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Hanix H56c digger
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<blockquote data-quote="Hesston4860s" data-source="post: 6641428" data-attributes="member: 323"><p>It is a Nachi pump a PVD 2B, I got it today to actually do something, I’m not sure what I’ve done to get it to do it tho !. It will now move all functions but not at the correct speed or pressure, for example on pulling the joystick for boom lift the main pump swashes the boom lifts but only with around 1000 psi (my Takeuchi with a 15B pump for the same service will provide 2300 psi). The only thing that does appear to be working correctly is the AUX circuit, with a gauge on the gear pump which now runs 300 psi constant and then with AUX engaged I then get 800 psi (same as on my Takeuchi). </p><p>With everything now doing something all be it not correctly the spool block does sound as if there’s air being pumped round in it (cavitation ?).</p><p>When I first struck it up it did hardly move and everything slowly got better till it ended up working as above, it’s almost as if it’s got an air lock.</p><p>Kind of don’t know where to go with from here, 2 other people have been out to it before me 1 being T C Harrison another an independant digger guru and 1 of the owners chaps has had a go at it aswell.</p></blockquote><p></p>
[QUOTE="Hesston4860s, post: 6641428, member: 323"] It is a Nachi pump a PVD 2B, I got it today to actually do something, I’m not sure what I’ve done to get it to do it tho !. It will now move all functions but not at the correct speed or pressure, for example on pulling the joystick for boom lift the main pump swashes the boom lifts but only with around 1000 psi (my Takeuchi with a 15B pump for the same service will provide 2300 psi). The only thing that does appear to be working correctly is the AUX circuit, with a gauge on the gear pump which now runs 300 psi constant and then with AUX engaged I then get 800 psi (same as on my Takeuchi). With everything now doing something all be it not correctly the spool block does sound as if there’s air being pumped round in it (cavitation ?). When I first struck it up it did hardly move and everything slowly got better till it ended up working as above, it’s almost as if it’s got an air lock. Kind of don’t know where to go with from here, 2 other people have been out to it before me 1 being T C Harrison another an independant digger guru and 1 of the owners chaps has had a go at it aswell. [/QUOTE]
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Hanix H56c digger
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