Automotive RPM gauges must be properly grounded to duty accurately.
Slightly loosen the bolt, wrap the wire around the threads and tighten the bolt over it securely. The battery on a boat or car is commonly grounded by connection to a piece of solid metal on the chassis or hull.
Instructions
1. Connect one end of an an automotive wire to the ground terminal on an auto gauge. Grounding system terminals may vary depending on the type of gauge. Wrap the bare wire end around the screw terminal and tighten the screw with a Phillips screwdriver, or hold the wire end against the solder terminal lug and melt solder over the wire and lug with a soldering iron.
2. Run the electrical grounding wire from the gauge to the body frame to make a good automotive ground connection. Keep the wire from touching any auto parts that heat up or move while the engine is running. Use clamps or ties to secure the wire to cool stationary parts to prevent it from dangling loosely in the engine.
3. Put the end of the electrical grounding wire next to a body frame bolt.Automotive gauges are electrical components used To gauge and Announcement movement, temperature or impact in many systems, allied an oil vigour gauge. An auto gauge has To possess at least one ability wire and one electrical grounding wire. The grounding system for automobiles and marine applications is based on connection to solid metal, or the negative terminal on the 12 volt battery.
