L5030 Loader valve question

NathanJ

New member

Equipment
L5030HST
Sep 19, 2018
2
0
0
Northern Virginia
I have a L5030 HST open station with LA853 loader and L2213 valve controller with just under 1000 hours.

I have 2 issues with my loader that I am trying to find out if they are normal or not. First issue is that when I push the controller to the right to dump the bucket, just before the bucket hits the travel limits the cylinder flops fully extended without control. If I walk to the bucket I can swing it freely forward and back and watch the bucket cylinders move in and out because the cylinders are obviously not completely full of hydraulic fluid on both sides. If I continue to dump after the bucket hits the limit after a moment I can see the hoses flex and it is obvious that the cylinder has filled with fluid. I can dump with full right joystick and the cylinder seems to probably stay full of fluid. It seems very strange to me that the cylinders can appear to get air in them each time I dump like that.

My second issue is that both the boom and curl cylinders creep down and do not hold in the air. If I put the bucket in the air and then disconnect all 4 quick connects the boom and curl stay indefinitely. I have pulled the spools out to inspect for wear and they looked virtually brand new. I don't have any external leaks on the cylinders or the valves. I have also inspected the check valves and found a tiny piece of debris that I removed but that didn't change the condition.

Can a Kubota normally hold the boom and bucket in the air without creeping down?

Hopefully I made my questions clear enough,
Thank you,
Nathan
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
33,502
8,773
113
Sandpoint, ID
It sounds like your first issues is just fast dump, it sounds normal to me.

Your second issue is rather common, it is not desirable, but the only fix is to replace the valve body and hope the new one has a tighter seal.
 

NathanJ

New member

Equipment
L5030HST
Sep 19, 2018
2
0
0
Northern Virginia
I was wondering if it could be fast dump after I looked at the manual and saw that was the first position you come to from neutral. It seems strange that fast dump isn't near the right extreme.