My {O&K RH9.5} aka NH EC270 is having bucket control problems ? When you ask for a scoop or dump she tends to stall valve and engine almost ? Bucket barely moves ? If you combine stick movement the bucket works at 70 % both directions . So I am not sure what is going on ? Some times it is almost normal , mostly overloading pump as it seems . Any input would be great !!!!
Good day digs Do you have a hydraulic schematic so we may point you in the right direction? Kind regards Uffex
Unfortunately I have very little on this one . Thanks for the offer ! I would be happy to buy a book if you may know where to acquire such info .
To the best of my knowledge the New Holland & the Kobelco are almost the same machines that may help to explore the information. Kind regards Uffex
I know there is cross over on brands , This is badged O&K . I will look into Kobelco models . CNH has some support for me but no solid dealers I know of ? Would be nice to be able to discuss issues as well as buy parts . THANK YOU Uffex !
I can see a manual at "therepairmanual.com" not sure what it includes but it is specific for NH 270. KR Uffex
Thank you Uffex , I have the info . I will try an adjustment on the bucket cylinder equalizer valve . I will be sure to follow up ,
I can email you service manual .Whats your email?
Thx toolking , I have the info .
Ok,so I have been fooling with the valve on the bucket cylinder .major changes in response with small adjustments. This leads me to a rebuild kit for that valve.CNH says unsupported? Would prefer parts on hand before disassembley . Any Ideas ?
I have a ec 450 -- O&K RH23.5 Parts are a nightmare- be prepared to take to take of the component and take it to a Hydraulic shop for repair or replacement- It will take time. Sorry M
I know the O&K hurdles all to well . l did find a local dealer who is able to order parts . So now I’m going to check out my restrictor valve and proceed from there . The RH 23 must be a beaut !
Whats the dealers name-- Always more info is better-- The Machine is cherry- only 7000 hrs and engineered like a porshe with a VW price
Monroe tractor in Worcester,ma .There are other branches . Case excavator dealers can help ,also new holland
Up date , I discovered the hyd oil level was a bit high ? Over filled by accident likely ? So I decide to look at the filters which I replaced when we got machine . I had new ones left over from the 12 we had . The filters were badly restricting very dirty . I put new filters in today , one was burst and I could barely pull it out . Once running I noticed functions back to normal , however there is pump noise which developed over the past couple weeks of short runs to keep progress on the job . So now I think more damage may have occured due to a simple oversite ? Or a combo of dirty filters and lots of fluid and unable to take down for repairs early ? Oh well ? Points to how important hyd oil filter changes are on these O&K units ! Thanks for the help on the subject to all ! Any and all info is a huge help !!!
Did you check the suction screen in the tank if debris got into the tank and plugged this screen it could be causing the pumps to Cavite
I was not aware of a screen in the tank . Thanks I will look into it .