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General Bobcat Skidsteer Forum
Bobcat 773G Hydraulic Issue
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<blockquote data-quote="Schifference" data-source="post: 126487" data-attributes="member: 19406"><p>Still in the logic, thinking, brainstorming, mode.</p><p>Yesterday I put the 709 backhoe attachment on and it was not working very well. I checked hydraulic oil level and added some which did nothing to help. </p><p>I opened the cab enclosure because I was thinking that maybe the backhoe was not operating properly because Auxiliary hydraulics were operating in reverse. I was contemplating changing the connections. When looking at the connectors at the front of the machine, one is longer than the other following the contour of the cab and machine. If I just switched the connectors there that wouldn't seem right. I followed the lines to the back of the engine compartment and noted them going under the cab. I lifted the cab to see if there was a place where someone might have mistakingly switched the Auxiliary Hydraulic lines but noted they are hard metal lines all the way to the pump. So I didn't think that had happened. While inspecting the hydraulic lines I noted that I was operating with one of my auxiliary solenoids disconnected. I disconnected it a few days ago when doing all the troubleshooting diagnostics. After plugging in that solenoid, holy smokes, I am digging that 709.</p><p>With that said, I will need to see what happens when I put that 4 in 1 bucket that I switched the hose ends back on.</p><p>From what I can tell, according to the diagrams for up and down, left and right, etc, etc... on the 709, all the functions are working in the correct direction.</p><p>One more thing is nothing seems to render lift or tilt non-functioning as before. My guess is that lack of use rendered sticky valves.</p><p>I will continue to update.</p><p>At this point, I would advise any person having difficulty with auxiliary hydraulics on a machine that has not used auxiliary hydraulics often or in a long time, or not at all, is to put on an attachment and keep trying to use it. Maybe if you keep trying to use it and the valves heat up and the fluid gets hot, things will free up and work as they should. </p><p>As mentioned, I can't say I have no more issues but will report back here when I know more.</p></blockquote><p></p>
[QUOTE="Schifference, post: 126487, member: 19406"] Still in the logic, thinking, brainstorming, mode. Yesterday I put the 709 backhoe attachment on and it was not working very well. I checked hydraulic oil level and added some which did nothing to help. I opened the cab enclosure because I was thinking that maybe the backhoe was not operating properly because Auxiliary hydraulics were operating in reverse. I was contemplating changing the connections. When looking at the connectors at the front of the machine, one is longer than the other following the contour of the cab and machine. If I just switched the connectors there that wouldn't seem right. I followed the lines to the back of the engine compartment and noted them going under the cab. I lifted the cab to see if there was a place where someone might have mistakingly switched the Auxiliary Hydraulic lines but noted they are hard metal lines all the way to the pump. So I didn't think that had happened. While inspecting the hydraulic lines I noted that I was operating with one of my auxiliary solenoids disconnected. I disconnected it a few days ago when doing all the troubleshooting diagnostics. After plugging in that solenoid, holy smokes, I am digging that 709. With that said, I will need to see what happens when I put that 4 in 1 bucket that I switched the hose ends back on. From what I can tell, according to the diagrams for up and down, left and right, etc, etc... on the 709, all the functions are working in the correct direction. One more thing is nothing seems to render lift or tilt non-functioning as before. My guess is that lack of use rendered sticky valves. I will continue to update. At this point, I would advise any person having difficulty with auxiliary hydraulics on a machine that has not used auxiliary hydraulics often or in a long time, or not at all, is to put on an attachment and keep trying to use it. Maybe if you keep trying to use it and the valves heat up and the fluid gets hot, things will free up and work as they should. As mentioned, I can't say I have no more issues but will report back here when I know more. [/QUOTE]
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