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how to spec a pto and pump

Discussion in 'Car Hauler and Auto Carrier Trucking Forum' started by canadianredneck, Dec 14, 2015.

  1. Dec 14, 2015 #1
    canadianredneck

    canadianredneck Light Load Member

    229
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    Jul 26, 2012
    Western Arkansas
    0
    Evening all. We are adding my olde water hauling truck to the fleet. It has a pto that runs a driveshaft to the now removed vacumn pump. I am trying to figure out how to size spec a pump to run on that pto to run the 8 car trailer we just bought. The 10 car has both an electric and PTO but not driveshaft style. The 6 car is battery operated on the trailer. Any ideas or suggestions would be appreciated.
     
    canadianredneck, Dec 14, 2015
    canadianredneck, Dec 14, 2015
    #1
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  3. Dec 15, 2015 #2
    Hammer166

    Hammer166 Crusty Information Officer

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    Aug 18, 2007
    ~8600+' and loving it!
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    Call the trailer manufacturer, they'll give you specs for gpm and psi. Look up the specs for your pto so you know what rpm the shaft will run, and you'll know which pump you need to order.
     
    Hammer166, Dec 15, 2015
    Hammer166, Dec 15, 2015
    #2
  4. Dec 15, 2015 #3
    canadianredneck

    canadianredneck Light Load Member

    229
    104
    Jul 26, 2012
    Western Arkansas
    0
    I will, Thanks. Doesnt the GPM depend more on the tank volume? I have a 30 gallon tank I ran when hauling crude. it fits right where the vacumn pump went. I was hoping to use that.
     
    canadianredneck, Dec 15, 2015
    canadianredneck, Dec 15, 2015
    #3
  5. Dec 15, 2015 #4
    Cat sdp

    Cat sdp . .

    21,183
    75,084
    Apr 8, 2012
    Orion's Belt
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    No gpm doesn't depend on tank size......if you return the oil fast enough you could still have a high gpm pump rate with a small tank.
     
    Cat sdp, Dec 15, 2015
    Cat sdp, Dec 15, 2015
    #4
  7. Dec 15, 2015 #5
    Hammer166

    Hammer166 Crusty Information Officer

    7,553
    27,498
    Aug 18, 2007
    ~8600+' and loving it!
    0
    30 gals should take care of it. I don't think the factory tanks are even that large on the self-contained trailers.

    PSI = load capacity

    GPM = speed

    Plus, if your GPM is too slow, the cylinders have a greater tendency to want to work slightly out of phase.
     
    Hammer166, Dec 15, 2015
    Hammer166, Dec 15, 2015
    #5
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