hydraulic quick connects

[bob 59912]

Parker Quick Coupling Division (Pioneer is one product line) has several different series of couplers, including connect under pressure versions. I have all the couplings on the tractor and the ISO 5675 universal nipples on the implements. You have the option of NPTF or ORB for the connections to valves or hoses. Red fingernail polish is used to identify which hose to connect to which coupler, the red cable ties got brittle and fell off after too much sun.

4000 series couplers use manual retraction to make the connection with the nipple.
4200 series couplers use push / pull / breakaway clamps to make the connection
5000 series couplers connect under pressure, and then use a threaded mechanism, that you wrench together to open the valves in each half (less convenient)
8200 series couplers push / pull / breakaway clamp can be connected under pressure where "either or both the coupler and nipple are under pressure. Valve halves remain closed, opening only when the system pressure has been relieved on the female body and then reapplied".
8400 series couplers are found in the Pioneer catalog. very similar to 8200, with a push to connect / breakaway design, supposedly more resistant to dirt, due to the mechnism being internal.

The 8100 series nipples also have a connect under pressure version, that allows you to use the less expensive 4000 and 4200 series couplers.

To get more information you can download either the Catalog 3900 Pioneer Quick Coupling Products, April 2017, ~ 9MB, or the Parker Catalog 3800, Section B, Hydraulic Quick Couplings, ~7MB, or the entire Parker Catalog 3800 Quick Coupling Products, Sept 2016, 20MB.

I opted for the 8200 series couplers for my third function lines to my V-snowplow, they work really well. You could mount them with the Parker 5001-4 (single) or 5006-4 (double ) break away clamps shown in the Pioneer 3900 catalog. However I opted to use weld-on heavy duty Beta Clamps to clamp around the hose fittings rather than the coupler slide. ~$4 each

View attachment 540098

 

[powerscol]

Folks, this old guy is still confused. Nothing new to me. Could someone post the exact link to the easy on and off quick coupler? I looked at the catalogs posted and not sure what to get. I currently have the standard agg couplers out back (female on tractor) and getting too old fighting to get them connected. Thanks for any help.

 

[gravelman]

great information

 

[ericm979]

http://ph.parker.com/us/en/pioneer-breakaway-clamps-for-agricultural-quick-couplings

It clamps on the locking collar on the female coupler, instead of the more typical bulkhead mount. So when you pull on the hose connected to the male end it pulls the female coupler which causes the locking collar to slide on the coupler, releasing it. It works the opposite when you push the male coupler in to connect it. But you need the two way locking couplers like these: Pioneer Quick Coupling, 1/2 in. Double Acting Sleeve Set at Tractor Supply Co. if you want both the quick release and the push to install. Standard couplers are single way where you push the sleeve towards the body of the coupler.

 

[PILOON]

'nother trick to ease coupler pressure is on the male one the little center protrudes slightly.
This allows U to press it against a metal component and it will squirt a tad as it depressurizes thus making the coupling operation very easy.

 

[4570Man]

You can bleed the pressure off before disconnecting. The harder to fix problem is if you disconnect an implement before the fluid is at working temperature and the outside air warms up before its reconnected. When that happens having to loosen a line to relieve built up pressure is nearly inevitable.

 

[gravelman]

Yes, that is a must...thanks

 

[ovrszd]

You can bleed the pressure off before disconnecting. The harder to fix problem is if you disconnect an implement before the fluid is at working temperature and the outside air warms up before its reconnected. When that happens having to loosen a line to relieve built up pressure is nearly inevitable.

Just between you and I,,,, very, very few people understand this. Shutting off the tractor and wiggling lever as well as connecting the disconnected hose together has nothing to do with this.

I diligently consider the temp issue when disconnecting.

 

[4570Man]

And I didn’t learn that one in physics class.

 

[powerscol]

http://ph.parker.com/us/en/pioneer-breakaway-clamps-for-agricultural-quick-couplings

It clamps on the locking collar on the female coupler, instead of the more typical bulkhead mount. So when you pull on the hose connected to the male end it pulls the female coupler which causes the locking collar to slide on the coupler, releasing it. It works the opposite when you push the male coupler in to connect it. But you need the two way locking couplers like these: Pioneer Quick Coupling, 1/2 in. Double Acting Sleeve Set at Tractor Supply Co. if you want both the quick release and the push to install. Standard couplers are single way where you push the sleeve towards the body of the coupler.

Thanks - I think I understand now.

I do bleed the pressure from the line and know about depressing the center on the male connectors. Its just my hand strength has problems sliding the female collar back far enough to get the male far enough in to lock.