Question Regarding Remote Hydraulics

[blackjack]

Today my dad and I installed 2 remote hydraulics on my DX33. The instructions were OK but
this great link was very useful. All in all, a very enjoyable job.

When we took the "stock" plate off there were 4 o-rings used. We then added the 2 remotes with 4 o-rings between each remote and got to the point where we add the "stock" cover back onto the 2nd remote, and it does not call for (nor supply) any o-rings. This did't seem correct. The cover is milled out to use o-rings and we didn't feel right bolting it onto the flat steel surface of the 2nd remote. Has anyone else questioned this? We checked with the dealer also and their parts diagrams do not indicate any o-rings between the 2nd remote and the cover.

Here is a picture of the 2nd remote that the cover gets bolted onto.

 

[techinNY]

If you do not put o-rings in the end plate, you will have a leak esspecially under pressure. If you did not already use the o-rings that were uder the end plate when you took it off re-use those, otherwise you'll have to get some from your dealer. Do not put it together without them.

 

[blackjack]

Thanks for the reply. We did indeed install o-rings and no leaks! But it surprised me that both the instructions and the parts diagram at the dealership did not indicate o-rings between these 2 pieces.

Thanks again for the reassurance!

 

[PineRidge]

Blackjack I installed 3 remotes today on my TC-40D. I found it most peculiar that new o-rings came with each of the 3 valves yet none for the end plate that had to be removed, then reinstalled. I recycled mine as well, no leaks here either.

 

[blackjack]

Mike,
Did your instructions indicate o-rings between the last remote and the end-plate? Mine didn't. I wish I had a scanner to scan in the diagram to better show you. I ended up going to my dealer and picking up 4 additional o-rings to use.

All in all, the install is very clean and professional looking. I'm quite happy with it.

 

[PineRidge]

Blackjack I just re-read the instructions for all 3 remotes. All three booklets for each remote says:
NOTE: Make sure O rings are in place on end cap "A" before installing.

I almost missed it myself. /forums/images/graemlins/wink.gif

I will say however that if they were included in the kit we might have a tendency to feel better about not having to re-use the old ones. I don't know how many thousands of pounds of pressure these o-rings are subject to, but recycling them just doesn't seem real bright to me. NH gives you extra bolts and washers so why not throw in new set of O-rings for the end plate. WOW I feel much better now, thanks! /forums/images/graemlins/tongue.gif

 

[techinNY]

I don't think the end plate really sees alot of pressure, only flow, unless there is something misadjusted in the top cover. Unless you move the remote lever, oil just flows through the remote sections and back into the top cover so I think that is why they don't supply new orings. I do agree though that it would be mental insurance if they did. I don't like to reuse orings either just for peice of mind.

 

[PineRidge]

<font color="blue">I don't think the end plate really sees alot of pressure, only flow, unless there is something misadjusted in the top cover. Unless you move the remote lever, oil just flows through the remote sections and back into the top cover so I think that is why they don't supply new orings. I do agree though that it would be mental insurance if they did. I don't like to reuse orings either just for peice of mind.
</font>

techinNY how about for the guys like me that have one of the power beyond ports on the end plate. Is there no pressure at that point with the backhoe connected and in a working configuration, or again only flow?

 

[techinNY]

I'm going to have to check on that, maybe I'm wrong but all the end plate does otherwise is circulate oil. The end plate would not see pressure unless something down stream stopped flow and it backed up to the end plate. I think I've confused myself, no wonder, it's late.

 

[techinNY]

I wasn't so confused after all. If the power beyond kit you are talking about has one fitting in the end plate and two couplers under the RH platform, we are on the same page. The port on the end plate is a return port so all the plate may see is return pressure, probably less than 300 psi.

 

[PineRidge]

That would be the one I was talking about. There was very little information in my manual regarding the power beyond so I was not sure which direction the hydraulic flow traveled. Thanks for the heads up.

 

[blackjack]

I've got a follow-up question regarding the rear remotes. I've noticed that mine have been leaking around the end-plate. I thought I might have possibly damaged an o-ring when installing the plate, so I replaced those about 2 months ago and it still leaks. I've tightened the nuts up but just can't get it to stop leaking.
It's not a serious leak...more of a strong seap. Ocassionally I'll find a drop or two on the floor. But, it sure makes a mess in that area because every bit of dusk collects there.
Is there anything else I should be looking for or try? I've checked all the other connections on that housing and they are all tight, it really appears to be leaking out of that last plate. Like I said, it's not a major problem, but I'm getting to point where I may take it to the dealer and have them give it a try.

 

[PineRidge]

Blackjack if you have already replaced the o-rings then I don't know what else could be causing the leak unless the end plate itself might be slightly warped. Even if that was the case it wouldn't be a big deal to replace it if needed. I didn't find the need to over-tighten mine to seal the entire remote assembly, and I've never lost a drop since I installed them months ago.....

 

[JerryG]

You need to get a set of o-rings with a larger cross section size. It shouldn't take much of an increase to eliminate your leak.

 

[blackjack]

I think I might try to find a little fatter o-ring. I noticed last time that I installed the factory supplied o-rings that they didn't stick up over the cut-out section. (sorry I can't describe that better)

Thanks for the advice!

 

[JerryG]

If it a tight place to get to, put a little Vaseline in the recess to hold the o-ring in place.