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  1. #61
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    Jul 2011
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    South Jersey (The 51st State)
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    Quote Originally Posted by firepundit View Post
    There is nothing new about the way modern air brakes work. They have been working the same basic way since George Westinghouse invented them.

    There is also nothing new about hydraulic pistons. The reason some manufacturers supply pinnable outriggers is due to the fact that holding valves all leak to some minor degree. Maybe only a drop every few minutes but, they do leak a little. Consequently, if you set the aerial up for an extended period of time, the jack will move a little. Even on an E-One.
    AGREED!

    I believe to this day I am still here thanks to my aerial having pins! An unknowingly defective hydraulic piston seal caused an outrigger to fail while I was on the tip of a modern 75' LTI, flowing 1000GPM or more, at full extension, and at 30 degrees. We HAD NO IDEA there was a failure until we went to remove the pin to stow the jacks and noticed that the pin was holding the truck up. It's 10 seconds that COULD SAVE YOUR LIFE!

    Back to the actual topic at hand...

    The SPH100 has one of the fastest set up times in the industry for a Mid-Mounted Tower Ladder. It also has only one set of side-protruding outriggers which makes it quite a bit easier to position in tight areas. E-One has a good jacking system as well... but it's two different styles and other then comparing set up times, we're not comparing apples to apples.


  2. #62
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    Feb 2009
    Location
    virginia
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    I set up my 95 rear mount tower (I was the driver for the shift so it was mine) for training the other day. We set the bucket in the air to use for the tech rescue bozo to try to hang themselves with. The truck was on a slope of 5% the max front to back slope for the truck. After several hours of use we had to back the truck off the chock in the front wheel only about a 1/4". Either way the truck moved foward to the point weight was applied to the chock and could not be removed. why risk it?

    This truck also after flowing water off the ladder pipe at a low angle the outriggers on that side sometimes has to be slightly lifted to remove the pins off of that side. Once again not alot only about a 1/8" to a 1/4". Valves leak!!

    Once again nobody here has stated a valid reason to not use chocks or pins or any other safety item. Crushing the chocks is not a valid reason. It takes to much time is not a valid reason. Modern air brakes dont need chocks is not a valid reason (was the titanic not a new modern unsinkable ship?).


    As far as the video and set up time i think we can all agree it is a marketing video.

  3. #63
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    Join Date
    Nov 2007
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    592

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    Quote Originally Posted by RFD21C View Post
    Crushing the chocks is not a valid reason.

    I have never seen a crushed chock and I have seen several get run over. I'm calling bull. Not on you, but the original poster of the "observation." I agree with everything you said.

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