ELECTRICAL SYSTEM
It was found that a wrong relay was installed in the starting circuit of the engine for the YT DOT vehicles. The relay swiches a 12 volt circuit, but is operated via 24 volt. Currently a 12 volt relay is installed. Over time this relay can fail due to the applied current on the coil being too high. This can result in failure of the relay, and cause a malfunction during the starting attempt of the engine.