I have a 2001 LS180 it has a little over 800 hours. The hydraulics are weak when the machine is warm Specifically when curling in the bucket and when raising the bucket. Doesn't have any issue lowering or when dumbing the bucket. I have changed the fulid and filter still no change. I read somewhere online one person had similar problems and was told to check/ replace the relief valve. Hoping it's not the pump. Any ideas what I try or do from here. Thanks