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    question for operators...overide

    The problem with taking this approach is that many newer cranes and their LMI's are set to protect the operator and the job site from a possible crane accident. Crane accidents do not only occur because of bad ground conditions. In todays newer cranes many of their load charts are NOT based on...
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    Control pattern

    The bottom line with any of these types questions as to operating a crane comes with read the operators manual!! It is OSHA rule that the operating manual be IN the crane cab. The manual is THE bottom line as to operating that particular crane. If you do not have the time to review or find the...
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    question for operators...overide

    The override is for maintenance purposes and in the case of system failure. It is never advised under any circumstances to override the safe load system to complete a lift. There are many reasons operators use the override key or leave the system in override. I have traveled Europe, United...
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    Take a look at this pump for me..

    So it is fixed? Did you put new oil in it the very last time you operated the crane after you installed the "other original pump"? Was this the first time you tried with new oil? What type & viscosity grade oil are you running? Perhaps the old oil had air entrapped in it and water as well...
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    Take a look at this pump for me..

    What about oil Tell us the history of the oil you are using. Have you changed this recently? Is this the same oil that is recommended? Has there been any other recent repairs done on the hydraulic system? Perhaps the viscosity is not of the proper grade and or the oil could have water or...
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    Electrical problems

    Tell me do you know the purpose of the solenoid on the frame rail? Is this solenoid in the hydraulic system or the electrical system? Generally speaking most solenoids in cranes are getting power through a relay (low power signal from switch, etc. to pull in higher power draw like a solenoid) so...
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    is anyone hiring in the houston, tx area?

    Lots of crane operating jobs now available in northern Pennsylvania in the Marcellus gas drilling region - Williamsport, PA area.
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    Electrical problems

    Perhaps at this point since this crane arrived to you from another area have you revisited the basics - is the alternator putting out the proper volts and amps, are the batteries good and no shorted cells, are you sure of a good ground, are all the plug connections clean and tight, has the...
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    Electrical problems

    What needs to be sorted out? Which harness was replaced the upper crane harness or the lower harness from the electrical swivel to engine? Sometimes you can use a print from another model very close to the same build year and size if the original is not available. You can then get it close and...
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    What went wrong?

    I can say this to all of the operators reading this as my experience and observation of newer cranes and the progress of cranes over the years. Newer type hydraulic cranes have changed in ways many operators and owners have not thought about. Because of weight laws and the longer higher...
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    What went wrong?

    This is a good example of the value of job site cameras as a protection against liability for many parties concerned on the job. Just shows you can never be too sure of the recommended distance from the edge of an embankment - daily observation of ground condition and crane set up is vital...
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    Crawler Crane Components - Maintenance

    One of the more expensive parts you might expect in perhaps a shorter time frame than you might hope for would be the undercarriage. What I mean is you may not do a lot of lifts but if you walk the crane many times in say sandy soils or some other type of ground conditions not good for this...
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    Zeroing the Slew Angle on a Grove 700E

    Thank You Keep in touch and keep going to www.cranetools.com I add information almost daily!
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    Zeroing the Slew Angle on a Grove 700E

    Service manual for PAT IFLex 5 system I think in regard to the swing problem not zero over the front you need to go to my web site www.cranetools.com and on the home page left hand side you will find Industry Information scroll down this column until you see LMI Safety Systems and then click on...
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    Zeroing the Slew Angle on a Grove 700E

    In regard to the axle oscillation I think there is a hydraulic valve associated with this function. Perhaps the spool in the valve cannot or will not center perhaps a broken spring or a bad input that is causing the valve to not function as it should. THere may also be a hydraulic accumulator...
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    Zeroing the Slew Angle on a Grove 700E

    I suggest that you look at the inside of the rotation bearing area as there may be what is known as a definition switch or switches that will locate the area of the superstructure of the crane in relation to the chassis - thereby determing over the front, rear or wherever. It may also be...
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    Looking for Feed Back

    Nice photos of real cranes - these are all-terrain machines capable of making many any lift you might have Impact THe yellow Grove would more than do the job but that is new and surely more money than what you might want to spend Have you tried looking at a used Krupp or Demag a good...
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    Swing Bearings on a Grove 300LP

    This is normal deflection on these cranes - with the boom unloaded it may even have some backward chamber. In regard to the bearing have you measured the play by using a dial indicator - just curious what you might find. Most bearing are a roller type or a double roller type bearing but there...
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    Manitowoc 31000

    I too am an industry insider or should I say a dedicated reader of crane activities worldwide. The pictures for the 31000 started to appear over a month ago! By reading a technical description of the specs. - if you know cranes you could have painted a picture of what this is going to look like...
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