HOW TO: Adjust the Pressure Relief Valve (PRV) on the MF GC 1705/10/15/20

[kennyd]

In the video all the hoses to the loader are disconnected. I was wondering if only a single hose was disconnected if fluid could go through that circuit and spray out the single disconnected hose. Could that happen??

Not unless a QD (quick disconnect) totally failed, unlikely.

 

[piercedtiger]

On a compressor hose the female coupler seals, but not the male part of the quick disconnect.

Yes, you are correct. My mistake. However you can see the open hole in the male end of the air line while there is no open hole on the end of the hydraulic line. A compressor can easily refill the air tank and line, but we would all have to carry jugs of hydraulic oil to replace what drains out of the lines whenever they were disconnected if they weren't sealed. And dumping oil on the ground is generally not legal or desirable.

 

[1bayouboy]

It seems my year old GC1710 doesn't use the 1/4" connection. I ordered the 1/4" AG and it is smaller than what's is on the FEL connections.
Here a picture of the 1/4" connection on the gauge next to the #2 connection to the FEL. And now I see how they seal.....thanks to all that replied.

 

[kennyd]

It seems my year old GC1710 doesn't use the 1/4" connection. I ordered the 1/4" AG and it is smaller than what's is on the FEL connections.
Here a picture of the 1/4" connection on the gauge next to the #2 connection to the FEL. And now I see how they seal.....thanks to all that replied.

I just sent you an email, I think you have 3/8" ISO 7241 "A" couplers.

 

[GeneV]

I just sent you an email, I think you have 3/8" ISO 7241 "A" couplers.

Kenny, I want to order your valve, what coupler size do I need? I have a 2018 GC1710. To the original poster, great write-up, much appreciated! My loader seems to struggle so I'm holding the prv suspect. I'm also getting hydro squeal and the drive seems a bit anemic when pushing down on forward, so wondering if that's related.

 

[WranglerX]

Hydraulics for FEL and 3PH (and BH) are separate circuit from HST ... FEL/3PH pump is gear driven off HST input shaft but not any relationship to HST drive system...

Dale

 

[kennyd]

Kenny, I want to order your valve, what coupler size do I need? I have a 2018 GC1710. To the original poster, great write-up, much appreciated! My loader seems to struggle so I'm holding the prv suspect. I'm also getting hydro squeal and the drive seems a bit anemic when pushing down on forward, so wondering if that's related.

We now have three charts on the website that you can download, print out, and compare. The GC1705 uses 1/4" ISO 5674 "AG" style, not 100% sure if the 1710 uses the same-it's to hard to keep track of all the modle numbers form every manufacturer.

 

[GeneV]

We now have three charts on the website that you can download, print out, and compare. The GC1705 uses 1/4" ISO 5674 "AG" style, not 100% sure if the 1710 uses the same-it's to hard to keep track of all the modle numbers form every manufacturer.

I would think it be the same thing on the 1710, but just in case what do I measure? I got 3/4" on nipple diameter.

 

[GeneV]

Thx for the info.

 

[GeneV]

I just sent you an email, I think you have 3/8" ISO 7241 "A" couplers.

Those charts on your website did help, and yes I do think that's the one I need as well. Your website says to email you about that size coupler, so I guess I'll do that before ordering.