Recent content by Gus1957

Now that my BH77 is back working I wanted to dig out the rock I had to keep lifting the mower deck for. Found it to be big to lift out. So dug the hole to the side and flipped it sideways and reburied it in place. Hope it stays down there till after I'm dead. If I really need it out of there I...

Hello, I'm willing to pay $50 along with a Flat Rate shipping bag cost. I can use F&F PayPal I want a valve that has failed, but never taken apart. I want to measure the inside parts. Spring , shafts and O-rings.

Dan, I talked with a Kubota engineer in Texas that also worked in Japan and he agrees with you that it is a pressure relief valve. He was baffled why the service tech didn't use gauges and follow the WSM. He had me remove both lower relief valves and check ends for dirt and functioning. I...

Dan, Are there photos in the WSM on how to hook up the pressure testing equipment and the procedure for each valve? I have a 3,000 PSI oil gauge. I there a link to the WSM that I can access? As it stands now the Kubota Service Tech that came didn't have the fittings to hook up to the valves...

1.Trying to better understand the relief valves. Internally they are only a based on strength of the spring. If there is no dirt or metal contamination - what could be wrong with it after 100 hours? 2. Tech said he could take valve bank apart here and with pressure relieved removing the 1st 2...

Dan, Based on your comment here then it would be the upper relief valve that is open since when I swapped the lower ones the boom worked properly for 5 hours ? Does that make sense? He said the parts person told him that when you get the valve body block it comes with bot relief valves in...

05/12/2026 Kubota road tech was here to trouble shoot boom problem. > FYI: I switched the pressure relief valves from the stabilizer to the boom to be able to continue working that day. And after 5 hours boom in control went totally dead. Had to lift boom with my other tractor to get boom into...

Hi Dan, I'm going to add the update to the Repair Section thread I started since the Kubota road tech was here today. TY

Dan, I do appreciate your responses. I'm not a tractor mechanic, but a good machinist. Bothers me that they don't sell any of the internal PRV parts and test them to know why they failed. From postings here others have had the same/similar problem. Here is my rationale for my actions. I...

I had this in the repair section earlier. This in previously dug dirt they filled in with all sizes of rocks about 18" down. Nothing that hard. Tractor sat in the barn all winter and first time out. Boom was drifting down rapidly. Then it lost power being able to bring boom in while digging...

Thank you Dan, My unit was $8K 10 years ago. I should have bought a spare just for the hydraulics. Sticker Shock on the individual valves and the complete valve assembly for $6K. And now I found a post on here from 2017-2022 with the same problem, but the valve bodies look different. Not sure...

Has anyone just bought backhoe lately and can share the price? TY

Dan, Can you explain how to test this relief valve ? Have you seen this problem on a BH77 ? I'm going to remove it and take a look at it to start. Ask my Kubota dealer if they can test it. I was thinking it would be a $100 part, but not even close: Messicks $582.08 TY

Shawn, Yes loader and other Backhoe hydraulic controls work as normal. I'll play with loaded height tomorrow and look at level. My sight glass is silver which doesn't help with contrast trying to see level with old eyes. Mine has a gear transmission. TY