A few more dump truck questions

Discussion in 'Questions From New Drivers' started by cmb7684, May 6, 2011.

  1. cmb7684

    cmb7684 Bobtail Member

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    Metairie, LA
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    I got the truck in and everything is ok so far. I notice a few leaks here and there but nothing major that I have come across at this point. This is my first truck.

    I have tinkered with the switches and have figured out most things with the excpetion of a few.

    1. The PTO and dump bed controls do three functions. If you pull up and push down on one control that lets air out when you push down it unlocks and locks the gate from what I can tell. The PTO switch itself says in or out. My question is to engage the PTO to raise the bed do I switch it IN or OUT (the light is missing) and once I put it in the correct position do I put the truck in drive? The truck has an automatic tranny so I'm not sure what I should be doing to try to lift the dump bed. The third lever on the assembly is a lever that allows you to raise or lower the bed but its locked on place so I'm not sure if that is because I need to unlock the bed somewhere or its because I'm not engaging the PTO properly.

    2. On the drivers side of the dump bed there is a lever on the front of the bed. There is also a chain with a circle ring that goes over the lever I assume a a safety. I'm not sure what the lever does or if it is even hooked up. Looking under the bed it appears the lever is not connected. I saw other ebds online that have the lever also. Can anyone tell me what this lever is for?

    3. I had a job offer. However being new to the business I'm not ready to entertain it until I make a few dumps local first at my place and a few friends to get the hang of driving it and dumping etc. The offer is picking up fill dirt and dumping it. The man says he can give me a 2 plus year contract at $8.25 per ton. I have a tandem truck the bed measures at about 14 yards. My front axles are 12,000lbs and my rears total 40,000lbs according to the panel on the door. I guess the truck to weigh empty about 12,000lbs. How much fill dirt can I carry on average and is 8.25 a ton decent pay? The trip is 105 miles round trip with mostly highway driving. My motor is the cummins L6 8.3 motor on a Ford F900. I'm not sure of what I will get MPG yet.

    4. Another question is about these contracts. Should I be signing a contract. What happens if my truck goes down and I have signed a contract. Can anyone tell me more about the pros and cons of a contract etc when it comes to dump truck work?
     
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  3. SL3406

    SL3406 Medium Load Member

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    When the PTO is IN it is engaged to dump the bed.

    The handle is a manual control for the tailgate if the truck did not have a air powered tailgate.

    I would guess about 14 tons. $8.25 a ton would pay $115.50 a load for 14 tons. Thats enough to pay for the fuel and not much else. I would pass on that.

    I have never signed any contracts in my 13 + years in the business. As unstable as the fuel prices are a fuel surcharge would be mandatory for any long term contracts.
     
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  4. gravdigr

    gravdigr Road Train Member

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    Well my experience is driving a manual t plate dump truck. For the pto in should be on. You should be able to tell when the pto is engaged. On a manual you have to put the tranny in neutral and push the clutch in to engage the pto, then when you let the clutch out the tranny spins and the pto engages. Not exactly sure how it works on an auto.

    And that lever is the tailgate release lever. Take the hoop off and pull the lever down and it releases hooks on the bottom of the tailgate to allow it to swing out when you dump your load (lol I said dump your load).
     
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  5. cmb7684

    cmb7684 Bobtail Member

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    Apr 26, 2011
    Metairie, LA
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    Ok so the handle on the side of the bed is obsolete. I will toy more with dumping the bed over the weekend. I heard the PTO engage but I could get the handle that sayd raise/ lower to release from the middle position. There ha sto be some way to unlock it or a step im skipping that has to be dont for that lever to be released so I can raise or lower the bed.

    I will read the email again and see if i misread anything about that contract.
     
  6. brinkj23

    brinkj23 "Asphalt Cowboy"

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    Is there a button in the middle of the raise lower handle? Push it in, hold it and the raise it or lower.
     
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  7. WitchingHour

    WitchingHour Road Train Member

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    There's a knob atop the lever... you might have to push down on it in order to get it to be able to move. Can you post a photo of your PTO controls?
    The lever on the side of the bed.. it's good to have a backup.
     
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  8. groundpounder

    groundpounder Road Train Member

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    +1
    For sure pass the contract almost sounds like he knows your just getting into dump work..
     
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  9. Logan76

    Logan76 Crusty In Training

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    I agree, some local guys around here run 13$ a ton. Take a picture of your PTO and bed controls. Im guessing you have to push a button down ontop of the bed controls to get them to move.
     
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  10. Pedigreed Bulldog

    Pedigreed Bulldog Road Train Member

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    Huh?:biggrin_2556:

    The Power Take Off (PTO) drives the hydraulic pump, and it is either going to be on or off. If it is not engaged when the switch is "out", then that would be off. Generally, air pressure will engage (turn on) the PTO, and spring pressure will disengage (turn off) the PTO.

    You should have another switch which controls the pump...also probably an air switch. This switch should normally be in the center position. Move the switch one direction and the bed should go up (if the PTO is engaged). Move the switch the other direction and the bed should go down. You will want to make sure when you lower the bed that the pump is off. Store-bought controls automatically disengage the PTO when you lower the bed. If yours is rigged up using generic switches, you will want to be sure to disengage the PTO prior to lowering the bed to avoid damage to the pump.

    Here's what my store bought controls look like:

    When I am driving: PTO is off. Control is in "hold" position:

    [​IMG]


    When I'm ready to dump, I position the truck then engage the PTO:

    [​IMG]

    Then, I raise the bed:

    [​IMG]

    When the bed is all of the way up, I turn off the PTO and ease the truck forward until I'm clear of the pile and the bed is empty. Then I lower the bed:

    [​IMG]

    When the bed is all of the way down, I move the switch back to the "hold" position.

    That's an overly simplified "how-to" on what the controls do.

    I've never driven an automatic transmission, but back when I was driving wreckers, a salesman was showing off a truck with an auto. In order to engage the PTO, he said to put the transmission into drive. Then engage the PTO. Then put the transmission back into Park. The process is similar in a manual shift transmission...you want to have the truck stopped and put the truck in gear to make sure the gears aren't spinning before you engage the PTO, otherwise it is a harsh engagement and you run the risk of tearing things up. There might be a lockout mechanism which prevents you from engaging the PTO unless the truck is in gear and your foot is on the brake...but without actually being there to see the truck or knowing exactly what you are talking about, the best I can do is guess.

    I've never run a straight truck/dump...only a tractor trailer. I would assume, though, that it is would be a tailgate release...which if the previous owner had converted to an air powered release, the manual release would have been disconnected.

    I guarantee your truck weighs more than 12,000 pounds empty. My truck is a day cab and a semi tractor...and without a trailer, I'm 17,000 pounds. Of the guys I work with, even the lightest company trucks are still in the 14,000 pound neighborhood...and again, that's just the semi tractor. Add the weight of the dump bed to that and at MINIMUM you are going to be between 17,000 and 20,000 pounds empty...possibly more.

    One thing you want to keep in mind is that the contract is going to bind the rate...meaning for the next two years, that's what you are hauling for. While it might work out for you now, how high can fuel prices go before you're going broke? Make sure there's some sort of clause in there that allows you to charge more as the price of fuel increases...a fuel surcharge. Otherwise, you'll be paying the oil company to haul this guy's dirt instead of making a profit.
     
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  11. cmb7684

    cmb7684 Bobtail Member

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    Apr 26, 2011
    Metairie, LA
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    Ok here are the pics I have so far. Maybe I'm missing something:
     

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