PDA

View Full Version : How to fill this Hydraulic cylinder



Mr Fixit
04-25-2015, 02:40 PM
Hello Group,
I am in the process of rebuilding this bandsaw and need advice on how to fill the hydraulics. There are no fill ports, the top screws off, no spring pressure, and I assume (I now what that makes me) that you just fill it, but how much and will floor jack fluid work for this cylinder?
Sorry for the bad pic's phone not the best, hopefully you get the idea.
http://i.imgur.com/6SKrGPK.jpg
http://i.imgur.com/sZhoMN9.jpg
http://i.imgur.com/RkyOFYs.jpg



TX
Mr fixit for the family
Chris

macona
04-25-2015, 03:27 PM
Those cylinders usually have a one way valve built into the piston. So Put the orange hose in a container of oil (atf) and lift the saw up and down unil air stops coming out of the flow valve. That will get most of the air out.

becksmachine
04-25-2015, 04:03 PM
Yes, unscrew the top and pour it in on top of the piston.

If you do this in the full down position, there probably won't be enough air left in the system to bother. If there is, just replace the cap and cycle the saw frame to it's extremes a couple times and then remove the cap again and refill.

The fluid just circulates from one side of the piston to the other side, modulated by the feed valve on the downstroke and through a check valve somewhere on the upstroke. The Kalamazoo I had, had a solid piston with an external check valve.

Dave

flylo
04-25-2015, 06:32 PM
That's great the Wells was made a few miles south of Kalamazoo.

Mr Fixit
04-25-2015, 08:20 PM
Thanks Guys.
It sounds like the level, or amount is not an exact science. I will fill it and see how it goes and let you know if that are any other questions or problems.

TX
Mr fixing for the family
Chris :)

wierdscience
04-25-2015, 08:55 PM
In case you don't have it already,a PDF of the parts manual for your saw-

http://vintagemachinery.org/pubs/2214/3646.pdf

Wells is a great company,the two or three times I have called needing parts or manuals they have been more than helpful.

Lew Hartswick
04-26-2015, 10:02 AM
I have the same problem with a Kalamazoo at school. No instructions on troubleshooting it. Either a leaking check valve or low fluid.
Any suggestions? Thanks.
...lew...

garyhlucas
04-26-2015, 12:18 PM
My experience with the cylinders on saws is that if there is any air in the lower end of the piston they be bouncy and not do a good job of dampening the motion. So I would fill it, pull the shaft all the way out so all the oil travels to the bottom end. Then turn it upside down and shake it a bit until the air rises to the hose. Then push the rod back in slowly to push the air up hose to the top end. Flip it back over and reinstall.

digr
04-26-2015, 06:29 PM
I have the same problem with a Kalamazoo at school. No instructions on troubleshooting it. Either a leaking check valve or low fluid.
Any suggestions? Thanks.
...lew...There is a trouble section in this manual (http://www.vintagemachinery.org/pubs/detail.aspx?id=7226)for the ram

mickeyf
04-26-2015, 07:21 PM
The moon must be in the right phase for bandsaws. The saw I just mentioned in my post here (http://bbs.homeshopmachinist.net/threads/66757-Oil-filled-submersible-pump-Which-oil) is probably one of those models of Kalamazoo, and that info will likely be useful to me also. Thanks!