RonMar
Elite Member
Richard
You might not have blown a hose, you might just have a loose fitting. I have the same hoe as you do. These hoes use an "O" ring face seal on the hose ends. One might have worked loose. There are 3 cylinder circuits in the boom. The first is the boom cylinder, the second is the Dipper and the third is the bucket curl. IF the fluid is leaking out of the base of the boom arm, I would guess it is probably from the bucket curl lines. These start at the valve as hoses and run up into the base of the boom. Here the hoses have fittings that connect to hard metal pipes. Up near the top of the boom arm section, the pipes connect back to hoses to pass over the boom-dipper arm pivot. One of these 4 fittings may have come loose. Unfortunatly they are not all that easy to get to. The upper two fittings are not all that bad, but if the bottom two are loose, you may have to stretch the boom all the way out and lay it down on something solid, then remove the boom cylinder fittings and the end pins and lift the boom cylinder up out of the way to get to the bottom bucket curl fittings
The main boom cylinder is the most stressed in the system, lifting all the boom weight and whatever you have put in the bucket. It is also doing this in it's retract mode, which has less available force than in it's extension mode. The pressure doing this heavy work is exposed to the rod seal, and this seal could be failing and allowing fluid to pass along the rod when you lift the boom. This would also leak fluid where you have indicated.
Get in there with a rag and wipe things clean, then fire the unit up and look for fresh fluid. Be sure you wear eye protection. Hydraulic fluid has a nasty habit of squirting places you don't want, when you least expect it. Make sure all the weight is off the parts and all the valve controls have been cycled to relieve pressure before you go to remove any fittings.
Good luck
You might not have blown a hose, you might just have a loose fitting. I have the same hoe as you do. These hoes use an "O" ring face seal on the hose ends. One might have worked loose. There are 3 cylinder circuits in the boom. The first is the boom cylinder, the second is the Dipper and the third is the bucket curl. IF the fluid is leaking out of the base of the boom arm, I would guess it is probably from the bucket curl lines. These start at the valve as hoses and run up into the base of the boom. Here the hoses have fittings that connect to hard metal pipes. Up near the top of the boom arm section, the pipes connect back to hoses to pass over the boom-dipper arm pivot. One of these 4 fittings may have come loose. Unfortunatly they are not all that easy to get to. The upper two fittings are not all that bad, but if the bottom two are loose, you may have to stretch the boom all the way out and lay it down on something solid, then remove the boom cylinder fittings and the end pins and lift the boom cylinder up out of the way to get to the bottom bucket curl fittings
The main boom cylinder is the most stressed in the system, lifting all the boom weight and whatever you have put in the bucket. It is also doing this in it's retract mode, which has less available force than in it's extension mode. The pressure doing this heavy work is exposed to the rod seal, and this seal could be failing and allowing fluid to pass along the rod when you lift the boom. This would also leak fluid where you have indicated.
Get in there with a rag and wipe things clean, then fire the unit up and look for fresh fluid. Be sure you wear eye protection. Hydraulic fluid has a nasty habit of squirting places you don't want, when you least expect it. Make sure all the weight is off the parts and all the valve controls have been cycled to relieve pressure before you go to remove any fittings.
Good luck
