pressure open/short to +batt
– CID 0094 FMI 04 Fuel Pressure short to ground
– CID 0100 FMI 03 Engine Oil Pressure open/short to +batt
– CID 0100 FMI 04 Engine Oil Pressure short to ground
– CID 0110 FMI 03 Engine Coolant Temperature open/short to
– CID 0110 FMI 04 Engine Coolant Temperature short to ground
– CID 0164 FMI 00 High Injector Actuation Pressure
– CID 0164 FMI 02 Injector Actuation Pressure signal erratic
– CID 0164 FMI 03 Injector Actuation Pressure voltage high
– CID 0164 FMI 04 Injector Actuation Pressure voltage low
– CID 0164 FMI 11 Injector Actuation Pressure system fault
– CID 0168 FMI 00 System Voltage High
– CID 0168 FMI 01 System Voltage Low
– CID 0168 FMI 02 System Voltage intermittent/erratic
– CID 0172 FMI 03 Intake Manifold Air Temp open/short to
– CID 0172 FMI 04 Intake Manifold Air Temp short to ground
– CID 0175 FMI 03 Engine Oil Temperature open/short to +batt
– CID 0175 FMI 04 Engine Oil Temperature short to ground
– CID 0190 FMI 02 Loss of Engine Speed Signal
– CID 0190 FMI 11 Engine Speed Sensor mechanical failure
– CID 0248 FMI 09 Cat Data Link not communicating
– CID 0253 FMI 02 Personality Module mismatch
– CID 0254 FMI 12 Electronic Control Module Error
– CID 0261 FMI 13 Engine Timing Calibration required
– CID 0262 FMI 03 5 Volt Sensor DC Power Supply short to
– CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to
– CID 0267 FMI 02 Incorrect Engine Shutdown Switch inputs
– CID 0268 FMI 02 Check Programmable Parameters
– CID 0273 FMI 03 Turbo Outlet Pressure open/short to +batt
– CID 0273 FMI 04 Turbo Outlet Pressure short to ground
– CID 0274 FMI 03 Atmospheric Pressure open/short to +batt
– CID 0274 FMI 04 Atmospheric Pressure short to ground
– CID 0291 FMI 05 Engine Cooling Fan Solenoid open circuit
– CID 0291 FMI 06 Engine Cooling Fan Solenoid short to ground
– CID 0296 FMI 09 Unable to communicate with Transmission
– CID 0342 FMI 02 Loss of Secondary Engine Speed signal
– CID 0342 FMI 03 Secondary Engine Speed open/short to +batt
– CID 0342 FMI 11 Secondary Engine Speed Sensor mechanical
– CID 0562 FMI 09 Unable to Communicate with Cat Monitoring
– CID 0600 FMI 03 Hydraulic Oil Temperature open/short to
– CID 0600 FMI 04 Hydraulic Oil Temperature short to ground
– CID 0617 FMI 05 Air Inlet Heater Relay open/current below
– CID 0617 FMI 06 Air Inlet Heater Relay grounded/current
– Coolant in Engine Oil
– Coolant Temperature Is Too High
– Diagnostic Codes
– Digital Sensor Supply Circuit – Test
– E015 High Engine Coolant Temperature Derate
– E017 High Engine Coolant Temperature Warning
– E025 High Inlet Air Temperature Derate
– E027 High Inlet Air Temperature Warning
– E039 Low Engine Oil Pressure Derate
– E053 Low Fuel Pressure Warning
– E096 High Fuel Pressure
– E100 Low Engine Oil Pressure Warning
– E190 Engine Overspeed Warning
– E272 Inlet Air Restriction Warning
– ECM Will Not Accept Factory Passwords
– ECM Will Not Communicate with Other Systems or Display
– Electrical Connectors – Inspect
– Electrical Power Supply Circuit – Test
– Electronic Display Module – If Equipped
– Electronic Service Tool Will Not Communicate with ECM
– Electronic Service Tools
– Engine Cranks but Will Not Start
– Engine Fan Control Solenoid Circuit – Test
– Engine Has Early Wear
– Engine Misfires, Runs Rough or Is Unstable
– Engine Oil in Cooling System
– Engine Oil in Exhaust System
– Engine Oil Temperature Is Too High
– Engine Pressure Sensor Open or Short Circuit – Test
– Engine Shutdown Switch Circuit – Test
– Engine Speed/Timing Sensor – Calibrate
– Engine Speed/Timing Sensor Circuit – Test
– Engine Stalls at Low RPM
– Engine Temperature Sensor Open or Short Circuit – Test
– Engine Vibration
– Engine Will Not Crank
– Engine Wiring Information
– Event Codes
– Excessive Black Smoke
– Excessive Engine Oil Consumption
– Excessive Fuel Consumption
– Excessive Valve Lash
– Excessive White Smoke
– Exhaust Temperature Is Too High
– Factory Passwords
– Flash Programming
– Fuel Dilution of Engine Oil
– Fuel in Cooling System
– How To Use the Functional Tests
– Injection Actuation Pressure – Test
– Injection Actuation Pressure Control Valve Circuit – Test
– Injection Actuation Pressure Sensor – Test
– Injector Solenoid Circuit – Test
– Intermittent Engine Shutdown
– Intermittent Low Power or Power Cutout
– Low Engine Oil Pressure
– Low Power/Poor or No Response to Throttle
– Mechanical Noise (Knock) in Engine
– Noise Coming from Cylinder
– Poor Acceleration or Response
– Programming Parameters
– Replacing the ECM
– Self-Diagnostics
– Sensors and Electrical Connectors
– System Configuration Parameters
– System Overview
– Throttle Position Sensor Circuit – Test
– Valve Rotator or Spring Lock Is Free
Troubleshooting IT38G Series II Integrated Toolcarrier and 938G Series II Wheel Loader
– Backup Alarm Always Off
– Backup Alarm Always On
– Brake System
– Charging System
– Connector Contact Description
– Connector Locations
– Diagnostic Capabilities
– Diagnostic Code List
– Differential and Final Drive
– Electrical Connector – Inspect
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– General Information
– Hydraulic System
– Machine Preparation for Troubleshooting
– MID 081 – CID 0041 – FMI 03
– MID 081 – CID 0041 – FMI 04
– MID 081 – CID 0070 – FMI 03
– MID 081 – CID 0070 – FMI 04
– MID 081 – CID 0149 – FMI 03
– MID 081 – CID 0149 – FMI 05
– MID 081 – CID 0149 – FMI 06
– MID 081 – CID 0168 – FMI 00
– MID 081 – CID 0168 – FMI 01
– MID 081 – CID 0177 – FMI 03
– MID 081 – CID 0177 – FMI 04
– MID 081 – CID 0190 – FMI 02
– MID 081 – CID 0248 – FMI 12
– MID 081 – CID 0363 – FMI 03
– MID 081 – CID 0363 – FMI 05
– MID 081 – CID 0363 – FMI 06
– MID 081 – CID 0367 – FMI 02
– MID 081 – CID 0367 – FMI 03
– MID 081 – CID 0368 – FMI 03
– MID 081 – CID 0368 – FMI 04
– MID 081 – CID 0444 – FMI 03
– MID 081 – CID 0444 – FMI 05
– MID 081 – CID 0444 – FMI 06
– MID 081 – CID 0585 – FMI 02
– MID 081 – CID 0590 – FMI 09
– MID 081 – CID 0668 – FMI 02
– MID 081 – CID 0672 – FMI 01
– MID 081 – CID 0673 – FMI 02
– MID 081 – CID 0674 – FMI 02
– MID 081 – CID 0675 – FMI 02
– MID 081 – CID 0793 – FMI 03
– MID 081 – CID 0793 – FMI 04
– MID 081 – CID 0794 – FMI 03
– MID 081 – CID 0794 – FMI 04
– MID 081 – CID 0795 – FMI 03
– MID 081 – CID 0795 – FMI 05
– MID 081 – CID 0795 – FMI 06
– MID 081 – CID 1327 – FMI 03
– MID 081 – CID 1327 – FMI 04
– MID 081 – CID 1327 – FMI 13
– MID 081 – CID 1401 – FMI 03
– MID 081 – CID 1401 – FMI 05
– MID 081 – CID 1401 – FMI 06
– MID 081 – CID 1401 – FMI 13
– MID 081 – CID 1402 – FMI 03
– MID 081 – CID 1402 – FMI 05
– MID 081 – CID 1402 – FMI 06
– MID 081 – CID 1402 – FMI 13
– MID 081 – CID 1403 – FMI 03
– MID 081 – CID 1403 – FMI 05
– MID 081 – CID 1403 – FMI 06
– MID 081 – CID 1403 – FMI 13
– MID 081 – CID 1404 – FMI 03
– MID 081 – CID 1404 – FMI 05
– MID 081 – CID 1404 – FMI 06
– MID 081 – CID 1404 – FMI 13
– MID 081 – CID 1405 – FMI 03
– MID 081 – CID 1405 – FMI 05
– MID 081 – CID 1405 – FMI 06
– MID 081 – CID 1405 – FMI 13
– MID 081 – CID 1406 – FMI 03
– MID 081 – CID 1406 – FMI 05
– MID 081 – CID 1406 – FMI 06
– MID 081 – CID 1406 – FMI 13
– MID 081 – CID 1521 – FMI 03
– MID 081 – CID 1521 – FMI 04
– MID 081 – CID 1716 – FM 03
– MID 081 – CID 1716 – FM 06
– MID 081 – CID 1721 – FM 03
– MID 081 – CID 1721 – FM 06
– Operational Checks (Brake System)
– Operational Checks (Hydraulic System)
– Operational Checks (Power Train)
– Operational Checks (Steering System)
– Service Tools
– Steering System
– Switch Circuits
– System Schematic
– Torque Converter
– Transmission
– Transmission Control (Shift Lever)
– Using Caterpillar Electronic Technician to Determine
– Visual Inspection
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Work Area Visual System
– Component Description
– Configuration
– Electrical Connector – Inspect
– General Information
– General Information
– Modes of Operation
– Service Tools
– System Schematic
– System Tests
– Troubleshooting
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