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2. After breaking one cover, I just leave it on now. So what if there is some dirt or sand inside. It doesn't effect the performance of the detector.
3. It has not affected the performance as of yet, but I ty to clean them out periodically since the following happened.
I hunt in plowed fields quite bit and our soil is naturally sandy to begin with. I started having signals or interference from my Spectrum with no visible clues such as a power line or an abundance of iron to cause the erratic behavior. The spectrums cover is relatively easy to remove and done so and dumped a quarter of cup of sand out. It then worked fine. In that particular case with whatever was in that handful of sand...it did effect the performance to the point of beng non useable.
There could be more subtle performance changes that are occurring prior to the machine going haywire, which might prevent a certain item from being found. I just prefer to clean them once in awhile to be certain.
4. Maybe it would be easier to seal it than to remove it. I sealed my CZ-6a 8" with silicone sealant about 4 years ago and haven't had a need to remove the cover yet. The sealant has held up very well and still looks good. I used the clear variety and wiped the excess off leaving only what remained in the gap between the coil and the cover.
I tried this with my CZ-20 and it ended up getting water in the cover. I had to get a new cover after breaking the first one trying to get it off. So now I just leave it on and use no sealant to trap water inside. I'm sure it has sand in it now but we have no mineralization here to interfere with performance.
5. Have someone hold stem as close to coil as possible or put about 1/2 of coil in vice,take a blunt instrument (I use a file)and place end at top of each section of coil(working one side to the other) and tap file or whatever instrument your using gently. I've done this on several occasions and this method works fairly quickly and the coil or cover isn't damaged.
6.Dont laugh but i'll tell you what I use.I found an old tube of silicon caulking (unopened) that had dried up.I take the end of the nozzle and work it in the front center of the coil cover and just twist it around,kind of like a tire changer.Works pretty good for me and it wont hurt the coil.
7.Go get you some paint stirring sticks and put them right up against the coil and on top of the edge of the coil cover and give it some nice Raps all the way around the coil and it will come off. Since I hunt the beaches and the water all the time I have to take mine off all the time and this is the best way to do it without damanging the coil or the coil cover. Anyway hope this helps getting the coil cover off.
8.Due to the design of the coil cover, it is almost impossible to remove without breaking....it really does build up dirt under the coil. Guess if you want to clean just have to buy new cover....Thought about submerging in hot water, but thought it might damage coil. coating the inside of the cover with vaseline might work when you get ready to take off and may also keep the dirt out.
9.I
read some interesting ways of getting the coil cover off the spider
coil and decided to share with you what I did to mine. The coil
cover is there to protect the bottom of the coil from damage.
I found it was not there to keep water or sand out as mine always
got
water and sand in it anyway. After I found out how difficult it
was to get off, I did some carving and sanding to the inside surfaces
of the coil cover. I continued to try it on the coil for that
"perfect fit". Now I can grab the wide section of the
coil cover and pull it off, rinse both the coil and the cover
in the ocean and replace it. I didn't take that much plastic
off to make it work. It beats breaking the covers off. For those
that take too much off and the cover no longer fits tight, buy
a new one and start over again. They're going to have to buy one
anyway if they break it off, but they won't damage the coil in
the process.
