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Bobcat Skidsteer Forums
Bobcat Compact Track Loaders
T300 with no real lifting power
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<blockquote data-quote="Fishfiles" data-source="post: 33624" data-attributes="member: 782"><p>Worst case senerio is what you may be looking at , the both problems can go together as you think , I seen it quite a few times now on the T300 and 250 where it is total burn up of the hydraulic system caused by the operator continue to run the machine with brake problems and the hydraulic system is like a blender and grinds up all the fragments , which over loads the case drain filters and makes it by and get stuck in reliefs and aux coil stem valves which could be why your aux is sticking on , the trash will take out the gear/charge pump and the sunstrand , I seen one these jobs last week that cost $19,000 at the dealer to change both travel motors , the sunstrand , gear/charge pump , flush the system and clean all the reliefs , and stem valves , if the machine is a little older and this is the case then it is really not worth putting that amount of money into it -------------I would hook a hose to the aux quick couple and pump a gallon of oil into a clean bucket and look for the golden sheen in the oil , if you let the oil sit you won't see it , it needs to be stirred up , if it's funky an oil analysis would be helpful , I'd also check whats in the hydraulic filter and case drains , the dealer that worked on should have clean the case drains if they evaluated the brakes where bad so you might not find alot there now , I would bet if you set your display to vitals and monitor the charge pressure at start up , then seat bar down and push to operate button depressed you will see the charge pressure fall off and not recover , and if you did a pressure test you would find the pressure way down ---------------just letting you know the worst case so you don't start putting money and time into it , pecking around and not getting to the real problem and it become a money pit that never ends , sometimes a deal thats too good to be true, really isn't</p></blockquote><p></p>
[QUOTE="Fishfiles, post: 33624, member: 782"] Worst case senerio is what you may be looking at , the both problems can go together as you think , I seen it quite a few times now on the T300 and 250 where it is total burn up of the hydraulic system caused by the operator continue to run the machine with brake problems and the hydraulic system is like a blender and grinds up all the fragments , which over loads the case drain filters and makes it by and get stuck in reliefs and aux coil stem valves which could be why your aux is sticking on , the trash will take out the gear/charge pump and the sunstrand , I seen one these jobs last week that cost $19,000 at the dealer to change both travel motors , the sunstrand , gear/charge pump , flush the system and clean all the reliefs , and stem valves , if the machine is a little older and this is the case then it is really not worth putting that amount of money into it -------------I would hook a hose to the aux quick couple and pump a gallon of oil into a clean bucket and look for the golden sheen in the oil , if you let the oil sit you won't see it , it needs to be stirred up , if it's funky an oil analysis would be helpful , I'd also check whats in the hydraulic filter and case drains , the dealer that worked on should have clean the case drains if they evaluated the brakes where bad so you might not find alot there now , I would bet if you set your display to vitals and monitor the charge pressure at start up , then seat bar down and push to operate button depressed you will see the charge pressure fall off and not recover , and if you did a pressure test you would find the pressure way down ---------------just letting you know the worst case so you don't start putting money and time into it , pecking around and not getting to the real problem and it become a money pit that never ends , sometimes a deal thats too good to be true, really isn't [/QUOTE]
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Bobcat Compact Track Loaders
T300 with no real lifting power
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