Hi, I recently took a chance on purchasing a jd510c that needed a main hydraulic pump. After checking around and getting quotes on buying a refurbished one I decided to try my hand at rebuilding the old one. I should add too that the backhoe sat around for at least two years and needed lots of tlc. I was successful in the rebuild and we managed to get it moving . The hydraulics were slow at first and we discovered multiple leaks which we fixed and now they are much faster. During the fixing stage we noted it was becoming difficult to start and we used a large industrial charger at 200 amps to get it going. To make a long story short , cleaned connections put in a new battery and all went fine for a few days until I got it stuck in the mud and had a hydraulic major leak near the front . After starting and stopping it many times the battery ran down but we eventually boosted it and got it out. We fixed the leak , had difficulty starting , boosted it , ran it all day and it worked great , but at end of day filled the front bucket and headed up the lane where it died . We were able to start it once but it died again . After boosting several times with no luck
the batteries are not charging enough.
I'm wondering if perhaps with the full bucket and going uphill, if the electronic destroke solenoid might be malfunctioning creating a high amp to start. That solenoid got soaked when the major leak occurred.
We did take the starter solenoid off and it was in need of a good cleaning but is working for sure after cleaning it .
Any thoughts ?
I also had to replace a line that goes from the hydraulic cooler to the torque converter. I'm not sure if the lines to the cooler are correct . There are three 3/4 lines going to the cooler on the right side as I look from the front. One goes from the pump to the upper most connection. I installed the two torque converter lines to the other two connections, but not sure which line should go to the bottom and which to the middle?
the batteries are not charging enough.
I'm wondering if perhaps with the full bucket and going uphill, if the electronic destroke solenoid might be malfunctioning creating a high amp to start. That solenoid got soaked when the major leak occurred.
We did take the starter solenoid off and it was in need of a good cleaning but is working for sure after cleaning it .
Any thoughts ?
I also had to replace a line that goes from the hydraulic cooler to the torque converter. I'm not sure if the lines to the cooler are correct . There are three 3/4 lines going to the cooler on the right side as I look from the front. One goes from the pump to the upper most connection. I installed the two torque converter lines to the other two connections, but not sure which line should go to the bottom and which to the middle?
