Firehouse.com Forum Rules & Guidelines

Forum Rules & Guidelines

Not Permitted or Tolerated:
• Advertising and/or links of commercial, for-profit websites, products, and/or services is not permitted. If you have a need to advertise on Firehouse.com please contact [email protected]
• Fighting/arguing
• Cyber-bullying
• Swearing
• Name-calling and/or personal attacks
• Spamming
• Typing in all CAPS
• “l33t speak” - Substituting characters for letters in an effort to represent a word or phrase. (example: M*****ive)
• Distribution of another person’s personal information, regardless of whether or not said information is public knowledge and whether or not an individual has permission to post said personal information
• Piracy advocation of any kind
• Racist, sexual, hate type defamatory, religious, political, or sexual commentary.
• Multiple forum accounts

Forum Posting Guidelines:

Posts must be on-topic, non-disruptive and relevant to the firefighting community. Post only in a mature and responsible way that contributes to the discussion at hand. Posting relevant information, helpful suggestions and/or constructive criticism is a great way to contribute to the community.

Post in the correct forum and have clear titles for your threads.

Please post in English or provide a translation.

There are moderators and admins who handle these forums with care, do not resort to self-help, instead please utilize the reporting option. Be mature and responsible for yourself and your posts. If you are offended by another member utilize the reporting option. All reported posts will be addressed and dealt with as deemed appropriate by Firehouse.com staff.

Firehouse.com Moderation Process:
Effective immediately, the following moderation process will take effect. User(s) whose posts are determined by Firehouse.com staff to be in violation of any of the rules above will EARN the following reprimand(s) in the moderation process:
1. An initial warning will be issued.
2. A Final Warning will be issued if a user is found to be in violation a second time.
3. A 3-day suspension will be issued if the user continues to break the forum rules.
4. A 45-day suspension will be issued if the user is found to be a habitual rule breaker.
5. Habitual rule breakers that have exhausted all of the above will receive a permanent life-time ban that will be strictly enforced. Reinstatement will not be allowed – there is no appeal process.

Subsequent accounts created in an effort to side-step the rules and moderation process are subject to automatic removal without notice. Firehouse.com reserves the right to expedite the reprimand process for any users as it is deemed necessary. Any user in the moderation process may be required to review and agree to by email the terms and conditions listed above before their account is re-instated (except for those that are banned).

Firehouse.com reserves the right to edit and/or remove any post or member, at any time, for any reason without notice. Firehouse.com also reserves the right to warn, suspend, and/or ban, any member, at any time, for any reason.

Firehouse.com values the active participation we have in our forums. Please ensure your posts are tasteful and tactful. Thank you very much for your cooperation.
See more
See less

Scott problem

  • Filter
  • Time
  • Show
Clear All
new posts

  • Scott problem

    We have had a problem with our Scott 4.5 airpacks going into low pressure alarm at about 50% capacity instead of the 25% it should be. A valve in the pressure reducer becomes iced up during regular use and causes the alarm malfunction. We have checked the moisture content and dew point of our air, and it all meets specs. If anyone else has had this problem, please let me know. Thanks.

    The problem first started when we first started training with the new packs last August, and it continues still. Our department is in Eastern NY State, and it can get cold. However, the problem occurs even during interior suppression evolutions at live burns and during structure fires.

    [This message has been edited by ChiefAJM (edited 03-29-2001).]

  • #2
    What time of year is this happening? Has it only been these last few winter months?

    We had and sometimes still have a problem with freezing of a few SCBA from time to time during the winter months. It had nothing to do with moisture content of your cylinder air or with pack malfunction. It was simply condensation that formed from the FF breathing into the MMR and when he stepped out of the structure into the cold outside air, it would begin to freeze and produce various strange behaviors.


    • #3
      We have seen this a few times, it usually occurs when the temp is extremely cold and the BA is being used outside for extended periods.



      • #4
        We just ordered 4 complete set of scott 4.5. Is this a problem that occurs reguraly and what is the temp that it starts to occur at also is there a quick fix if we experience the same problem


        • #5
          Have you contacted your local Scott service center? Give them a detailed description of the problem and have them conduct a flowtest on the affected units. It sounds like a problem inside the reducer assembly. If someone qualified can take a look inside, it might help to identify the cause.
          The 4.5 has a small, inset button on the reducer for testing the swtich from the primary to the secondary reducer stage. Do the affected units switch over normally? (Just curious). (While using the unit, have someone push in the button with a small punch or allen key. The vibralert should be activated and should stop within a few breaths of the button being released.

          Richard L.


          • #6
            we had a problem one time with moisture in our pressure reducer the scott service repair tech. that was there asked if maybe the frames got submerged in water when they were cleaned, well some of them were. so he seemed to think thats how moisture got into the pressure reducer. now no airpaks are submerged in the cleaning water and we haven't had any problems....


            • #7
              This may not solve your problem, but something to check. I had this same problem on a fire this past January(20-25 degrees), another FF heard me tell the safety officer and he told me that he had the same problem on a previous fire, and to check that the bottle valve was fully open, mine was not, I opened it all the way and the problem stopped immediately. We couldn't believe it was that simple, but it worked.


              • #8
                fairbanks, alaska

                the 4.5 is an awesome pack. I have seen the low pressure alarm go off during freeze up...my question is this. Does it truly "Go off" or does the regulator viberate off and on? at sub-zero temps i have seen the regulator viberate off and on, for very short periods.
                Due to the extreme cold we use the one hour bottles, mostly because the regulator freezes to the mask and the coupling freezes to the pack making changing bottles difficult.
                One of the things you might want to look at is a cold weather mask. It has only one exhalation valve and a rubber piece in the regulator that prevents moisture from entering the working parts of the regulator.
                Contact Scott and see what they advise. they have always been a pleasure to work with.

                Incidently i have used this pack with the above mentioned mask at 50 below zero and experienced no problems.
                Last edited by pedalinmedic; 07-16-2006, 10:29 PM.
                "Some people train till they get it right, we will train till we can't get it wrong"

                Is gaire cabhair de na an doras

                Virtete et Valare Luceo Non Uro


                • #9
                  I doubt you'll get an answer considering its 5 years later and they're not registered.


                  300x600 Ad Unit (In-View)


                  Upper 300x250