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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
funky drive still
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<blockquote data-quote="Tazza" data-source="post: 1177" data-attributes="member: 82"><p>If your hydraulics are still working I would say its not your hydraulic/charge pump...... It sounds like when the oil is heating up it is thinning out causing it to either cavitate or bypass the pistons in your hydrostatic pump. This one seems like a question for JustAwrench, i'm sure he would know how to fault find a hydrostatic system better than i can. The only other thing i can think of is an oil problem? it may be too thin or its thinning out too much when warm. A synthetic oil may solve this but don't quote me. The hydrostatic pump is repairable, BUT don't even attempt it without a diagram of the pump. The hydraulic pump is also repairable, they are a simple vane pump. but if your lift arms still work and seem to be strong i would think that it is not the problem (still delivering correct hydraulic pressure). If you pull your lift arms down or tilt rite back and hold it you should hear a whistle sound of the relief valve opening up so you are getting enough pressure. Hopefully i am not wrong here and if i am i'm sure JustAwrench will tell me.</p></blockquote><p></p>
[QUOTE="Tazza, post: 1177, member: 82"] If your hydraulics are still working I would say its not your hydraulic/charge pump...... It sounds like when the oil is heating up it is thinning out causing it to either cavitate or bypass the pistons in your hydrostatic pump. This one seems like a question for JustAwrench, i'm sure he would know how to fault find a hydrostatic system better than i can. The only other thing i can think of is an oil problem? it may be too thin or its thinning out too much when warm. A synthetic oil may solve this but don't quote me. The hydrostatic pump is repairable, BUT don't even attempt it without a diagram of the pump. The hydraulic pump is also repairable, they are a simple vane pump. but if your lift arms still work and seem to be strong i would think that it is not the problem (still delivering correct hydraulic pressure). If you pull your lift arms down or tilt rite back and hold it you should hear a whistle sound of the relief valve opening up so you are getting enough pressure. Hopefully i am not wrong here and if i am i'm sure JustAwrench will tell me. [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
funky drive still
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