tommu56
Elite Member
Unfortunately there is no standard on the QD's you have to stick to one brand to be assured they will work.
I'm glad you got it figured out.
tom
I'm glad you got it figured out.
tom
Attaching truck sno plow to tractor FEL, hydralic connections
- Thread starter dlauffenburger
- Start date
- Views: 12202
foggy1111
Elite Member
I used 1/4" because that is the way JD set's up the hardlines kit alongside the loader. The couplers they furnish are 1/4" Pioneer Brand QD's.....and so I got two more sets to attach my grapple and FEL Snow Plow. Never an issue. Also.....yes I did read where the 1/4" lines will slow the grapple cylinder to help with operation.....I like the speed I get.
But I have a hard time understanding what those "springs" in the Quick Couplers have to do with anything. Those springs are made to prevent leaking when UN-coupled....not during operation.....no?
Notforhire
Veteran Member
wdchyd
Elite Member
Looks good.....but just a word of caution.....
If ya hit something while plowing, you're likely to blow a cyl or hose (or worse damage to tractor frame) if a cushion valve is not installed inline between tractor valve and cyls......the plow manufacturers incorporate these pressure controls in the main plow valve
https://www.surpluscenter.com/item.asp?item=9-4019-50-H&catname=hydraulic
The idea is for the cyl to by-pass instead of doing harm to your equipment when hitting hidden obstacles......
If ya hit something while plowing, you're likely to blow a cyl or hose (or worse damage to tractor frame) if a cushion valve is not installed inline between tractor valve and cyls......the plow manufacturers incorporate these pressure controls in the main plow valve
https://www.surpluscenter.com/item.asp?item=9-4019-50-H&catname=hydraulic
The idea is for the cyl to by-pass instead of doing harm to your equipment when hitting hidden obstacles......
foggy1111
Elite Member
^ He's right. I put what is correctly called a "cross-over relief valve" into my installation to prevent just such an issue. If you have lots of curbs or tree roots (my situation) then this valve makes allot of sense.
BIG DOOLEY
Platinum Member
oldnslo
Super Member
What happens with QD's that are mismatched like using one half ball style and the other half poppet style is the ball or poppet is not held off the seat far enough to prevent the poppet or ball from seating due to flow forces. (I.e. pressure drop) 95% of the time if you operate the function slowly it will work. The springs are just there to hold the ball or poppet closed when disconnected to prevent oil leaking out on the ground.
This occasionally a problem even with both halves being poppet or ball style but two different manufacturers. Some universal interchanges are not 100% universal.
