Why do you have to COCK b4 air up
Printed From: Tippmann Paintball
Category: Paintball Equipment
Forum Name: Gun Maintenace and Repair
Forum Description: Important info for keeping your marker in top shape
URL: http://www.tippmannsports.com/forum/wwf77a/forum_posts.asp?TID=158387
Printed Date: 01 May 2026 at 9:14am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Why do you have to COCK b4 air up
Posted By: EliteEagleX
Subject: Why do you have to COCK b4 air up
Date Posted: 08 August 2006 at 12:48pm
| I've been wondering this for awhile, and just never asked anyone, Why do you have to cock the A-5 before airing up? If the gun freezes then it uncocks while it's aired up so.... isn't that the same as not cocking it before it airs up? |
Replies:
Posted By: pattison
Date Posted: 08 August 2006 at 1:50pm
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so the valve spring doesn't have to fight against the hammer spring ------------- Eat The Brisket |
Posted By: Bruce A. Frank
Date Posted: 08 August 2006 at 2:07pm
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Pressure from the power spring can be strong enough to overcome the power of the poppet valve spring...thus holding the valve open when the marker is not cocked. Installing the gas at that point dumps right on through the valve. When the marker is cocked there is no pressure on the poppet valve stem so the spring inside the valve keeps it closed. Once the valve is aired up the gas pressure then also keeps the poppet valve closed. The flow of gas out of the valve, when the hammer hits the stem, tends to blow the valve closed again which also helps to push the hammer back off the stem. That, along with the gas escaping around the stem where it goes through the power valve's back plate, throws the hammer back far enough to allow the sear to engage, then holding the hammer in the cocked position. Is that clear enough? Now, markers with LP kits installed have a softer spring inside the power valve. Which makes the likelihood of valve leaking, when the marker is aired up when uncocked, even greater. -------------  
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EliteEagleX wrote:Posted By: EliteEagleX
Date Posted: 08 August 2006 at 2:52pm
| Ah, makes sense. I was just always wondering that, thanks |
Posted By: Enos Shenk
Date Posted: 08 August 2006 at 7:38pm
 Cupcake for Bruce for a perfect explanation. ------------- 
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Posted By: Monk
Date Posted: 08 August 2006 at 10:16pm
| Its not really needed though. |
Posted By: Bruce A. Frank
Date Posted: 09 August 2006 at 3:30am
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What? The cup cake or the explanation? -------------
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Posted By: Monk
Date Posted: 09 August 2006 at 1:46pm
The cocking before the gassing. lol. You deserve alot more than a cupcake though lol. |