Slowing down hydraulic snowblower controls

[404nouser]

I have removed a fitting and taped it for a 1/8 pipe plug then drilled a small hole in an Allen head plug. Lock tite the plug in.
Cheap and effective.

Other items may be needed depending on the internal size of the fitting you choose.

 

[leonz]

I have a 72 inch Pto snowblower on my ck3510 tractor. The chute moves much to fast up and down as well as sideways. I know I can install a needle valve to adjust the speed but I really don’t want to install four one way valves and bidirectional valves are not at my disposal. If I installed a piece of round stock with a hole drilled through the Centre in the lines where they attach to a threaded coupling, will this work? It shouldn’t be any different than the valve.

Please do not do this you are risking a blown hose and a possible skin puncture which could be fatal.

Please call your machinery dealer and ask them how you go about reducing the relief valve pressure on
those 2 circuits to allow your chute and spout cylinders to react more slowly by reducing the system pressure
which will automatically cause a bypass through each relief valve in the two circuits.

If they do not want to help you please go to the Parker Hanafin home page and look up the dealer locator
and call the closest parker hydraulics dealer to you as they will provide you what you need quickly which
color flow dual directional needle valve for both circuits that mounts on a cylinder port.

These needle valves have female female ports and you will need to buy fittings to connect them to one port of each
cylinder.

The fittings you will need for each cylinder are female JIC(Joint Industrial Council) to male NPT to connect to the fitting
on the cylinder barrel and the other end of the color flow valve is an NPT male to JIC female fitting.

So you need two of the color flow valves and four fittings to solve this if your dealer will not help you.

 

[ruffdog]

Please do not do this you are risking a blown hose and a possible skin puncture which could be fatal.

Please call your machinery dealer and ask them how you go about reducing the relief valve pressure on
those 2 circuits to allow your chute and spout cylinders to react more slowly by reducing the system pressure
which will automatically cause a bypass through each relief valve in the two circuits.

If they do not want to help you please go to the Parker Hanafin home page and look up the dealer locator
and call the closest parker hydraulics dealer to you as they will provide you what you need quickly which
color flow dual directional needle valve for both circuits that mounts on a cylinder port.

These needle valves have female female ports and you will need to buy fittings to connect them to one port of each
cylinder.

The fittings you will need for each cylinder are female JIC(Joint Industrial Council) to male NPT to connect to the fitting
on the cylinder barrel and the other end of the color flow valve is an NPT male to JIC female fitting.

So you need two of the color flow valves and four fittings to solve this if your dealer will not help you.

It is not pressure that causes the speed, it is flow rate. The restrictors reduce flow rate.

You only need one restrictor per cylinder as fluid is not compressible.

 

[leonz]

Yes, I know that, the color coded needle valves are what he needs.

The Parker color coded needle valves solve this for him by adjusting
the flow rate to its lowest flow rate if he chooses to use them.

 

[authority]

For the Canadians requiring, Greenline is a great option for any fluid fittings and any hose.

Restricted Orifice Adapters | Green Line Hose & Fittings

We stock adapters with un-drilled passages so that they can be drilled as required by the application. Orifice adapters are used to restrict flow in a hydraulic system, usually to limit the speed of a hydraulically controlled movement.

www.greenlinehose.com

 

[Fxfymn413]

My redneck solution to slow the hydraulic cylinder that raises the wedge on my splitter was to weld a washer that fit into a connector shut and than drilled with a small hole. If it was too slow I went up one drill size until I was happy with it.

 

[leonz]

The other option is to use 2 cushion valves and price the cost of
cushion valves versus the color coded needle valves that restrict
the flow in both directions if the dealer will not reduce the relief
valve pressure to slow the cylinders down.

 

[steve tym]

My first solution was to tap the inside of a fitting and install a pipe plug with a small hole, really small, maybe a 64th of an inch? Then I found the flow restirctors someone listed above. Works great.

 

[CalG]

When I installed the three function control valve on my Hurlimann to replace the feed from the rear dual remotes, I found that the loader action was "too fast", but only in the "drop the arms" direction/

So.....
I fitted an "imperfect" ball bearing at the location where the MPT hose end met the JIC valve body adaptor.

The ball bearing is a sloppy fit in one direction of flow, and a restrictive fit in the other. A directional flow control if you will.

twerks a treat!

 

[varmint]

If Canada would simply allow itself to be absorbed by America, none of these supply problems would exist. What could go wrong?

 

[DK_Farms]

I bought a couple flow restrictors from Bolt On Hooks to use on top link cylinders. Works great to slow things down and give you much finer control. Quick and easy fix. May need an adapter and copper washers to mate up to the cylinder depending on your configuration. I've seen some homemade ones fail spectacularly. Hydraulic pressure ain't something you want to take a chance with.

 

[DonChevelle]

I have a 72 inch Pto snowblower on my ck3510 tractor. The chute moves much to fast up and down as well as sideways. I know I can install a needle valve to adjust the speed but I really don’t want to install four one way valves and bidirectional valves are not at my disposal. If I installed a piece of round stock with a hole drilled through the Centre in the lines where they attach to a threaded coupling, will this work? It shouldn’t be any different than the valve.

I had a similar problem with my Kubota LX4020 when using the snowblower or plow. With these valves, you can adjust the flow, and therefore the speed, perfectly.

 

[Bentrim]

When I worked at a dealer if a cylinder worked too fast we would remove one of the fittings and braze the end of the fitting shut then drill a small hole in the brass. If it was too slow remove and drill slightly bigger or if still too fast rebraze and drill asmaller hole. Always worked just fine

 

[leonz]

I had a similar problem with my Kubota LX4020 when using the snowblower or plow. With these valves, you can adjust the flow, and therefore the speed, perfectly.

That is why I suggest he contact the local Parker Hanafin dealer to order the two
flow control valves and the needed steel hydraulic fittings for both cylinders or
have the dealer order them and install them for him.

A couple of hours work and he will have it done and never have to deal with it again.