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| | #1 (permalink) |
| New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: POOLE
Posts: 62
| AP ADV failure Help!! Hi all, Can someone please offer me a little help or advice here. I am despertly trying to finish my Inspiration mod 1 after a huge catalogue of problems. I will share all of my experiences when I eventually either finish the course or give up and take a large hammer to my unit. The latest issue to set me back occurred this week. I was prepping the unit for two days diving at Vobster quarry in Somerset which would have finished my course. On Thursday evening I assembled the unit, clibrated it and the 4th cell & everything seemed ok. I then put the unit in a pos test. No joy, it wouldnt hold. I eventually found a small leak at the cell holder (Head just back from AP), duly tightened and check & it still wont hold pos. Took forever to check, clean & lub every connection & O ring. Still no joy. Eventually I find a leak from the mushroom screw where the ADV hose joins the t piece. Bt this time it is 10PM friday evening and I cant find an allen key to take it apart. I ring my instructor and we agree that it will take 2 mins to sort on Saturday morning so we will do it at Vobster. On arrival we start to set up and on putting an Allen key to the mushroom screw we find the whole thing is rotating and there is a hard little piece of metal poking out at the diaphram of the purge side of the T piece. The diapram is punctured This of course meant me sitting in the rain at Vobster whilst my instructor and fellow student did their dives as we all travelled together. Not a happy tree frog :-( Now I presume the mushroom valve is there to allow the thing to be taken apart to replace hoses etc? HaVe I done something wrong? Has this happened to anyone else? Can this be repaired by Ap or anyone else? Help!!! I really am at the end of my tether with this unit. ![]() Last edited by onthetrain : 14th January 2007 at 11:20. |
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| | #2 (permalink) |
| designer of death Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Mar 2006 Location: kerman,california
Posts: 372
| Re: AP ADV failure Help!! I "assume" that this is a used unit. ap adv are known for leaking but with proper servicing they are a decent piece for gear. Welcome to the teething problems that we all have. i know that it s--ks to lose a dive, much less a cert dive. but this will give you the opportunity to tear your unit down and find what ever problems are associated with it. if you are not the mechanical type go by some more twin sets, else fix the thing test it and go have some fun. rick |
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| | #3 (permalink) |
| New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: POOLE
Posts: 62
| Re: AP ADV failure Help!! I "assume" that this is a used unit. ap adv are known for leaking but with proper servicing they are a decent piece for gear. Welcome to the teething problems that we all have. i know that it s--ks to lose a dive, much less a cert dive. but this will give you the opportunity to tear your unit down and find what ever problems are associated with it. if you are not the mechanical type go by some more twin sets, else fix the thing test it and go have some fun. Yes, it is a used unit. rick Trust me when I say that I am fast becoming conversant with the problems and teething issues I will stick with it, just getting frustrated as it has already taken me over 2 months to complete MOD1 due to unit problems. For example the unit head has just been rewired, new cells etc etc!! To be fair the unit has not cost me anything in repair bills as the previous owner was good to his word in terms of sorting out any issues that arose. Problem is I wanna go diving. I dont want to be stuck in the garage sorting out faults! I'll get there though ![]() |
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| | #4 (permalink) |
| RBW Member Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent
Posts: 2,825
| Re: AP ADV failure Help!! Hi all, Can someone please offer me a little help or advice here. I am desperately trying to finish my Inspiration mod 1 after a huge catalogue of problems. I will share all of my experiences when I eventually either finish the course or give up and take a large hammer to my unit. The latest issue to set me back occurred this week. I was prepping the unit for two days diving at Vobster quarry in Somerset which would have finished my course. On Thursday evening I assembled the unit, clibrated it and the 4th cell & everything seemed ok. I then put the unit in a pos test. No joy, it wouldnt hold. I eventually found a small leak at the cell holder (Head just back from AP), duly tightened and check & it still wont hold pos. Took forever to check, clean & lub every connection & O ring. Still no joy. Eventually I find a leak from the mushroom screw where the ADV hose joins the t piece. Bt this time it is 10PM friday evening and I cant find an allen key to take it apart. I ring my instructor and we agree that it will take 2 mins to sort on Saturday morning so we will do it at Vobster. On arrival we start to set up and on putting an Allen key to the mushroom screw we find the whole thing is rotating and there is a hard little piece of metal poking out at the diaphram of the purge side of the T piece. The diapram is punctured This of course meant me sitting in the rain at Vobster whilst my instructor and fellow student did their dives as we all travelled together. Not a happy tree frog :-( Now I presume the mushroom valve is there to allow the thing to be taken apart to replace hoses etc? HaVe I done something wrong? Has this happened to anyone else? Can this be repaired by Ap or anyone else? Help!!! I really am at the end of my tether with this unit. ![]() The metal work behind the mushroom nut is basically the internals of a regulator. The metal bit sticking out is what the diaphragm pushes against to operate the ADV rather like the purge on a regulator. Its fairley easy to replace the diaphragm but it sounds like the plastic mounting of the ADV has sheared off and is allowing the internals to rotate. To remove the diaphragm there is a delicate ring under the black AP cover which rotates and unscrews to release the cover and the diaphragm. Its not obvious so be careful or get someone to show you how. Frankly i am surprised you instructor didn't show / explain all this to you. You have the choice now of botching a repair on the ADV using aroldite or replacing the whole ADV which is outrageously expensive. The Mushroom bolt had been overtightened and this no doubt is the cause of the damage. The bolt should only be nipped up as it relies on an O ring to seal it not crushing pressure on the bolt. For future reference don't take the hose off by undoing the mushroom bot unless you absolutely have to . Best to remove it by unscrewing the flow stop. Sadly this is user error but for the money you pay for an ADV they should be better built as this is a common mistake.
__________________ See my "Doing It Chasey" video where I'm locked into a padded room, naked, with two ball bearings and within an Hour, I manage to lose one and break the other!!! Kevin Juergensen 16/11/08 [/quote] |
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| | #5 (permalink) |
| New Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Dec 2005 Location: POOLE
Posts: 62
| Re: AP ADV failure Help!! The metal work behind the mushroom nut is basically the internals of a regulator. The metal bit sticking out is what the diaphragm pushes against to operate the ADV rather like the purge on a regulator. Its fairley easy to replace the diaphragm but it sounds like the plastic mounting of the ADV has sheared off and is allowing the internals to rotate. To remove the diaphragm there is a delicate ring under the black AP cover which rotates and unscrews to release the cover and the diaphragm. Its not obvious so be careful or get someone to show you how. Frankly i am surprised you instructor didn't show / explain all this to you. You have the choice now of botching a repair on the ADV using aroldite or replacing the whole ADV which is outrageously expensive. The Mushroom bolt had been overtightened and this no doubt is the cause of the damage. The bolt should only be nipped up as it relies on an O ring to seal it not crushing pressure on the bolt. For future reference don't take the hose off by undoing the mushroom bot unless you absolutely have to . Best to remove it by unscrewing the flow stop. Sadly this is user error but for the money you pay for an ADV they should be better built as this is a common mistake. Mark, Thanks for the info. Unfortuantely I have to assume that the internal gubbings have sheared as the whole lot is rotating Does the black AP cover just pop out so I can have a look. My instructor has spent days with me playing and maintaining the unit. We had actually been working on it together for a couple of hours earlier that evening and thought we had it sorted when we found the leak at the cell holder. I'll have to think about my next step as frankly I dont want to splash out another couple of hundred for a new ADV at the moment. I may go back to an old T piece and fly manual for a bit, at least until I get the course finished. Anyone got an old style T pice and hose they want to sell? |
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| | #6 (permalink) |
| RBW Member Current Rebreather/s: Inspiration Classic Inspiration Vision Evolution Sport Kiss Classic Kiss Dolphin Ray Azimuth Home Build Other Rebreather/s: Dolphin Ray Azimuth Home Build Join Date: May 2005 Location: UK
Posts: 659
| Re: AP ADV failure Help!! I live in Poole (well bournemouth but its onl;y next door) I am happy to help if I can drop me a pm and I will give you a phone number if you want best Dave |
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| | #7 (permalink) |
| Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Oct 2005 Location: Cumbria UK
Posts: 231
| Re: AP ADV failure Help!! I did exactly the same thing, attempted to take the ADV to bits the internals rotated and put the lever through the diaphragm. I rang up AP and they told me how to replace the diaphragm and sent me the parts free of charge. Had it all up and running the next day. Simon |
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| | #8 (permalink) |
| RBW Member Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Join Date: Apr 2005 Location: Manchester UK
Posts: 378
| Re: AP ADV failure Help!! Sorry to hear of all your problems . I did my mod1 in the red sea and used there box , If it had a problem then they had to fix it , One of the main reasons I did not want to do mod1 in uk well that and the cold crap weather , Cost me the same money over sea s and no need to worry about my unit, Just had to tune up and have fun , Hope you get your self sorted soon,
__________________ Steve G Apparently not the only gay diver in the village ![]() http://drinkingliberally.org/blogs/o...nzee-glock.gif http://www.scubatunes.com/audio/vol01/mp3/HiTech.mp3 Last edited by Gobfish1 : 15th January 2007 at 00:56. |
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| | #10 (permalink) |
| Custom Title Allowed! Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Nov 2005 Location: London
Posts: 449
| Re: AP ADV failure Help!! Hi all, I am really not trying to unkind when I suggest that if you don't really know what you're doing it's best to find someone who does Can someone please offer me a little help or advice here. I am despertly trying to finish my Inspiration mod 1 after a huge catalogue of problems. I will share all of my experiences when I eventually either finish the course or give up and take a large hammer to my unit. The latest issue to set me back occurred this week. I was prepping the unit for two days diving at Vobster quarry in Somerset which would have finished my course. On Thursday evening I assembled the unit, clibrated it and the 4th cell & everything seemed ok. I then put the unit in a pos test. No joy, it wouldnt hold. I eventually found a small leak at the cell holder (Head just back from AP), duly tightened and check & it still wont hold pos. Took forever to check, clean & lub every connection & O ring. Still no joy. Eventually I find a leak from the mushroom screw where the ADV hose joins the t piece. Bt this time it is 10PM friday evening and I cant find an allen key to take it apart. I ring my instructor and we agree that it will take 2 mins to sort on Saturday morning so we will do it at Vobster. On arrival we start to set up and on putting an Allen key to the mushroom screw we find the whole thing is rotating and there is a hard little piece of metal poking out at the diaphram of the purge side of the T piece. The diapram is punctured This of course meant me sitting in the rain at Vobster whilst my instructor and fellow student did their dives as we all travelled together. Not a happy tree frog :-( Now I presume the mushroom valve is there to allow the thing to be taken apart to replace hoses etc? HaVe I done something wrong? Has this happened to anyone else? Can this be repaired by Ap or anyone else? Help!!! I really am at the end of my tether with this unit. ![]() I don't know what I'm doing so I will get factory to sort out my problems! Have heard too many stories of how little explorations into a unit lead to expensive disasters. Dave T should be able to help if he can. Charlie |
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