Robertesq1
Member
I have a hadraulic top link on the back of my JD 4120. It moves very quickly which makes fine adjustments difficult. Is there a way to slow it down a little?
Thanks, Rob
Thanks, Rob
speed adjustment on JD hydraulic top-link?
- Thread starter Robertesq1
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ovrszd
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- Kubota M9540, Ford 3910FWD, Ford 555A, JD2210
Yes there is. Restrictor fittings. Sometimes called restrictor washers. Do a Google search and see what you come up with.
Be careful about using too small restrictor. If you buy some and they cause your hydraulics to squeal loudly, the hole is too small and your tractor hydraulics is by-passing. That's not good. This can be fixed by drilling larger holes in the restrictor. Enlarge it the smallest amount you can repeatedly until you get to the speed you like the most. As you drill it out, the squeal will go away.
You can also buy adjustable restrictors, although the cost is more significant. The plus side is you can adjust the flow rate. Surprisingly, my 1984 Ford came from the factory with speed adjustable rear remotes!!!! With a simple thumb knob you can change the speed of whatever attachment you are using.
Be careful about using too small restrictor. If you buy some and they cause your hydraulics to squeal loudly, the hole is too small and your tractor hydraulics is by-passing. That's not good. This can be fixed by drilling larger holes in the restrictor. Enlarge it the smallest amount you can repeatedly until you get to the speed you like the most. As you drill it out, the squeal will go away.
You can also buy adjustable restrictors, although the cost is more significant. The plus side is you can adjust the flow rate. Surprisingly, my 1984 Ford came from the factory with speed adjustable rear remotes!!!! With a simple thumb knob you can change the speed of whatever attachment you are using.
MinnesotaEric
Super Member
Restrict down to 1/4" on a 3/8" line should work for you, I think.
PILOON
Super Star Member
Not being readily available I simply brazed shut a male/female fitting and then drilled out a 1/8" hole to restrict flow.
Worked just fine and I could always enlarge the hole for more flow if needed.
Worked just fine and I could always enlarge the hole for more flow if needed.
kennyd
Advertiser
We sell some simple and cheap inline restrictors in both 1/4" and 1/2" NPT thread.
prichard
Veteran Member
OP
Robertesq1
Member
Do I need to post pics for correct parts
ovrszd
Epic Contributor
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Nope, all you need to offer is the size of your couplers and hoses. An add-on restrictor goes between your hydraulic coupler and the hose. So a provider needs to know the sizes.
OP
Robertesq1
Member
Ok! I have a jd 4120. Not sure of the size. I guess I will post a pic. Also does it matter where the restrictor is placed. I don't have much clearance and would like to mount them on the hydraulic.