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Originally Posted by ngreen
Oh yeah, to check for leaks get water with a little soap in it and check each part. Or just have really good ears in a quiet environment, sssssss, not best to look for in the pits or before competition.
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If you have a lot of time to test, a "5-Minute" or "10-Minute" test is a great leak checking measure. Charge the pneumatics assembly to 120psi, turn off the power, and check the guages 5 or 10 minutes later. If they still read 120, you have no leaks. If thee gauges are under 100, you have a slow leak, if the guages are under 60 psi, you have a problematic leak.
If it's your first time using pneumatics, or first time using the soap method, take about 2 oz of water and maybe a 1/2 oz. of liquid soap mixed well. Should be noticible to the touch that there is soap present, but just soap won't work well. Using a finger, dip it into the soap/water mixture, then dab around any place where a connection is made. Plugs to cylinders, plugs to tubes, plugs to T-Box's... anywhere that a leak could be. You will notice that the air pushing out of the leak will make little, but noticeable, bubbles. tighten the connection or recut the hose to fix the leak. (Note: messy cuts in hoses are usually the cause of the problem. If it doesn't cut the first time, go 1/4" higher on the tube and cut again. Tubing is rather lightweight. An extra 1-3 inches per plug is a good saftey measure incase tubes need to be cut down.