Here is the officially released Yanmar operation manual intended for use by the technical personnel directly involved in the installation of the 1GM, 2GM, 3GMD and 3HM engines produced by Yanmar, and further operation and maintenance.
There are several very useful and practical troubleshooting tips that will be appreciated by the people dealing with the periodic checks, inspections, troubleshooting and repair of these diesel engines; electrical wiring diagram has also been provided together with the method of operation, information on fuel and lube oils, storage of the engines etc.