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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
How to repair leaking lift cylinders?
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<blockquote data-quote="Tazza" data-source="post: 5304" data-attributes="member: 82"><p>All hydraulic rams are similar, Some have a clip in the end of the cylinder that holds the gland nut in place. MOST simply screw in, as you said there are 4 holes in the gland nut it should be screwed in. You need to either use a large pipe wrench on it or build a tool to remove it. The wrench will work, but will scuff the nut a fair bit.</p><p>Of course remove the cylinder first! then remove the nut.</p><p>Pull the ram stick out of the cylinder, you will then need to remove the piston from the end, these are pretty tight! that will allow you to slide the gland nut off the end where the piston was. You will need to use a pick to get the old seals out, note their directions!!! The pressure seal has like a "V" on one face, this must face the pressure side of the ram, the wiper faces our wards to keep dirt out. If they go in the wrong way they will not work. They can be a pig to get in, you need to twist them every which way to get them to locate in their grooves. Oil it all up and carefully push it back on the stick.</p><p>The piston seal should be done too, but depending on the type of seal dictates how it should be put on. Some are quite hard, others are a snap.</p><p>If you are concerned you can't do it your self, take them and the seal kits to a hydraulic shop,. they would assemble them for you.</p><p>They are very simple, but the pressure and wiper seals must go the correct way around or they will simply leak.</p></blockquote><p></p>
[QUOTE="Tazza, post: 5304, member: 82"] All hydraulic rams are similar, Some have a clip in the end of the cylinder that holds the gland nut in place. MOST simply screw in, as you said there are 4 holes in the gland nut it should be screwed in. You need to either use a large pipe wrench on it or build a tool to remove it. The wrench will work, but will scuff the nut a fair bit. Of course remove the cylinder first! then remove the nut. Pull the ram stick out of the cylinder, you will then need to remove the piston from the end, these are pretty tight! that will allow you to slide the gland nut off the end where the piston was. You will need to use a pick to get the old seals out, note their directions!!! The pressure seal has like a “V” on one face, this must face the pressure side of the ram, the wiper faces our wards to keep dirt out. If they go in the wrong way they will not work. They can be a pig to get in, you need to twist them every which way to get them to locate in their grooves. Oil it all up and carefully push it back on the stick. The piston seal should be done too, but depending on the type of seal dictates how it should be put on. Some are quite hard, others are a snap. If you are concerned you can't do it your self, take them and the seal kits to a hydraulic shop,. they would assemble them for you. They are very simple, but the pressure and wiper seals must go the correct way around or they will simply leak. [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
How to repair leaking lift cylinders?
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