Ida 71

zepp · 2nd October 2005, 21:30

Is there anybody diving an IDA 71 that is modified or not on this site? Any info on this unit would be appriciated. I am especially looking for a manual in English if you know of a wherabouts.

GKAM · 2nd October 2005, 22:39

PM sent.

The English IDA71 manual is available from http://www.therebreathersite.nl/downloads.htm

I also have the original Russian one in .pdf if you like.

Thx,
GKAM

Underwaterbear · 3rd October 2005, 04:38

Now that's how you write an owners' manual. Leave out the BS liability limiting motherhood statements, describe how the unit works in full detail and include lots of the important stuff like spec sheets, exploded diagrams, o-ring specs etc...that would actually help you strip and service the rig without having to send it halfway around the globe and risk damage etc just to let the factory rip you blind.

I wish more manuals were like that.

Bear · 3rd October 2005, 05:47

Quote: (Originally Posted by Underwaterbear)

that would actually help you strip and service the rig without having to send it halfway around the globe and risk damage etc just to let the factory rip you blind.

I wish more manuals were like that.

You sound a little bitter??

Cheers

Skipbreather · 3rd October 2005, 15:10

Quote: (Originally Posted by zepp)

Is there anybody diving an IDA 71 that is modified or not on this site? Any info on this unit would be appriciated. I am especially looking for a manual in English if you know of a wherabouts.

Hi Zepp-

Just where are you in your IDA71 “journey”? Planning/ contemplating? Have an unmodified rig you’re planning to convert? Diving one in some modified/ unmodified form?

I see you’ve already been given the manual link. That’s a good start. Once you study it carefully you will most likely see that the procedures by which the Russian military operated this rig would be considered downright dangerous by the vast majority of today’s Rebreather divers. The only way to safely dive an UNMODIFIED unit is to treat it as a pure O2 rig, using all appropriate O2 CCR procedures and limitations.

Best,
Ken

GKAM · 3rd October 2005, 16:01

Quote: (Originally Posted by Skipbreather)

... The only way to safely dive an UNMODIFIED unit is to treat it as a pure O2 rig, using all appropriate O2 CCR procedures and limitations.

Yes, never even consider using the offboard EAN40 unit with western scrubber material in both canisters! You need one canister to be filled with potassium hyperoxide to generate O2 for the system once you are passed 12/14m (this is approx. where the hydrostatic valve kicks in and flushes the loop with nitrox). If you use regular stuff in both canisters you will go hypoxic very fast. btw, potassium hyperoxide is the same stuff used in the OBA you were asking about in a different post.

Also, remember that the IDA71 has zero tolerance for water in the loop since there is no water trap but Ken has some cool suggestions about how to incorporate one.

GKAM

seippel · 3rd October 2005, 18:58

Hi, I do not dive this unit any more but there are some information on how to modify it on my site at www.seippel.nu. Look under Rebreathers->My rebreathers->SMIDA the CCR.

/Peder

zepp · 4th October 2005, 00:25

Quote: (Originally Posted by GKAM)

Yes, never even consider using the offboard EAN40 unit with western scrubber material in both canisters! You need one canister to be filled with potassium hyperoxide to generate O2 for the system once you are passed 12/14m (this is approx. where the hydrostatic valve kicks in and flushes the loop with nitrox). If you use regular stuff in both canisters you will go hypoxic very fast. btw, potassium hyperoxide is the same stuff used in the OBA you were asking about in a different post.

Also, remember that the IDA71 has zero tolerance for water in the loop since there is no water trap but Ken has some cool suggestions about how to incorporate one.

GKAM

I do understand the limitations of the unmodified rig (bet you are glad about that) I have also realised about the lack of water/condensate trap, so would be interested in 'Kens' suggestions. Correct me if I am wrong, but I was thinking of reversing the scrubber, so that the expired gas would first travel to the base of the unit where I could remove the plug and make a screw on trap instead. This I believe would catch any moisture before travelling through the 'lime.

zepp · 4th October 2005, 00:28

Quote: (Originally Posted by Skipbreather)

Hi Zepp-

Just where are you in your IDA71 “journey”? Planning/ contemplating? Have an unmodified rig you’re planning to convert? Diving one in some modified/ unmodified form?

Best,
Ken

i have a unit that is totally unused , well until I trid it in the pool tonight. It has all the original tools and every spare part you can think of. I am planning to convert it, probably keeping just the case, ONE scrubber, the lung and various bits of pipes and plumbing.

**nigelh** · 4th October 2005, 08:47

Quote: (Originally Posted by Underwaterbear)

Now that's how you write an owners' manual.
...
I wish more manuals were like that.

IDA64A would be really nice.

I've been diving it on guesswork for 18 months now and it hasn't killed me yet.

2nd October 2005, 21:30	#1 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 276	Ida 71 Is there anybody diving an IDA 71 that is modified or not on this site? Any info on this unit would be appriciated. I am especially looking for a manual in English if you know of a wherabouts.
(Offline)

2nd October 2005, 22:39	#2 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 252	PM sent. The English IDA71 manual is available from http://www.therebreathersite.nl/downloads.htm I also have the original Russian one in .pdf if you like. Thx, GKAM
(Offline)

3rd October 2005, 04:38	#3 (permalink)
Underwaterbear A Prismer in Megland Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: May 2005 Location: Seattle, WA Posts: 190	Now that's how you write an owners' manual. Leave out the BS liability limiting motherhood statements, describe how the unit works in full detail and include lots of the important stuff like spec sheets, exploded diagrams, o-ring specs etc...that would actually help you strip and service the rig without having to send it halfway around the globe and risk damage etc just to let the factory rip you blind. I wish more manuals were like that.
(Offline)

3rd October 2005, 05:47	#4 (permalink)
Bear Smelling Dairy Air Current Rebreather/s: Other CCR Dolphin Home Build Not Bought Yet Other Rebreather/s: Other CCR Dolphin Home Build Not Bought Yet Join Date: Apr 2005 Location: Melbourne, Australia Posts: 101	Quote: (Originally Posted by Underwaterbear) that would actually help you strip and service the rig without having to send it halfway around the globe and risk damage etc just to let the factory rip you blind. I wish more manuals were like that. You sound a little bitter?? Cheers __________________ http://www.victech.org VICTECH.ORG: A web resource for Technical Divers in Victoria
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3rd October 2005, 15:10	#5 (permalink)
Skipbreather Reads the fine print Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet MK 15.X Home Build Join Date: Mar 2005 Location: Chicago, Illinois, USA Posts: 555	Quote: (Originally Posted by zepp) Is there anybody diving an IDA 71 that is modified or not on this site? Any info on this unit would be appriciated. I am especially looking for a manual in English if you know of a wherabouts. Hi Zepp- Just where are you in your IDA71 “journey”? Planning/ contemplating? Have an unmodified rig you’re planning to convert? Diving one in some modified/ unmodified form? I see you’ve already been given the manual link. That’s a good start. Once you study it carefully you will most likely see that the procedures by which the Russian military operated this rig would be considered downright dangerous by the vast majority of today’s Rebreather divers. The only way to safely dive an UNMODIFIED unit is to treat it as a pure O2 rig, using all appropriate O2 CCR procedures and limitations. Best, Ken
(Offline)

3rd October 2005, 16:01	#6 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 252	Quote: (Originally Posted by Skipbreather) ... The only way to safely dive an UNMODIFIED unit is to treat it as a pure O2 rig, using all appropriate O2 CCR procedures and limitations. Yes, never even consider using the offboard EAN40 unit with western scrubber material in both canisters! You need one canister to be filled with potassium hyperoxide to generate O2 for the system once you are passed 12/14m (this is approx. where the hydrostatic valve kicks in and flushes the loop with nitrox). If you use regular stuff in both canisters you will go hypoxic very fast. btw, potassium hyperoxide is the same stuff used in the OBA you were asking about in a different post. Also, remember that the IDA71 has zero tolerance for water in the loop since there is no water trap but Ken has some cool suggestions about how to incorporate one. GKAM
(Offline)

3rd October 2005, 18:58	#7 (permalink)
seippel New Member Current Rebreather/s: Sport Kiss Other Rebreather/s: Not Bought Yet Classic Kiss Join Date: Aug 2005 Location: Sweden Posts: 7	Hi, I do not dive this unit any more but there are some information on how to modify it on my site at www.seippel.nu. Look under Rebreathers->My rebreathers->SMIDA the CCR. /Peder
(Offline)

4th October 2005, 00:25	#8 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 276	Quote: (Originally Posted by GKAM) Yes, never even consider using the offboard EAN40 unit with western scrubber material in both canisters! You need one canister to be filled with potassium hyperoxide to generate O2 for the system once you are passed 12/14m (this is approx. where the hydrostatic valve kicks in and flushes the loop with nitrox). If you use regular stuff in both canisters you will go hypoxic very fast. btw, potassium hyperoxide is the same stuff used in the OBA you were asking about in a different post. Also, remember that the IDA71 has zero tolerance for water in the loop since there is no water trap but Ken has some cool suggestions about how to incorporate one. GKAM I do understand the limitations of the unmodified rig (bet you are glad about that) I have also realised about the lack of water/condensate trap, so would be interested in 'Kens' suggestions. Correct me if I am wrong, but I was thinking of reversing the scrubber, so that the expired gas would first travel to the base of the unit where I could remove the plug and make a screw on trap instead. This I believe would catch any moisture before travelling through the 'lime.
(Offline)

4th October 2005, 00:28	#9 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 276	Quote: (Originally Posted by Skipbreather) Hi Zepp- Just where are you in your IDA71 “journey”? Planning/ contemplating? Have an unmodified rig you’re planning to convert? Diving one in some modified/ unmodified form? Best, Ken i have a unit that is totally unused , well until I trid it in the pool tonight. It has all the original tools and every spare part you can think of. I am planning to convert it, probably keeping just the case, ONE scrubber, the lung and various bits of pipes and plumbing.
(Offline)

4th October 2005, 08:47	#10 (permalink)
nigelh New Member Current Rebreather/s: Inspiration Vision Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Mar 2005 Location: Brighton, Sussex, UK Posts: 835	Quote: (Originally Posted by Underwaterbear) Now that's how you write an owners' manual. ... I wish more manuals were like that. IDA64A would be really nice. I've been diving it on guesswork for 18 months now and it hasn't killed me yet. __________________ nigelh
(Online)

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