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New Holland Skidsteer Forum
L785
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<blockquote data-quote="onyxtour" data-source="post: 5134" data-attributes="member: 740"><p>I found a good explanation of how the piston pumps operate at this web site http://www.answers.com/topic/axial-piston-pump; and on another learned that any scoring on the valve plate or block can be stoned up to .0002, so as not to remove any hardness. This is not to say i observed any scoring, but if there were scoring it would keep the block and plate from making a tight enough seal to produce the required out-put energy; in that rather than the fluid going directly through the hole in the valve plate a greater percentage would be lost between the plate and block due to the seperation and therefore not enough juice to produce...internal leakage. After reading the information on this above-referenced web site, however, it appears that as long as the pistons are properly following the surface of the swashplate, with the swashplate properly functioning, everything should work fine; with no blockages in the pistons themselves, of course.</p></blockquote><p></p>
[QUOTE="onyxtour, post: 5134, member: 740"] I found a good explanation of how the piston pumps operate at this web site http://www.answers.com/topic/axial-piston-pump; and on another learned that any scoring on the valve plate or block can be stoned up to .0002, so as not to remove any hardness. This is not to say i observed any scoring, but if there were scoring it would keep the block and plate from making a tight enough seal to produce the required out-put energy; in that rather than the fluid going directly through the hole in the valve plate a greater percentage would be lost between the plate and block due to the seperation and therefore not enough juice to produce...internal leakage. After reading the information on this above-referenced web site, however, it appears that as long as the pistons are properly following the surface of the swashplate, with the swashplate properly functioning, everything should work fine; with no blockages in the pistons themselves, of course. [/QUOTE]
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