Hey gang,
Im having some major hydraulic issues and bad luck. Here is what happend. Cleaning snow from the driveway 3 days ago all was good. The last pass the hydraulics strated to pulsate!!!! Stopped checked the oil it was at add on the stick. parked it till the next morning and changed the filter cleanned the strainner and refilled it to the full mark. Tried it and it was still pulsating on idle only when activating any valve to full open. Still had lots of power and speed when reving up. worked it a for a few minutes and the oil cooler line came apart under the machine. The previous owner made a splice in the line with a 1/2 copper tube with gear clamps and it came apart. I lost 7.5 gals of oil. repaired the line and topped it off again. Started to run it again and lost most of the controls after 5 min of running all in one shot not gradualy???? Very slow and hamering. Got the loader lifted to the end of its strock and bloked the lift cylinder. Checked the case drain at 1800 rpm and only got a few drops coming out and then nothing at all was comming out after 10sec of running. Shut it down and then took the charge pump off and checked it out. It looked like new. Even whent to a hydraulic shop and got it looked at, they seen nothing wrong with it. So now it took out the main pump and will bring it to that shop to bench test it to see if its still good. Anybody here have any other ideas as to what it could be?????? Main relief valve, strock control, priority valve??? Anything else im missing? I dont have any testing gages but i can one of the tecks to come for 100$ per hour if needed. I would like to do the simple stuff first on my own before paying the 100$ per hour.
Thanks guys
Im having some major hydraulic issues and bad luck. Here is what happend. Cleaning snow from the driveway 3 days ago all was good. The last pass the hydraulics strated to pulsate!!!! Stopped checked the oil it was at add on the stick. parked it till the next morning and changed the filter cleanned the strainner and refilled it to the full mark. Tried it and it was still pulsating on idle only when activating any valve to full open. Still had lots of power and speed when reving up. worked it a for a few minutes and the oil cooler line came apart under the machine. The previous owner made a splice in the line with a 1/2 copper tube with gear clamps and it came apart. I lost 7.5 gals of oil. repaired the line and topped it off again. Started to run it again and lost most of the controls after 5 min of running all in one shot not gradualy???? Very slow and hamering. Got the loader lifted to the end of its strock and bloked the lift cylinder. Checked the case drain at 1800 rpm and only got a few drops coming out and then nothing at all was comming out after 10sec of running. Shut it down and then took the charge pump off and checked it out. It looked like new. Even whent to a hydraulic shop and got it looked at, they seen nothing wrong with it. So now it took out the main pump and will bring it to that shop to bench test it to see if its still good. Anybody here have any other ideas as to what it could be?????? Main relief valve, strock control, priority valve??? Anything else im missing? I dont have any testing gages but i can one of the tecks to come for 100$ per hour if needed. I would like to do the simple stuff first on my own before paying the 100$ per hour.
Thanks guys