Key facts
- Manuals
- 4
- Languages
- EN
- Last added
- 2026-10-18
Featured Onan manuals
Onan HDZAA (Spec F) Generator Set Installation Manual
This document serves as the official installation guide for the Onan Generator Set model HDZAA (Spec F), designed specifically for recreational vehicle applications. It outlines critical safety precautions regarding exhaust gases, electrical hazards, and fuel handling before beginning work.
The manual details the procedures for selecting an appropriate location, mounting the unit to the vehicle frame, and establishing necessary connections for ventilation, exhaust, fuel, and electricity. It also includes a section on installation review and startup testing.
Covers: Safety Precautions · Introduction · Location, Mounting, and Ventilation · Exhaust Connections · Fuel Connections · Electrical Connections
Onan Marquis 7NHM-FA Genset Operator's Manual
This document serves as the Operator's Manual for the Marquis BGM and NHM series of generator sets (gensets), specifically covering the 7NHM-FA model. It provides essential information on safety precautions, component locations, and basic operation procedures such as starting and stopping the engine. The guide also details fuel and oil recommendations, battery care, and instructions for powering equipment connected to the genset.
Covers: Safety Precautions · Fuel Recommendations · Engine Oil Recommendations · Starting Batteries · Component Locations · Genset Control Panel
Onan MDKAD/MDKAE/MDKAF Generator Set Service Manual
This manual provides troubleshooting and repair data for the engine controls, generator, exhaust system, and cooling system of Onan MDKAD, MDKAE, and MDKAF generator sets. It includes basic wiring diagrams and schematics for troubleshooting purposes.
Covers: Safety Precautions · Introduction · Engine Controls · Engine Control Service · Generator/Voltage Regulator · Generator/Regulator Troubleshooting
Onan HGJAA/HGJAB/HGJAC Generator Set Parts Manual
This document serves as a parts manual for Onan generator sets designated for RV use. It covers specific model series including HGJAA, HGJAB, and HGJAC, detailing various specifications such as fuel type (Gasoline or LP), voltage, and phase. The manual includes a comprehensive data table linking model numbers to wiring diagrams and fuel types.
Covers: Introduction · Generator Set Data Table · Parts List Index · Engine Components · Fuel System · Electrical Components
Latest Onan manuals
Onan HDZAA (Spec F) Generator Set Installation Manual
Installation Guide 34 pages · 775 KB · ENThis manual provides installation instructions for the Onan HDZAA (Spec F) generator set intended for RV use, covering location, mounting, and connections.
Onan Marquis 7NHM-FA Genset Operator's Manual
User Manual 31 pages · 365 KB · ENThis manual covers the operation, maintenance, and troubleshooting of the Onan Marquis 7NHM-FA generator set, including safety precautions and specifications.
Onan MDKAD/MDKAE/MDKAF Generator Set Service Manual
Service Manual 68 pages · 1.7 MB · ENService manual for Onan MDKAD, MDKAE, and MDKAF generator sets covering engine controls, generator, exhaust, and cooling systems.
Onan HGJAA/HGJAB/HGJAC Generator Set Parts Manual
Parts List 70 pages · 2.5 MB · ENOriginal parts manual for Onan HGJAA, HGJAB, and HGJAC generator sets for RV applications, covering specifications and component lists.
Which document do I need?
Installation Guide
Mounting, wiring and first power-up. Read it before the hardware goes in.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Service Manual
Disassembly, diagnostics and part numbers, for repair.
Questions answered in Onan manuals
What are the minimum clearance requirements for the generator set enclosure?
The enclosure must provide at least 0.61 inch (15.5 mm) clearance at the top and all sides except the right side, which requires 3.5 inch (89 mm) clearance in front of the air inlet.
What type of insulation is required for the generator compartment?
The acoustic/thermal insulation and adhesive must be rated as 'Self-Extinguishing,' and the bottom should not be lined with absorbent materials.
What type of gasoline should be used?
Use clean, fresh unleaded gasoline having a minimum octane rating of 87.
How should the battery be disconnected?
Always disconnect the negative (-) battery cable first and reconnect it last to reduce arcing.
What generator set models does this manual cover?
This manual provides troubleshooting and repair data for the MDKAD, MDKAE, and MDKAF generator sets.
What equipment is required to perform the tests described in this manual?
The required test equipment includes a multimeter, AC voltmeter, DC voltmeter, frequency meter, and a load test panel.