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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
853, hydrostatic pump leaks on top, easy to fix??
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<blockquote data-quote="thetool" data-source="post: 20451" data-attributes="member: 1534"><p>It's not difficult, but you probably won't agree until after you've done it once......=).</p><p>What they don't show in the manual is all the steering linkage and centering gear you've got to get out of the way first.</p><p>And yes, since your tank is above the pump behind the seat, you will loose some oil. I suggest clean-catching and re-using your oil first, since you've never done it, if your oil is good. If not, dump it and put in new, along with a filter....that can never hurt, and there's not a LOT of oil.</p><p>You need to mark and remove the linkage bars first, then remove the spring from the centering plate above your pump. Then you remove the lever from the leaking shaft. It has a squeeze-bolt. Remove the bolt then gently pry the lever off. Then you're ready to do it by the book.</p><p>You've got bolts holding a slide bracket and cover that carries a shaft seal, and there's a quad-ring under that. The shaft does not come out. Get a new seal and quad-ring. Punch out the old seal and seat the new one with an appropriatley-sized socket.</p><p>What I can't remember is if you have a tube coming down through the centering plate. If you do, instead of sliding the centering plate off and removing it, just slide it off and rotate it out of the way. Careful not to loose your slide bushings, they're just hanging in the plate and like to disappear when you slide the plate off the guide pins. You might have white platstic screwed-on guide bushings, which suck but stay put. They're easy to break, tho.</p><p>If your centering was okay when you started, you don't need to mess with the blocks bolted to the centering plate. Adjusting those blocks sets your neutral. If you leave them be, it will be alright when you put it back together.</p><p>Good Luck.</p></blockquote><p></p>
[QUOTE="thetool, post: 20451, member: 1534"] It's not difficult, but you probably won't agree until after you've done it once......=). What they don't show in the manual is all the steering linkage and centering gear you've got to get out of the way first. And yes, since your tank is above the pump behind the seat, you will loose some oil. I suggest clean-catching and re-using your oil first, since you've never done it, if your oil is good. If not, dump it and put in new, along with a filter....that can never hurt, and there's not a LOT of oil. You need to mark and remove the linkage bars first, then remove the spring from the centering plate above your pump. Then you remove the lever from the leaking shaft. It has a squeeze-bolt. Remove the bolt then gently pry the lever off. Then you're ready to do it by the book. You've got bolts holding a slide bracket and cover that carries a shaft seal, and there's a quad-ring under that. The shaft does not come out. Get a new seal and quad-ring. Punch out the old seal and seat the new one with an appropriatley-sized socket. What I can't remember is if you have a tube coming down through the centering plate. If you do, instead of sliding the centering plate off and removing it, just slide it off and rotate it out of the way. Careful not to loose your slide bushings, they're just hanging in the plate and like to disappear when you slide the plate off the guide pins. You might have white platstic screwed-on guide bushings, which suck but stay put. They're easy to break, tho. If your centering was okay when you started, you don't need to mess with the blocks bolted to the centering plate. Adjusting those blocks sets your neutral. If you leave them be, it will be alright when you put it back together. Good Luck. [/QUOTE]
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General Bobcat Skidsteer Forum
853, hydrostatic pump leaks on top, easy to fix??
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