Lar Iii

frediver · 15th October 2006, 08:02

I'm looking for history and info on this unit?
I sure would like to obtain a maintenance and operation Manuel, anyone know of a source?
Also what would the recommended way be to give a good cleaning to the aluminum scrubber can, inside and out?
<<>>

ccr_ada · 15th October 2006, 10:34

Quote: (Originally Posted by frediver)

I'm looking for history and info on this unit?
I sure would like to obtain a maintenance and operation Manuel, anyone know of a source?
Also what would the recommended way be to give a good cleaning to the aluminum scrubber can, inside and out?
<<>>

well hello!!!

Try here

Rebreathers Worldwide

Is this what you are looking for ?

http://www.therebreathersite.nl/Zuurstofrebreathers/German/fotos_lar_ii.htm

The is all sorts have a poke around I'm sure you will find what you are looking for

CCR_ADA

Dave Sutton · 15th October 2006, 12:28

Clean scrubber with white vinegar. Works great to clean out the old powder and crap.

Just one of the endless series of LAR rigs, each particular mod for a different purchasing navy. Use of all is identical... meaning that it's time to read the US Navy Diving Manual section on 02 rebreathers and DON'T make a mistake....

Dave

frediver · 15th October 2006, 20:47

I have looked thru my current U.S.N. manuel and it refers to a seperate operation and maintenance manuel. The current online maunel only describes the basic diving procedures and limits, I might be looking in the wrong section. Also the section only refers to the LAR V and the construction of the scrubber in the LAR 3 is metal Vs. fiber/plastic as you know.My big concern was the affect vinegar,caustic chemical residue and water would have on the bare metal and mesh end screens etc.?

Dave Sutton · 15th October 2006, 23:32

Quote: (Originally Posted by frediver)

I have looked thru my current U.S.N. manuel and it refers to a seperate operation and maintenance manuel. The current online maunel only describes the basic diving procedures and limits, I might be looking in the wrong section. Also the section only refers to the LAR V and the construction of the scrubber in the LAR 3 is metal Vs. fiber/plastic as you know.My big concern was the affect vinegar,caustic chemical residue and water would have on the bare metal and mesh end screens etc.?

With all due respect: Since there aren't any parts availkable, an overhaul manual isn't much help, and all of the LAR series rigs are so simple that if you need a manual to work on it you ought to not be working on it at all.... and they so rarely (IE never) cause trouble that my reccomendation is to just see if it passes a negatice pressure test and then dive it.

Vinegar works on all scrubbers. Too mild to hurt anything.

Dave

frediver · 16th October 2006, 00:57

Thanks for the info.

Dave Sutton · 16th October 2006, 11:49

Quote: (Originally Posted by frediver)

Thanks for the info.

I don't mean to be flip, and felt bad after I quickly shot that note yesterday. Really, *all* 02 rigs are a simple reducing regulator, and a manual add valve that's little more sophisticated than a BC inflator. The LAR series uses a purge diaphagm that doubles as a crude demand regulator diaphragm. If the HP gas is being reduced to IP by the reduction regulator (and it always is, never seen even one green with corrossion not work) and the purge button adds gas then the rig works if it does not leak. I've seen military ones that were utterly crusted with dried out scrubber powder and *ugly* still work perfectly. To clean up the scrubber just brush it out with a solution of vinegar and hot water and soap. It'll clean up fine.

Freediver? Get rid 'o that rebreather! We're just loading the boat to go out to the Southwest Ledge off Block Island RI for some spearfishing. 35-50 feet deep and nothing but lungs allowed..... that's the lungs that God gave ya, no counterlungs... :-)

15th October 2006, 08:02	#1 (permalink)
frediver New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Oct 2006 Location: n.cal Posts: 9	Lar Iii I'm looking for history and info on this unit? I sure would like to obtain a maintenance and operation Manuel, anyone know of a source? Also what would the recommended way be to give a good cleaning to the aluminum scrubber can, inside and out? <<>>
(Offline)

15th October 2006, 10:34	#2 (permalink)
ccr_ada 07971475781 Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Feb 2005 Location: uk sorry G.B. Posts: 211	Re: Lar Iii Quote: (Originally Posted by frediver) I'm looking for history and info on this unit? I sure would like to obtain a maintenance and operation Manuel, anyone know of a source? Also what would the recommended way be to give a good cleaning to the aluminum scrubber can, inside and out? <<>> well hello!!! Try here Rebreathers Worldwide Is this what you are looking for ? http://www.therebreathersite.nl/Zuurstofrebreathers/German/fotos_lar_ii.htm The is all sorts have a poke around I'm sure you will find what you are looking for CCR_ADA
(Offline)

15th October 2006, 12:28	#3 (permalink)
Dave Sutton Membership Cancelled Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,637	Re: Lar Iii Clean scrubber with white vinegar. Works great to clean out the old powder and crap. Just one of the endless series of LAR rigs, each particular mod for a different purchasing navy. Use of all is identical... meaning that it's time to read the US Navy Diving Manual section on 02 rebreathers and DON'T make a mistake.... Dave
(Offline)

15th October 2006, 20:47	#4 (permalink)
frediver New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Oct 2006 Location: n.cal Posts: 9	Re: Lar 3 I have looked thru my current U.S.N. manuel and it refers to a seperate operation and maintenance manuel. The current online maunel only describes the basic diving procedures and limits, I might be looking in the wrong section. Also the section only refers to the LAR V and the construction of the scrubber in the LAR 3 is metal Vs. fiber/plastic as you know.My big concern was the affect vinegar,caustic chemical residue and water would have on the bare metal and mesh end screens etc.?
(Offline)

15th October 2006, 23:32	#5 (permalink)
Dave Sutton Membership Cancelled Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,637	Re: Lar 3 Quote: (Originally Posted by frediver) I have looked thru my current U.S.N. manuel and it refers to a seperate operation and maintenance manuel. The current online maunel only describes the basic diving procedures and limits, I might be looking in the wrong section. Also the section only refers to the LAR V and the construction of the scrubber in the LAR 3 is metal Vs. fiber/plastic as you know.My big concern was the affect vinegar,caustic chemical residue and water would have on the bare metal and mesh end screens etc.? With all due respect: Since there aren't any parts availkable, an overhaul manual isn't much help, and all of the LAR series rigs are so simple that if you need a manual to work on it you ought to not be working on it at all.... and they so rarely (IE never) cause trouble that my reccomendation is to just see if it passes a negatice pressure test and then dive it. Vinegar works on all scrubbers. Too mild to hurt anything. Dave
(Offline)

16th October 2006, 00:57	#6 (permalink)
frediver New Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Oct 2006 Location: n.cal Posts: 9	Re: Lar Iii Thanks for the info.
(Offline)

16th October 2006, 11:49	#7 (permalink)
Dave Sutton Membership Cancelled Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,637	Re: Lar Iii Quote: (Originally Posted by frediver) Thanks for the info. I don't mean to be flip, and felt bad after I quickly shot that note yesterday. Really, all 02 rigs are a simple reducing regulator, and a manual add valve that's little more sophisticated than a BC inflator. The LAR series uses a purge diaphagm that doubles as a crude demand regulator diaphragm. If the HP gas is being reduced to IP by the reduction regulator (and it always is, never seen even one green with corrossion not work) and the purge button adds gas then the rig works if it does not leak. I've seen military ones that were utterly crusted with dried out scrubber powder and ugly still work perfectly. To clean up the scrubber just brush it out with a solution of vinegar and hot water and soap. It'll clean up fine. Freediver? Get rid 'o that rebreather! We're just loading the boat to go out to the Southwest Ledge off Block Island RI for some spearfishing. 35-50 feet deep and nothing but lungs allowed..... that's the lungs that God gave ya, no counterlungs... :-)
(Offline)

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