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Chris Gholson

Coil Maintenance Tips

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Coil Maintenance Tips: The search coil is the part of the metal detector that is swung over the ground, and as you can imagine, it receives the most abuse. Coils are tough, but like any piece of equipment they must be maintained to ensure proper function. Here are a few tips to help you get the best performance and extend the coil’s life:

1. The coil connector will become corroded over time. This buildup is easily removed with any over the counter Control/Contact Cleaner & Lubricant (see photo). Simply spray into the connector and wipe away any excess liquid.

2. Most coils include a skid plate on the bottom. This skid is there to protect the coil as you scrape it over rocks and dirt. Always inspect the skid prior to use and replace before wearing through (see photo). Failure to maintain the skid can void the coil’s warranty, and in time will eventually damage the coil itself. Keep in mind that it is much cheaper to replace a skid versus a coil.

3. Periodically remove your coil’s skid plate and dump out any dirt and black sands that have accumulated. This will help reduce the likelihood of false signals.

4. It is our recommendation that the coil cable wire be strung straight from the coil up the lower shaft, then held in place with either our coil cable clips, Velcro strips, or tape. Once you reach the “knuckle” or screw cap, the coil cable wire can then be wrapped along the upper shaft and finally inserted into the detector’s control box. Ensure that the connector is properly seated before tightening.

5. Most coils are fairly water resistant, however the drier it stays, the longer it will last. Unless designated as water-proof, a coil should not be washed with a pressurized hose. A soft brush and damp rag are recommended for cleaning.

If anyone else has any tips they'd like to share please do so.…Happy hunting everyone! 

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