ericm979
Super Member
- Joined
- Nov 25, 2016
- Messages
- 5,439
- Location
- Santa Cruz Mountains CA, Southern OR
- Tractor
- Branson 3725H Deere 5105
Will all flat face couplers connect under residual pressure, or do only some of them do it?
flat face couplers
- Thread starter ericm979
- Start date
LD1
Epic Contributor
Only the ones listed as connect under pressure
CincyFlyer
Veteran Member
All of the others you must cuss at, pop them with something to relieve the pressure, and wear some hydraulic fluid on your clothes.
rd_macgregor
Veteran Member
- Joined
- May 14, 2008
- Messages
- 1,875
- Location
- Prince Edward Island, Canada
- Tractor
- Kioti DK45SC, Kubota B2650
On mine, I always shut off the tractor and relieve pressure by moving all the hydraulic levers when I connect or disconnect. I still sometimes have connection issues when the temperature is substantially different (esp. higher) when I'm connecting than it was when I last disconnected.
EddieWalker
Epic Contributor
I bought Stucci connectors when I got my grapple and I hated them. I probably got the wrong ones because there was no way to disconnect them by hand. And then connect them again after using the tractor. The hydraulic pressure in the lines was just too much, so I had to loosen the lines with a pair of wrenches and let the hydraulic fluid bleed out until I could open them up. Eventually, I just threw them away and now I just attach my hoses with my wrenches when I install my grapple. When not using the grapple, I have a plug that fits into the line. Takes less time this way.
Industrial Toys
Super Star Member
- Joined
- Feb 25, 2008
- Messages
- 17,393
- Location
- Ontario Canada
- Tractor
- Kubota R510 Wheel Loader + Cab and backhoe, JD 6200 Open Station, Cushman 6150, 4x4, ten foot 56 hp Kubota diesel hydraulic wing mower, Steiner 430 Diesel Max, Kawasaki Diesel Mule, JD 4x2 Electric Gator
I have lots of them. 3/8" "tool connectors" they call them. Various brands.
Supposed to connect/disconnect under pressure. Never managed that yet. Hate them. Even have to break lines of equipment that has changed temperature and created a little pressure.
Supposed to connect/disconnect under pressure. Never managed that yet. Hate them. Even have to break lines of equipment that has changed temperature and created a little pressure.
ovrszd
Epic Contributor
- Joined
- May 27, 2006
- Messages
- 33,503
- Location
- Missouri
- Tractor
- Kubota M9540, Ford 3910FWD, Ford 555A, JD2210
Didn't know they made such a thing. I'll have to investigate that.
I'm very conscious about connecting/disconnecting. Temperature change is the one element most hard to control.
LD1
Epic Contributor
http://ph.parker.com/us/17559/en/quick-couplings-hydraulic-up-to-3000-psi-iso-5675-8200-series
HTMA (ISO 16 28, 3/8”)Non-Spill, Flush Face Quick Coupling, Connect Under Pressure (hyd) up to 5 psi - FF/FC Series Nipples | Parker NA
The connect-under-pressure fittings are usually alot more money too.
The flat facec style I had first on the grapple were NOT connect under pressure. And due to the no-spill design of the flatface couplers....there was no way to relieve or even "burp" a little out when disconnecting without wrenches.
Plain old ag style, or even iso 7241-b At least can be burped a bit when disconnecting, or vented if temps change.
I see no benefit to expensive flat face couplers....even connect-under pressure style.....to save a few drops of fluid every change. Its not like I have to top off inbetween oil changes because of leakage.
They even make ag style couplers in a connect under pressure design.
HTMA (ISO 16 28, 3/8”)Non-Spill, Flush Face Quick Coupling, Connect Under Pressure (hyd) up to 5 psi - FF/FC Series Nipples | Parker NA
The connect-under-pressure fittings are usually alot more money too.
The flat facec style I had first on the grapple were NOT connect under pressure. And due to the no-spill design of the flatface couplers....there was no way to relieve or even "burp" a little out when disconnecting without wrenches.
Plain old ag style, or even iso 7241-b At least can be burped a bit when disconnecting, or vented if temps change.
I see no benefit to expensive flat face couplers....even connect-under pressure style.....to save a few drops of fluid every change. Its not like I have to top off inbetween oil changes because of leakage.
They even make ag style couplers in a connect under pressure design.
mopardude318
Platinum Member
Next front end attachment I will try these. 4HTF4-P-SET | Set of 1/2" Connect-Under-Pressure ISO 16028 Quick Disconnects
CincyFlyer
Veteran Member
I did that at first, until I discovered that you can release the pressure by pressing on the ball (or poppet) on the couplers. I took an old gear puller and put an aluminum end on it to do this. I get everything in place, wrap it with a rag, release the pressure, connect. Takes all of five seconds. One other thing, if you can do it, is to connect your implement hoses together when not in use! That seems to work for some.