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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
440B Jumpy Hydraulics
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<blockquote data-quote="Tazza" data-source="post: 4218" data-attributes="member: 82"><p>You need the oil to be thicker for your hydrostatic system, if its too thin it doesn't lubricate well enough and can destroy your pumps. Hydraulic oil is fine for hydraulic cylinders and pumps but for your hydrostatic pumps and motors it just isn't good enough from what i have been told. Stick with 10W30 or 10W40 motor oil, if in doubt call your local dealer, they will confirm what oil you should be using in your machine.</p><p>Your hydrostatics are fine? no jumpiness or noises? the only other thing i could think of that could cause your hydraulic pump to cavetate is a restriction in your suction line filter (if there is even one fitted). Usually if there is a blockage it will affect your hydrostatics too as your hydraulic pump is also your charge pump for the hydrostatic pump.</p></blockquote><p></p>
[QUOTE="Tazza, post: 4218, member: 82"] You need the oil to be thicker for your hydrostatic system, if its too thin it doesn't lubricate well enough and can destroy your pumps. Hydraulic oil is fine for hydraulic cylinders and pumps but for your hydrostatic pumps and motors it just isn't good enough from what i have been told. Stick with 10W30 or 10W40 motor oil, if in doubt call your local dealer, they will confirm what oil you should be using in your machine. Your hydrostatics are fine? no jumpiness or noises? the only other thing i could think of that could cause your hydraulic pump to cavetate is a restriction in your suction line filter (if there is even one fitted). Usually if there is a blockage it will affect your hydrostatics too as your hydraulic pump is also your charge pump for the hydrostatic pump. [/QUOTE]
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440B Jumpy Hydraulics
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