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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat 743 lift arm drift
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<blockquote data-quote="Tazza" data-source="post: 3291" data-attributes="member: 82"><p>This is something i was actually going to cover when i found time.</p><p>I read an article that dealt with cylider creap, most people believed that when a double acting cylinder creaps it is a problem with the piston seal but its not. If there are no external leaks out of the cylinder it is a valve leakage problem, just like you have.</p><p>What model machine do you have? do you know what control block you have, as in brand wise?</p><p>I have a 731 that had a gresson control block, i had the same problem. I would lift my arms and they would slowly fall on their own. I pulled the control block out and replaced the seals in the load checks, the seals were all shredded, this is most likley where your problem is. Some of the later machinkes use a bobct brand control block, their load checks are different, basically a spring and poppet that is easaier to replace.</p><p>Gaining access is your biggest problem, removig the block is equally hard.</p><p>Someone else may have an idea.</p><p>Also, welcome to the forum!</p></blockquote><p></p>
[QUOTE="Tazza, post: 3291, member: 82"] This is something i was actually going to cover when i found time. I read an article that dealt with cylider creap, most people believed that when a double acting cylinder creaps it is a problem with the piston seal but its not. If there are no external leaks out of the cylinder it is a valve leakage problem, just like you have. What model machine do you have? do you know what control block you have, as in brand wise? I have a 731 that had a gresson control block, i had the same problem. I would lift my arms and they would slowly fall on their own. I pulled the control block out and replaced the seals in the load checks, the seals were all shredded, this is most likley where your problem is. Some of the later machinkes use a bobct brand control block, their load checks are different, basically a spring and poppet that is easaier to replace. Gaining access is your biggest problem, removig the block is equally hard. Someone else may have an idea. Also, welcome to the forum! [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat 743 lift arm drift
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