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Bobcat Excavators
97 bobcat331 dipper arm not working
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<blockquote data-quote="Fishfiles" data-source="post: 62397" data-attributes="member: 782"><p>there is no bleeding , it self bleeds , if air is getting in then it would pretty much have to be the pump cavatating -------the spools are in the controll valve , each bank ( function ) has a spool that shifts back and forth and directs the oil flow between the in -out , left -right , forward -backwards , on a machine like yours , a low over high pressure joystick controll, the swing , boom, dipper and bucket are fluid driven , the tracks are linkage and the dozer blade is a cable if I remember right , the low pressure oil in controlled by the joysticks , it sends oil to the cap on the spool where an oring around the end of a piston connected to the end of the spool moves the spool , a spring keeps the spool center in netraul , the oil moves the spool to open and let high pressure flow to the curcuit desired ---------- fishfi</p></blockquote><p></p>
[QUOTE="Fishfiles, post: 62397, member: 782"] there is no bleeding , it self bleeds , if air is getting in then it would pretty much have to be the pump cavatating -------the spools are in the controll valve , each bank ( function ) has a spool that shifts back and forth and directs the oil flow between the in -out , left -right , forward -backwards , on a machine like yours , a low over high pressure joystick controll, the swing , boom, dipper and bucket are fluid driven , the tracks are linkage and the dozer blade is a cable if I remember right , the low pressure oil in controlled by the joysticks , it sends oil to the cap on the spool where an oring around the end of a piston connected to the end of the spool moves the spool , a spring keeps the spool center in netraul , the oil moves the spool to open and let high pressure flow to the curcuit desired ---------- fishfi [/QUOTE]
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97 bobcat331 dipper arm not working
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