Reinstalling The Backhoe/Front End Loader Sub-Frame; Kubota B7100

[@LarryStouffer-tr2er]

I have a b8200 can you tell me any thing about this tractor hydraulic are jumping

[@abundantlifehomestead3100]

Jumpy, jerky, or ratcheting hydraulics on any tractor can be caused by a few different things. First would be clogged filters. Clogged filters cause intermittent highs and lows in the hydraulic pressure. Your tractor has a spin on type filter and permanent type hydraulic screen(s) similar to my b7100. Second would be low fluid causing the same condition. Third would be water contamination or air in the system. Water and air will compress where hydraulic oil does not. Every little bit of water or air that enters the ram has to compress before it moves further. Fourth would be worn out valves. Valves in need of rebuilding will often push adequate fluid to the ram, but immediately bleed back some of that fluid under pressure. Fifth and last thing I can think of at the moment would be a damaged or bent hydraulic cylinder. This would usually be obvious damage to the chrome push rod part of the cylinder. Check out my video here where I cover basic hydraulic service: kzbin.info/www/bejne/hnKtp3usZ9KBibs Your tractor is similar to mine though not exactly. Your filters and screens will look the same but are in different locations. (Screen on right side of transmission, filter on left, on a b8200) Do a basic service on your hydraulics, run it a few hours, check for leaks and see if the condition continues. That will rule out a lot of the possible problems.