I have a Jinma 284 we recently had to replace the engine after getting it all back together the loader will not raise without lifting the bucket by hand to assist it. The bucket will pivot. Prior to replacing the engine all the hydraulics worked fine. Variables that come into play is we did change the hydraulic oil and used AW46 the only equivalent of H46 i could find and H46 is what Keno Tractors recommended although Affordable Tractors in Texas thinks that is a bit thick and recommends aw32 however they think that should not be the issue.
We do know the AW46 seems much thicker than what came out of it. Another variable my neighbor (who is leading the effort to get the tractor going) when first firing up the new motor he neglected to loop the connect lines together and we got a high pitch squeel immediately shut it down and noticed that and connected it before the next try. Could the pump be damaged and that's why the loader will not lift? Steering and bucket pivot works fine. Also we tried swapping lines on the valve levers between the bucket pivot levers and same result well almost the thing did raise up about 10 inches. Also i picked up a new hydraulic filter but have no clue where to find it to change that.
Any help would be much appreciated
We do know the AW46 seems much thicker than what came out of it. Another variable my neighbor (who is leading the effort to get the tractor going) when first firing up the new motor he neglected to loop the connect lines together and we got a high pitch squeel immediately shut it down and noticed that and connected it before the next try. Could the pump be damaged and that's why the loader will not lift? Steering and bucket pivot works fine. Also we tried swapping lines on the valve levers between the bucket pivot levers and same result well almost the thing did raise up about 10 inches. Also i picked up a new hydraulic filter but have no clue where to find it to change that.
Any help would be much appreciated