ContentsivService Manual – Advance 7765 / Nilfisk CR1500Engine System, Diesel 77Functional Description 77Overview 77Diesel Engine Wiring Diagram 77Circuit Description 78Component Locations 78Maintenance and Adjustments 82Engine Oil 82Engine Coolant 82Checking Engine Coolant 82Replacing Engine Coolant 83Engine Air Filter Maintenance 84Troubleshooting 84General Troubleshooting 84Engine Overheating Problems 85Loss of Oil Pressure Protection 86Specifications 86Special Tools 87Engine System, Gasoline/LPG 88Functional Description 88Overview 88GM Engine Wiring Diagram 88Circuit Description 89GM 3.0L Gasoline Fuel System Description 89GM 3.0L LPG Fuel System Description 89Component Locations 90LPG and Gasoline 90LPG 94Gasoline 96Firing Order and Plug Wire Routing 97Maintenance and Adjustments 97Engine Oil 97Engine Coolant 98Checking Engine Coolant 98Replacing Engine Coolant 98Engine Air Filter Maintenance 99Troubleshooting 100General Troubleshooting 100Engine Overheating Problems 100Loss of Oil Pressure Protection 101Engine Diagnostics 101To Access the Engine Diagnostic Information Using the Controller Interface Kit and aPC 101To Access the Engine DTC Error Codes Manually 103Diagnostic Trouble Code (DTC) Chart – Sorted by DTC Number 104Specifications 108Engine Specifications 108Special Tools 109Hopper System 110Functional Description 110Overview 110Hopper – Manual Dump Machines 110Hopper – Variable Dump Machines 111Hopper System Wiring Diagram – Variable Dump Machine 113Electrical Circuit Description – Variable Dump Machine 113
