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Bobcat Skidsteer Forums
Bobcat Excavators
328 Hyd pump sucking air
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<blockquote data-quote="Tazza" data-source="post: 54065" data-attributes="member: 82"><p>That's the worst thing about gear pumps. As the bearings wear they start to chew the pump housing. The more they wear the more they eat it. You replace the bearings, your pressure drops of as the clearance between the gears and housing are wrong. Vane pumps compensate for this with the vanes just extending slightly further.</p><p>I guess its the nature of the beast. Just a shame its such an expensive repair....</p></blockquote><p></p>
[QUOTE="Tazza, post: 54065, member: 82"] That's the worst thing about gear pumps. As the bearings wear they start to chew the pump housing. The more they wear the more they eat it. You replace the bearings, your pressure drops of as the clearance between the gears and housing are wrong. Vane pumps compensate for this with the vanes just extending slightly further. I guess its the nature of the beast. Just a shame its such an expensive repair.... [/QUOTE]
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328 Hyd pump sucking air
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