Section i - Introduction General Repair Instructions M11 Page i-9 General Repair Instructions This engine incorporates the latest diesel technology at the time it was manufactured; yet, it is designed to be repaired using normal repair practices performed to quality standards. Cummins Engine Company, Inc. does not recommend or authorize any modifications or repairs to engines or components except for those detailed in Cummins Service Information. In particular, un- authorized repair to safety-related components can cause personal injury or death. Below is a partial listing of components classified as safety-related:
Air Compressor Air Controls Air Shutoff Assemblies Balance Weights Cooling Fan Fan Hub Assembly Fan Mounting Bracket(s) Fan Mounting Capscrews Fan Hub Spindle Flywheel Flywheel Crankshaft Adapter Flywheel Mounting Capscrews Fuel Shutoff Assemblies Fuel Supply Tubes Lifting Brackets Throttle Controls Turbocharger Compressor Casing Turbocharger Oil Drain Line(s) Turbocharger Oil Supply Line(s) Turbocharger Turbine Casing Vibration Damper Mounting Capscrews Follow All Safety Instructions Noted in the Procedures. - Follow the manufacturer’s recommendations for cleaning solvents and other substances used during the repair of the engine.
Some solvents and used engine oil have been identified by government agencies as toxic or carcinogenic. Avoid excessive breathing, injestion and contact with such substances. Always use good safety practices with tools and equipment. Provide A Clean Environment and Follow the Cleaning Instructions Specified in the Procedures - The engine and its components must be kept clean during any repair. Contamination of the engine or components will cause premature wear. Perform the Inspections Specified in the Procedures.
Replace all Components or Assemblies Which are Damaged or Worn Beyond the Specifications Use Genuine Cummins New or ReCon W Service Parts and Assemblies - The assembly instructions have been written to use again as many components and assemblies as possible. When it is necessary to replace a component or assembly, the procedure is based on the use of new Cummins or Cummins ReCon W components. All of the repair services described in this manual are available from all Cummins Distributors and most Dealer locations. Follow The Specified Disassembly and Assembly Procedures to Avoid Damage to the Components.
Complete rebuild instructions are available in the shop manual which can be ordered or purchased from a Cummins Authorized Repair Location. Refer to Section L, Literature, for ordering instructions. Welding on a CELECT™Controlled Vehicle Caution: When welding on a CELECT™controlled vehicle, to protect the ECM computer circuits, the procedure below MUST be followed: 1. Remove all three connectors going to the ECM. 2. Disconnect the negative (-) and positive (+) battery cables from the battery. 3. Do NOT connect the welder ground cable to any part of the CELECT™control system.