I have a LA723 on my 3130 and it doesn't drop; however, one of my hoe's stabilizers and the bucket curl slowly drop over time. The boom, swing and other stabilizer do not move at all.
Is this normal for one to hold and another to drop? Only if YOU, the equipment owner, accept it as such.
The cylinders move because somewhere within the system, the seals are not holding or components have failed; thereby, allowing fluid to pass from high pressure to low. This is basic "Hydraulics 101."
Without the knowledge and correct tools, finding the cause can be time consuming and expensive. Which system component is the culprit? ...cylinder(s)? ...control valve? ...relief valve? ...pump? ...or maybe multiple components have failed?
Most owners and dealers are not hydraulic experts, so troubleshooting is, at best, a parts changing guessing game. Sometimes you get lucky; sometimes you don't.
No dealer can get warranty payment on 6 hrs. of his time for a job that should have taken 2 hrs. So, with all of this known risk, what would you say when a customer asks you, "Hey, is this normal?"
Again I say, if you are happy to live with it, so be it. But, in time, that component failure will get worse. As it does, you are losing more and more system performance. A cylinder now takes 1 hour to bleed down whereas, last week it took overnight; therefore, loader lifting capacity may now be only 700 lbs instead of 900. No doubt this will occur just beyond the end of the warranty period. (Don'tcha love Murphy's Law!!!)
Good luck with you decision.
bucky4
