SA cylinder

3106 Views 11 Replies 3 Participants Last post by Timbo, Feb 5, 2012

Timbo

Discussion Starter · Feb 2, 2012

Been looking at all the snow plow builds in the forum and was wondering if you could use SA cylinder for the lift on you plow? Im not sure how the hydrolic lines would hook up.I know the angle SA cylinders wok because you have two lines you hook up to the bucket curl With only one line for your lift hooked in your FEL port, will this function? have a 07,2305 john deere with just FEL hydrolics. Any help on this matter would be appreciated. TIMBO.

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Kennyd

· #2 · Feb 2, 2012

Yes Timbo, you can use just one SA cylinder on your lift.

It will plug into the port that gets pressurized when the joystick is pulled back. Now, when you go to lower the blade (joystick forward) that same port will be open to the tank allowing the blade to lower BUT the other port will now be pressurized and since there is nothing plugged into it the PRV (pressure relief valve) will open and the engine will sound labored for those few seconds. No harm will be done unless you held the joystick forward for long periods of time then the fluid could overheat. Just pushing the joystick fully forward into FLOAT will alleviate both those problem altogether however.

Clear as mud?

BTW, I moved this to the Hydraulics forum.

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Timbo

Discussion Starter · #3 · Feb 3, 2012

thanks so much for your answer to my question, have been reading all i can on snow plow builds on this site and others. want to build one for myself and trying to get all the bugs worked out, trying to keep the weight down on front axel as much as possible using a SA cyl other than DA cyl. lots of excellent builds on here with great ideas. again thanks timbo:thumbup1gif:

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Gizmo2

· #4 · Feb 3, 2012

Timbo,
Saw your post yesterday but did not comment on it. I just felt I did not have the right words and figured someone better than I would come along, and they did. My comment would have been, as it is now, IMO it is going to be a PITA using a SA cylinder.
The problem will not be raising the blade but the lowering. The SA cylinder will require down pressure (weight) to lower all the way all the time. Float mode will have a slow reaction time and also with no weight on the cylinder the cylinder will come to a stop the minute the blade hits the ground regardless if the cylinder is all the way down or not.

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Kennyd

· #5 · Feb 3, 2012

Just to expand to what Gizmo wrote, you need a HEAVY blade if you use a SA cylinder so it stay's down well and not ride up over things. The advantage of a DA cylinder is the ability to apply downpressure to really scrape if you need to.

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Timbo

Discussion Starter · #6 · Feb 5, 2012

Gizmo2 said:
Timbo,
Saw your post yesterday but did not comment on it. I just felt I did not have the right words and figured someone better than I would come along, and they did. My comment would have been, as it is now, IMO it is going to be a PITA using a SA cylinder.
The problem will not be raising the blade but the lowering. The SA cylinder will require down pressure (weight) to lower all the way all the time. Float mode will have a slow reaction time and also with no weight on the cylinder the cylinder will come to a stop the minute the blade hits the ground regardless if the cylinder is all the way down or not.

thanks for your comment on my post,might be rethinking the SA cylinder now. whats the cost difference between the two?

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Gizmo2

· #7 · Feb 5, 2012 (Edited)

About $112.00 DA. I bought this one in 2010 for my plow http://www.surpluscenter.com/item.asp?item=9-7270-08&catname=hydraulic
I also think you may have a hard time finding a SA cylinder that is not completely over kill in size.

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Gizmo2

· #8 · Feb 5, 2012

Yo Kenny. I bought the John Deere DA lift cylinder for my original plow I made. I am almost certain it is the same one you use on your plow. I am guessing it would work for Timbo, depending on how he made his plow, no?
<<<

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Kennyd

· #9 · Feb 5, 2012

Timbo said:
thanks for your comment on my post,might be rethinking the SA cylinder now. whats the cost difference between the two?

You can get DA cylinders cheap...plus you need the extra hose and QD. Cheap at twice the price:laugh:

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Kennyd

· #10 · Feb 5, 2012

Gizmo2 said:
Yo Kenny. I bought the John Deere DA lift cylinder for my original plow I made. I am almost certain it is the same one you use on your plow. I am guessing it would work for Timbo, depending on how he made his plow, no?
<<<

Probably...that plow you had is still for sale correct?

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Gizmo2

· #11 · Feb 5, 2012

Kennyd said:
Probably...that plow you had is still for sale correct?

It is.
I also added to my post, above,

I also think you may have a hard time finding a SA cylinder that is not completely over kill in size.

SA cylinders small enough seem to be hard to find.

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Timbo

Discussion Starter · #12 · Feb 5, 2012

thanks for all the info yes i did look up some prices on cyl bout 100. to 120. did look like over kill, still thinking on my build. Thanks again timbo.:bye:

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