TM 5-2420-230-24-2
General Repair Instructions
Section i - Introduction
Page i-10
B Series
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.
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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
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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
Service Parts and Assemblies
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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 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.
L-75
