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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
charge pressure dropping under load
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<blockquote data-quote="Fishfiles" data-source="post: 7130" data-attributes="member: 782"><p>In case you didn't know a 630 s/n 12999 down the charge pressure is 80-90 psi , s/n 13000 up is 120-200 , ---------------when you checked the bronze case drain filter was there much junk in it , have you changed the hydraulic filter lately , not that it would help your problem but to cut it open and to see whats in it could give and idea what's up , I have just learned from the Ace at the local dealer than charge pressure can be lost in a bad drive pump ( sunstrand) , but the rotating group usually will put golden colored particles in the system when it wears , from what you say about heating up and dropping pressure sounds like a charge pump senirio</p></blockquote><p></p>
[QUOTE="Fishfiles, post: 7130, member: 782"] In case you didn't know a 630 s/n 12999 down the charge pressure is 80-90 psi , s/n 13000 up is 120-200 , ---------------when you checked the bronze case drain filter was there much junk in it , have you changed the hydraulic filter lately , not that it would help your problem but to cut it open and to see whats in it could give and idea what's up , I have just learned from the Ace at the local dealer than charge pressure can be lost in a bad drive pump ( sunstrand) , but the rotating group usually will put golden colored particles in the system when it wears , from what you say about heating up and dropping pressure sounds like a charge pump senirio [/QUOTE]
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charge pressure dropping under load
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