Recent content by JT31

  1. JT31

    Looking to buy my first knuckle boom crane with a grapplesaw.

    Service is always a big thing with any brand of crane as well as parts availability. If interested in seeing a Copma grapple saw crane you can contact Cranes & Equipment in Peoria, IL 309-674-7400.
  2. JT31

    Tree monster

    Defiantly no pay load left on the chassis, just your typical matts, cribbing, etc. Manitex usually puts out a pretty good product. Looking at the website, Manitex does offer a jib but I don't think you can do it with that chassis. Looks like fully extended 101.4', 50 degrees boom angle, your...
  3. JT31

    more fun with knucklebooms

    I saw it on a Precast setup. If the air bags were dumped out the side stability got much better. But due to the build setup out the back got worse. This was a rear mount 100tm k-boom. I know of several companies that never dump their air unless they have to due to a certain scenario. As for a...
  4. JT31

    more fun with knucklebooms

    I know who Advanced Equipment is, good people. And yes you are correct, there are several dealers out there that wont help if you didn't buy it from them. Never understood this concept, as I always try to help everyone if possible. I assume when you refer to folding stacks you are talking about...
  5. JT31

    more fun with knucklebooms

    On the hydraulic hose routing it appears they are running 3/8" hose through a track system on the secondary boom (some call it the main boom). Once connected to the jib they are using a hose reel for the tip connections. Who is doing the work for you if you don't mind me asking? I always try...
  6. JT31

    more fun with knucklebooms

    Yes, from what I have seen sometimes dumping the suspension can help you out the side stability, but sometimes can hurt you out the back (depending on the setup). I would assume with your's being a cab mount it wouldn't effect you out the back. Remember on a knuckleboom setup, the outriggers...
  7. JT31

    more fun with knucklebooms

    Is this like the Palifinger as far as the using a electronic controlled diverter valve to switch from a jib function to a grapple saw function? I know this is how it done in the past, wasn't sure if they changed that or not.
  8. JT31

    Jumping on the KB train as well.

    PM cranes was bought out by Manitex International a few years ago. Cranes and Equipment use to sell PM but has since backed of the product line and is only a parts and service place for PM, but is selling the Copma knuckleboom. BIK is possibly the only PM dealer that sells a lot of the PM...
  9. JT31

    Jumping on the KB train as well.

    What the front bumper stabilizer is going to do for you is not allow the front suspension to compress. With this it is allowing you to get better stability as well as not put extra stress on your front suspension components, causing them to wear out prematurely.
  10. JT31

    Jumping on the KB train as well.

    Most of the electronics now a days are very good, don't get me wrong you always have chance of a failing angle sensor, pressure transducer, etc. I work for Cranes and Equipment and the Copma 450 offers a traditional hydraulic overload system with computer monitoring. Also offers the full...
  11. JT31

    Unmounted crane or boom truck

    2 used Palfingers (both mounted on trucks) available at Cranes and Equipment in Peoria, IL. www.cranesequip.com
  12. JT31

    How reliable are palfinger crane Electronics?

    With all electronics there is always a risk of failure. With the technology today it is much less of an issue than it was 5-10 years ago, just don't get a pressure washer near it.
  13. JT31

    How reliable are palfinger crane Electronics?

    Unless they have changed the sequence valves, they are pressure activated on the extend and when you retract the previous extension must come in contact with a plunger to open it and allow the next extension to retract. There are good an bad with that system. It allows the extensions to sequence...
  14. JT31

    Looking to buy my first knuckle boom crane with a grapplesaw.

    The one to keep in mind is all of these different brands of knucklebooms (Palfinger, Copma, PM, Effer, Hiab, etc.) can in theory be modified to use the grapple saw. As a few others pointed out earlier is service is an big deal. If you can't take care of it mostly yourself then make sure you can...
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