Hammerhead Reset uw ??? and Solenoid closed ???

DrJM

Many thanks to all for your answers.

Instead of 2 x 3,6v 1/2 AA who are a bit expensive, WHAT about AA 1.5 V Lithium batteries at 3000mA

Regards

Jerome

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jradomski

stay away from 1.5v lithiums (This is stated in the manual, The will work but you wount get ANY warnings at all, they just die).. they go from working perfectly to totally dead with no warning..

The 2x 1/2aa was needed on Rev a units but can be used on rev b and rev c units..

On the rev B units the best battery to use (duration/cost wise) is a 3.6v lithium (as long as you use the right type).. the best one is a saft ls14500 (make sure there is no c in the model number), look at the current HH manual for lithium battery suggestions..

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Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.

pabusk

Not trying to pull this threat off topic but as non-HH diver I'm curious if this list is the only way HH users get their info ?? Just asking as I see a lot of problems reported and can't imagine that that is the only thing HH users have to tell about their units. As I'm diving with HH users I just like to stay informed as to know what my buddy is diving with.

Cheers,
Paul

jradomski

The current HH user manual is available from the JM website, The manual does list some possible concerns and how to solve them. There is an older manual for the plastic units, that covers the older units.. The current manual is for the latest electronics and covers most of the original electronics.
http://www.rebreather.us/Site%202/Ha...ual%201.0c.pdf


There is an extensive thread on this board listing past issues and how they were fixed..
http://www.rebreatherworld.com/rebre...html#post53776

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Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.

Mark Chase

If your asking is there a private HH list? The answer is not that I am aware of (I own two HH's)

Many issues have been discussed on here and Kevin Juergenson (SP) has come on these boards to answer questions for which, I for one, have great respect.

As with all multi user boards there are some people who take that opportunity to lay into him / his product which is a shame because I quite like the way we can sort out issues in the open.

If this has put him / others off posting It would be a sad loss and explains the need for closed forums for users to discuss issues without unnecessary abuse.

I have learned a lot about the practical issues of diving a HH on RBW and there are more than a couple of experts on it on here.

ATB

Mark Chase

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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
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heyydude

Hey Paul,

We used to have a "Juergensen Marine" web-based list, and a Yahoo Group that Phi Le set up for me years ago, but RBW has become pretty much the de-facto master source for rebreather information worldwide - so most things get answered/addressed on here.

The way I try to work it is that most (99%) of questions about the Hammerhead system can be answered by guys like Joe Radomski, JP Jones, Mark Chase, and other folks who dive (and like) the system. I try to step in every now and again to add commentary if I feel it is necessary to further explain something, but I do make a concerted effort to keep out of the day-to-day go-around on the list.

We are developing constantly and as such, my day is usually filled with engineering meetings, phone calls, private e-mails, and coordinating the build of all the Hammerhead products and the Optima's (150 of them just in the last 14 months - which has to be some kind of record).

Also - there are some folks here who just don't like our stuff - I could argue with them all day long, and listen to them tell me I'm an idiot, but then I'd get nothing else done, and my wife tells me they're right anyway, and that just pisses me off more....

And the internet is a perfect soapbox for people to air grievances.

For example: Most people who have NO problems with any product rarely go online to say "Hey, my Ford Pinto is running just great!" - but you can bet that someone who has a problem with their Ford Pinto will search out any and all forums to find out if they are the only one with problems (misery loving company and all that). Usually, they're not. Any product can have issues - ours included.

Second Example: Santa Claus brought my 7 year old a Wii for Christmas. This thing is awesome - best game I've ever seen. But the Wireless Connectivity doesn't work for some reason. So, I go online and sure enough, there are whole websites dedicated to people calling it a POS because they can't share their "Mii" characters across the Internet. Boo Hoo.

The key is, how does the manufacturer react to the problems? Nintendo is shipping replacement units to anyone affected. We try to address problems and fix them if they happen to a particular unit. Problems that are endemic to a design get reviewed, altered or changed out completely. Takes time, since we're not as big as Nintendo, but hey, it does get done.

Anyway - how I look at it, as a Manufacturer and someone who genuinely cares about each and every user of our gear, is that we have so many sets out there now - over 500 of one sort or another - that we must be doing something right. We've been keeping divers alive since 1994 (thank God!), and we hope to be keeping them alive and safe for many years to come. We are not perfect - I'm acutely aware of that - but the first step to enlightenment in manufacturing is to recognize and accept that very smart people can still make mistakes...

Anyway, RBW is a great repository of information for both newbie and veteran alike. Often, it is a forum for what I call "extreme bloviation" but if you look hard enough with a skeptical eye, you can usually separate the wheat from the chaff. It has also done something more broadly than the old "Techdiver" and "Rebreather" mailing lists have done - it has coalesced a Community of rebreather divers, and given them a place to share information, stories and pictures.

I will continue to contribute whenever I can, but will keep to my policy of posting only occasionally. It's the only way I can get things done in the office! (For example, I've spent 45 minutes drafting this post, ignoring about 5 phone calls in the process - not very productive, business-wise).

But if you ever have any questions, you can send me an e-mail directly <kevin@rebreather.us> and I'll reply. I only ignore e-mails from people who tell me I'm stupid.

Duh - I'm trying to make a living in the scuba diving business. Don't they think I know that already??

All the best,

Kevin Juergensen
Juergensen Marine, Inc.