Re: Cylinder Kit Help

Posted by tom upton on December 30, 2019 at 17:12:59 from (104.249.226.168):

In Reply to: Cylinder Kit Help posted by connor9988 on December 30, 2019 at 11:21:50:

Seals will be available at any decent hydraulic shop, but you will need to take apart, identify and measure each one, so might be best to just take nut off piston, pull piston off and rod gland as there will be seals, wiper, and if your lucky a plain bearing of some sort inside it that most likely needs replaced or your new piston seal may leak from too much side to side movement, then just take to your local hydraulic shop and have them measure up and supply new for u to put back together?? Anyway I am sure you will figure that out. I just wanted to point out a couple things:#1 By what I can see in pictures the style of cylinder you have could be used for single acting or double acting, It probably has a vent/filter of some kind on cap/top end port.
#2 the big problem with this cylinder being used for single acting is every time rod retracts it sucks in moisture, and some degree of contaminant, eventually rusting/pitting rod and more critical the cylinder bore which makes it difficult to get a good seal between piston cup and bore.
Not wanting to discourage you, and maybe yours is fine, but before you bother with new seals take a good look inside bore.
A better ( in some ways) single acting cylinder has no piston seal per say. It just has a large rod inside a relatively small cylinder and force is based on the area of the rod. This means cylinder has no vent and always has oil in it even when retracted. You can usually find one of these cylinders at tractor wrecker easily id'd by one port into cylinder. Just make sure rod is in good shape, and worst case scenario you need a seal kit for rod gland. ( or go buy a new cylinder at harbour freight or princess auto?)

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