Jump to content

Hydraulic cylinder replace or rebuid


Recommended Posts

Well my slide out cylinders are all 3 bypassing. Bedroom is worse. It is steady stream. Likely why bedroom is giving most trouble.  Not to be unexpected on a 2003 I reckon. Now all I read is $300.00 each. I am steady working so that not a problem but I am a cheapskate by nature. Locals are rebuilding but not priced yet. Your thoughts. 

Link to comment
Share on other sites

Usually when cylinders leak it is just seals (O rings) leaking.  Cylinder rebuilding is probably cheaper.  You could do it yourself.   There are YouTube videos on how to do it.  The local hydraulic shop often has the seals needed.  There maybe kits available also.  I had some of the cylinders on my heavy equipment rebuilt but I don't do many of those because they are so big and heavy.  I have to use a lift just to remove them.

Link to comment
Share on other sites

1 hour ago, D&J said:

Before you replace or rebuild them make sure your check valves at the pump aren't leaking by.

Denny

Ok. Just what procedure one use to test that. Checking cylinders easy. Just remove hose and run pump. 

Link to comment
Share on other sites

1 hour ago, Randyretired said:

Usually when cylinders leak it is just seals (O rings) leaking.  Cylinder rebuilding is probably cheaper.  You could do it yourself.   There are YouTube videos on how to do it.  The local hydraulic shop often has the seals needed.  There maybe kits available also.  I had some of the cylinders on my heavy equipment rebuilt but I don't do many of those because they are so big and heavy.  I have to use a lift just to remove them.

This brings to mind my teenage years rebuilding a cylinder. Working part time for heavy truck shop locally. Removed cylinder from a big dump truck. Could not get that ram out. Finally owner comes over. Tells me to lock down in this vise and aim at roll up door opening. Put air to cylinder. That ram took flight. Went slap to neighbor yard. Owner stated "good shot". I had forgotten why I never rebuild one again.

Link to comment
Share on other sites

19 minutes ago, GlennWest said:

Ok. Just what procedure one use to test that. Checking cylinders easy. Just remove hose and run pump. 

On my Monarch pump I just remove and clean them.

Denny

 

 

 

 

Link to comment
Share on other sites

Posted (edited)

My pump is a DeWald. I will have to look that up. Mine moves slides but never build pressure at end of stroke. But bedroom cylinder has flow bypassing on it when I tested. Other two some bypassing. 

Edited by GlennWest
Link to comment
Share on other sites

On 3/14/2022 at 12:20 PM, D&J said:

On my Monarch pump I just remove and clean them.

Denny

 

 

 

 

Mine doesn't have check valves. The electric control unit does. I do have 3 valves that operate each slide. Bypasses fluid I believe. Called a manual jack valve. Trouble shooting stated to swap out suspected slide one with a good working slide. Try that tomorrow

Link to comment
Share on other sites

Posted (edited)

I may not work on it this weekend. Got a bad head cold and been rather under the weather for a few days. Been fabbing pipe for the shutdown and kept working. They really could not do with one of us out. So recuperating today. Big shut down of plant to install this pipe. Long hours so better get better.

Edited by GlennWest
spelling
Link to comment
Share on other sites

  • 4 weeks later...

Job turned in 12 hr days, 7 days a week. So didn't get fixed. I actually had to to use a come a long to get slides closed. Had to move to new location Sunday. Did manage to get here just before dark. Started with plenty of time to spare. Oh well, have RV will have trouble. Lol. Will get those rams replaced here. Got slower pace here. 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...