I acquired a great running low hour case 1840 with a grapple bucket. The bucket hydraulics work fine. The left side isn’t moving and I get a wining sound (like it’s out of fluid) if left side only lever is in reverse at full RPM. No other noise or functions at lower RPM. What get me is if the left lever is in neutral the right works fine. If I move the left lever even slightly the right doesn’t work at all either. I assume this eliminates the charge pump but I’m not an expert. Hopefully it’s a stuck relief valve or something else but I’m not an expert and need some help.
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