Has anyone adjusted the Loader Relief valves, or the system PSI ???

[rwork]

On your 47 it is on the loader valve under the right side floor pan. LS says the pressure should be anywhere from 2300-2400 psi factory. I have bumped it up a little on a couple of tractors cause the pressure was too low. Mostly what I do is put a gauge on the remote valve and check the pressure there. There is a jam nut with an allen head screw. Just back off the jam nut and turn in the allen head. Just go a little at a time as a 1/4 turn makes a big diff. I put them at about 2600 psi. 2600 psi seems to be an industry std. You would be amazed at the difference that 100 psi makes on your lift capacity and the operation of the FEL and other attachments.

What should the pressure be on a R3039H?

 

[boomer632]

Look at post #8 QD's, hoses, adapters and gage.

I read that post but I was referring to something more detailed to include part numbers etc..

 

[sdef]

I read that post but I was referring to something more detailed to include part numbers etc..

Okay, this can get you started but you will need to modify for your circumstances- coupling type, whether or not you want to add a hose, gauge mounting type- bottom mount or back mount, etc. It will be for a system that can be used as a pass through or dead head. Parts are from Discount hydraulics, except where noted and all fittings should be steel:

NOTE: This information is provided for information only. My typing is poor and I will not be responsible for anything someone may order. The orderer needs to verify the parts are appropriate for their intended application.

Gauge assembly:
- Bottom mount gauge, 5000 PSI- #AFC-5M-25, $17.31
- Straight swivel adapter, 1/4" male/female- #359313, $4.99 (Northern Tool and Equipment) Use for gauge positioning.
- Pipe coupling, 1/4" female/female- #5000-04-04, $1.50
- Hose, 5800 PSI 36" long, 1/4" male NPT fittings on each end- Abbott Rubber hose #1960-0250-36, $17.10 (Amazon.com)

Coupling assembly

- Pipe bushing, 3/8" male x 1/4" female- #5406-06-04, $.83
- Branch Tee, 3/8", female/male/ male- #5601-06-06-06, $7.90
- Extension connector, 1/2" male x 3/8" female (2 each)- #5405-08-06, $5.52 each

Now one needs to add the coupler set. The following is for the pretty much standard ISO 5675 (agricultral) that most tractors seem to have at the rear remotes:

- 1/2" ISO 5675 coupler set (with 1/2" female NPT)- #4AGF4-AGF4, $14.60

I have not had much luck using pipe thread sealing paste that others more experienced in hydraulics may recommend and only use the yellow "gas" tape, available at any home center, hardware store, Amazon, etc. My joints using tape are almost 100% and with paste are 50% at best.

In my situation I wanted a 3/8" Tee section and then used the bushings/extension to adapt the couplings, as I have 3/8" and 1/2" couplings in 4 different types and this setup would provide me the flexibility I require. One might be able to save some money by using a 1/2" tee and no adapters for the couplings.

These parts will give you this:

 

[mangus580]

I have not had much luck using pipe thread sealing paste that others more experienced in hydraulics may recommend and only use the yellow "gas" tape, available at any home center, hardware store, Amazon, etc. My joints using tape are almost 100% and with paste are 50% at best.

My SOP with this has been to use the paste first, then wrap the fitting with tape, then paste again... 100% sealing that way!! Especially with larger diameter (1" plus)

 

[sdef]

Wow! I have a 3" diameter, pin on button, a coworker gave me a log time ago and it says " A little overkill never hurt anyone". I imagine I received this since I am a tad OCD and a tad **** retentive (others who think they know me would disagree with "a tad" and replace it with a more graphic comment), bearing in mind my hydraulic tester cost me well over $200 to build.

I never would have considered going to the extent you mentioned, but may try it in the future. While writing up my previous post, I noticed the joint where the gauge is mounted had a tiny leak, as I got a tiny amount of hydraulic fluid on my hand- grrrr. Now this "leak" has shown up over time, as all of the fitting were dry in my last use a month ago. I do not like leaks of any kind and the ag. fittings I have on it now leak a tiny bit at the male coupling/ball just sitting in my toolbox. I wish all of my fittings were ISO 16028, skid steer, which are totally dry and for the most part- dirt proof.

 

[mangus580]

I worked in a biodiesel plant for a couple years - and the guys there taught me to do it. Especially when dealing with 2-3" pipe. It works great.

 

[sdef]

I worked in a biodiesel plant for a couple years - and the guys there taught me to do it. Especially when dealing with 2-3" pipe. It works great.

I am sold. I was going to PM you with the following, but think others may learn from this also.

What are you experiences with the pastes- specifically? I tried Permatex brand on this project and it was terrible. Only one joint sealed and I used plenty of sealant, evenly applied.

 

[mangus580]

I think one place many people make the mistake of using paste, and then pressurizing it too fast. The past needs to dry fully before attempting to use the system, otherwise it will leak.

 

[TractShackTimmons]

The relief valve on the loader valve also controls the remote valves. Other manufactures will have diff pressure settings. some more than 2600 and some less. Just when a tractor comes into my shop with a pressure issue I take it to 2600 psi at PTO speed. Ive had a couple R4041's come in where the PSI was only at about 2000 psi. Which is way below factory specs.

 

[Guesseral]

The relief valve on the loader valve also controls the remote valves. Other manufactures will have diff pressure settings. some more than 2600 and some less. Just when a tractor comes into my shop with a pressure issue I take it to 2600 psi at PTO speed. Ive had a couple R4041's come in where the PSI was only at about 2000 psi. Which is way below factory specs.

What if the tractor doesn't have a loader I assumed that there was a relief valve in the 3pth mechanism!