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Bobcat Skidsteer Forums
Bobcat Excavators
2018 Bobcat E26 - Weak Hydraulics
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<blockquote data-quote="River Fluid Power" data-source="post: 130184" data-attributes="member: 21921"><p>It sounds like you have a weak pump. The best way to check the pump is to put a flow meter with a needle valve and gauge in the pressure line so you can load it without using the machine functions. The giveaway is that you lose a lot of flow as you increase the load to system pressure by slowly closing the needle valve. I believe your machine has a pressure compensated pump, so it will eventually drop to nearly zero psi when you shut the needle valve off on the flow meter. You will need to know what your machine system pressure normally runs at to watch for a premature drop in flow. That pressure should be above 2000 psi, so if you drop most of your flow at 2000 psi, that would point to a pump problem.</p></blockquote><p></p>
[QUOTE="River Fluid Power, post: 130184, member: 21921"] It sounds like you have a weak pump. The best way to check the pump is to put a flow meter with a needle valve and gauge in the pressure line so you can load it without using the machine functions. The giveaway is that you lose a lot of flow as you increase the load to system pressure by slowly closing the needle valve. I believe your machine has a pressure compensated pump, so it will eventually drop to nearly zero psi when you shut the needle valve off on the flow meter. You will need to know what your machine system pressure normally runs at to watch for a premature drop in flow. That pressure should be above 2000 psi, so if you drop most of your flow at 2000 psi, that would point to a pump problem. [/QUOTE]
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2018 Bobcat E26 - Weak Hydraulics
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