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Metal Detectors => Metal Detecting Accessories => Topic started by: Mrs Steptoe on October 09, 2015, 11:45:52 AM



Title: Inside a coil
Post by: Mrs Steptoe on October 09, 2015, 11:45:52 AM
 Has anyone opened a coil and made a repair?
 My trusty Minelab small eliptical coil is sounding off all the time and I'm wondering if there is a loose wire inside.(not surprising with all the bashing it has had from stubble recently).I've tried taking off the cover and thoroughly cleaning cover and plate in case some small piece of metal or mineral was trapped,but still the problem.Is it possible to access the inside or is it sealed?
  I've nothing to lose as it is useless as it is,but before I consign the warhorse to a hero's grave  :'(,I'd like to see if something could be done.
      Any advice and experience welcome.
             Thanks for reading.
                                               Mrs.S.


Title: Re: Inside a coil
Post by: Cymro on October 09, 2015, 12:12:21 PM
Have you checked that your 'standard' coil isn't showing the same symptoms? If it is you could pretty much rule coil problems out.

Coils are sealed, so I'd start by looking at the plug end of it - that'd be the likeliest place for loose wires and there's more potential for damage at that end. Could be a dry solder joint.  If you've got a multimeter you could check for continuity from the plug  - you should find that two pairs of terminals will be connected as there's a transmitting coil and a receiving coil.

Just a thought before you go hacking into the search head itself.


Title: Re: Inside a coil
Post by: Mrs Steptoe on October 09, 2015, 12:45:00 PM
 Thanks Cymro,I'll give that a try.
The standard coil works fine.


Title: Re: Inside a coil
Post by: Chef Geoff on October 09, 2015, 12:59:15 PM
No point opening as you'll find loads of epoxy in there so difficult to track down, the elliptical is only water resistant and not waterproof but my suspicion would be with the coil plug as this is the main culprit on the majority of machines, if you have a pair of pliers or better still mole grips handy then you can try pinching the locking nut that attaches the coil to the machine remember though that you don't want to squash it just pinch this should tighten up the "earth" connection which can cause false signals when swinging.
I should have asked does it sound off when not moving?


Title: Re: Inside a coil
Post by: Mrs Steptoe on October 09, 2015, 02:06:18 PM
  Hi Geoff-it only sounds off when moved,but will keep going even after the machine is stationary.I've been moving the connecting wire about from the control box downwards to the coil and it seems the problem is where the wire joins the coil-that big rubbery section.


Title: Re: Inside a coil
Post by: Chef Geoff on October 09, 2015, 02:15:57 PM
Ouch! it does sound as if the brake is had the bottom strain relief then, you could email minelab but I think it's a goner  :-\


Title: Re: Inside a coil
Post by: Mrs Steptoe on October 09, 2015, 02:48:17 PM
 Ah,right.Same thing happened to an iron of mine. :(
 Oh well-thanks Geoff and Cymro for your help. Sad,but nothing lasts forever.  Christmas coming up soon tho'........ ;)


Title: Re: Inside a coil
Post by: Cymro on October 09, 2015, 04:23:24 PM
 Christmas coming up soon tho'........ ;)

What!!?? I told my daughter Santa was dead years ago . . .  ;)


Title: Re: Inside a coil
Post by: dingdong on October 09, 2015, 04:55:57 PM
BORN AGAIN SANTA!!!!!!!!YA HOOOOOOOOoooooooo🎅👍


Title: Re: Inside a coil
Post by: Mrs Steptoe on October 09, 2015, 06:37:40 PM
 Santa alive and kicking in our household. ;) I just have to be nice to him. :-*


Title: Re: Inside a coil
Post by: Cymro on October 10, 2015, 06:15:56 AM
I just have to be nice to him. :-*

How nice do you have to be to Santa to get a coil for Christmas . . .  ??? :o

When Santa was still alive and visiting our house all I he used to get was a mince pie and a small glass of Scotch milk . . .  :(


Title: Re: Inside a coil
Post by: Mrs Steptoe on October 10, 2015, 07:45:14 AM
   As nice as he wants me to be ;)


 When Santa was still alive and visiting our house all I he used to get was a mince pie and a small glass of Scotch milk . . .  Sad     
     Ah-you see,that's where you're going wrong........


Title: Re: Inside a coil
Post by: Cymro on October 10, 2015, 09:17:09 AM
   As nice as he wants me to be ;)

Mrs Steptoe!!  :o

Does Mr Steptoe know about this disgraceful behaviour . . . ??

If that's what it takes to get a new coil for Christmas I think I'll start saving up for one. I'll have you know I'm a happily married man  ;)


Title: Re: Inside a coil
Post by: dingdong on October 10, 2015, 06:04:40 PM
Why don't you take out some insurance on these coils ??you know,
COIL COVER !!!!LOL!!  ;D ;)


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