Onan RDJE Engine Service Repair Maintenance OVERHAUL Shop Manual SPEC. A 974-0250

This Service Manual is designed for the ONAN RDJE series engines, providing essential mechanical and electrical information required by engine mechanics for troubleshooting, servicing, repairing, or overhauling the engine.

Utilize the table of contents for quick reference to the separate engine system sections. Additionally, separate Parts Catalogs are available at the dealer level for parts identification and their proper location on assemblies.

The TROUBLESHOOTlNG GUlDE offers a quick reference for locating and correcting engine trouble. The illustrations and procedures in each section are applicable to the engines listed on the cover.

It's important to note that the front end of the engine is the flywheel end, thus determining the right and left sides by viewing the engine from the front.

The disassembly section includes major overhaul procedures for step-by-step removal, disassembly, inspection, repair, and assembly of the engine components.

Furthermore, the wiring diagram demonstrates how the electrical components are interconnected.