Cummins ISF3.8 CM2220, CM2220-AN, CM2220-IAN Engine Workshop Service Repair Manual

This is a service and repair manual for the Cummins ISF3.8 CM2220, CM2220-AN, CM2220-IAN Engine. It is written for people who do the work themselves — workshop mechanics and owners who prefer to do their own servicing alike — and collects the procedures, specifications and test information you need in one searchable document.

What's inside

• Complete disassembly and reassembly procedures
• Cylinder head, block, crankshaft, and piston service
• Common-rail fuel system service
• Cooling and lubrication systems
• Torque specifications and service limits
• CM2220 electronic control system reference (all three sub-variants)

Models covered

• ISF3.8 (CM2220
• CM2220-AN
• CM2220-IAN)

User help

1. Check the fit first. Compare your model and serial number with the coverage shown above. If you are unsure, message us with those details before ordering and we will help you confirm.
2. Get the file. The product is a digital download delivered for Windows-compatible use. Nothing is shipped.
3. Work step by step. Read the safety notes for a procedure before you start, follow the stated torque values and sequences, and use the specification and test sections to confirm a fault before replacing parts.
4. Stay safe. Repairs on engines, hydraulics, fuel and electrical systems can be dangerous. Follow the safety instructions in the document, use proper tools and support equipment, and follow local regulations.

Cummins and all model names are trademarks of their respective owners and are used here only to identify compatibility. This store is an independent seller and is not affiliated with or endorsed by Cummins. For informational and maintenance use.