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Message: <blockquote data-quote="skidsteer.ca" data-source="post: 2427" data-attributes="member: 307"><p>Ted Here ar a few Q's for you Does the noise come when you lift or dump the loader or does it make the noise when you drive the wheel, they all groan on the drives some, the harder it is to turn the tires, the more noise my bobcat makes, and more so at lower rpm. Thats my expierience. Has this noise been there as long as you have owned the unit? Is it getting noticably worse, or are you not quite sure, but think so? The functions (r and l drives, lift tilt) are smooth and powerful, or do they jerk and surge as they are moved? Air (cavitation) in the system would make the system jerky. Is the hyd tank oil level higher then the pump and hydros, if so a suppy line to the pump or hydros would leak oil out when the machine sits. Colapsed suction hoses and air getting in the suction side of the system will make the drives and lift feel jerky. When you changed the filters did you cut them open and inspect for aluminum, steel or any other contamination. Can you find someone else with a 1845 to compare to. If the wrong oil was used, I don't believe this in itself would cause a noise. If the wrong oil cause something mechanical to tear itself apart, that could cause a noise. (the sound of the mechanical destruction) In this case your filters should be full of trash, and the system should not operate in a normal, powrful and smooth manner. Does it do it for both the right and left wheels and in both forward and reverse? Because the left and right are separate mechanical systems but the share the same oil, some plumbing, but if one acts different then the other its a sure sign of trouble. Putting the machine on blocks and running each side forward and back may make it easier to listen for where the noise comes from. But with the whells turning freely they hydros should be quiet because they are doing almost no work. But it may show you if something is binding, and not turning freely. I'm not sure but as components wear naturally over their life they may slowly become more noisy. Not that they change noticably from hour to hour . Btw how many house are on the machine? I'd contact case and see if their tech will answer any question for you. Like what charge press should be and where to hook the guage. Problems common to this machine. Their feelings about what you describe. Oils that can be used. If they value their customers they should be willing to help a little for (almost) free I've never owned a case, so these sugestions are general in nature but could be applied to most any hydro driven loader. Maybe someone else can be of more help Ken</p></blockquote><p></p>

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