Shaver HD-8 Post Driver on WD45

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   I just picked up a front mount hd-8 post driver i'm going to mount on my WD45 to put in some horse fencing around my place and was looking for some advice from anyone who has that setup.  Specifically looking at the way the WD45 hydraulic system is setup I think I need to have the post driver valve configured as a closed center valve with a pressure relief to keep the pressure down for the driver?  The normal pressure on those drivers seems to be 1500psi so i don't think I want to feed it Allis system pressure?  Probably need a shutoff valve in the loop to completely shutoff the feed to the driver when i'm not using it to keep the fluid from getting hot running through the relief all the time?  The pump output should be adequate because they only call for 3 gpm.  I'm assuming I could just connect the pressure line back at the rear aux port and feed the return back into the hydraulic drain port on the bottom of the tractor?
Also any experiences or tips would be greatly appreciated.  It's a manual tilt unit but I have pretty level ground so I don't think that will be that annoying.

Thanks.

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lockheedt33 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 05 Sep 2011 Location: Waterman, IL Points: 125	Post Options Post Reply Quote lockheedt33 Report Post Thanks(0) Quote Reply Topic: Shaver HD-8 Post Driver on WD45 Posted: 08 Apr 2019 at 8:47am
	I just picked up a front mount hd-8 post driver i'm going to mount on my WD45 to put in some horse fencing around my place and was looking for some advice from anyone who has that setup. Specifically looking at the way the WD45 hydraulic system is setup I think I need to have the post driver valve configured as a closed center valve with a pressure relief to keep the pressure down for the driver? The normal pressure on those drivers seems to be 1500psi so i don't think I want to feed it Allis system pressure? Probably need a shutoff valve in the loop to completely shutoff the feed to the driver when i'm not using it to keep the fluid from getting hot running through the relief all the time? The pump output should be adequate because they only call for 3 gpm. I'm assuming I could just connect the pressure line back at the rear aux port and feed the return back into the hydraulic drain port on the bottom of the tractor? Also any experiences or tips would be greatly appreciated. It's a manual tilt unit but I have pretty level ground so I don't think that will be that annoying. Thanks.
	1941 AC B 1948 AC C 1951 AC CA 1954 AC WD45

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Joe(TX) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Weatherford. TX Points: 1682	Post Options Post Reply Quote Joe(TX) Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 12:34pm
	No to all except the last 2. You need an open center valve. Free flow when the valve is centered will not heat the oil. Closed center is only for variable displacement pumps with pressure compensation. The driver will only use the pressure needed to operate. Pressure will only go up if you bottom the cylinder. To make the driver operate correctly, You need as large a return as possible. Any restriction here will slow the rate of drop. We had one of the drivers on a WD45. It had a 1 in. return and a tank on the return mounted on the frame.
	1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A

exSW Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 21 Jul 2017 Location: Pennsylvania Points: 914	Post Options Post Reply Quote exSW Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 5:38pm
	I run the same driver on my Farmall 560 and now on my 7010. My return line is big but it's still plumbed into the return port like any other piece of equipment. No problems yet. You do have to open the valve full on the downstroke. It seems to be more effective on the larger tractor. More inertia I think. I had it on the front of the 560. Handy but it would bounce the front a mite. I'd load pics but apparently this site doesn't like them today. Edited by exSW - 08 Apr 2019 at 5:47pm

exSW Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 21 Jul 2017 Location: Pennsylvania Points: 914	Post Options Post Reply Quote exSW Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 5:48pm
	Aaarrrgh!

DiyDave Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: Gambrills, MD Points: 52410	Post Options Post Reply Quote DiyDave Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 5:57pm
	You might be better off driving a separate pump offa the crankshaft. Price out the components you need, and compare, before constructing...

AC720Man Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 5041	Post Options Post Reply Quote AC720Man Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 9:44pm
	I’m glad to see this post. I have a WD that am thinking of putting a driver on it. It had one on it at some point. It also used to have a loader on it. When I bought it, lift arms were laying under it on the ground but loader was no where to be found. It also had the side saddle oil tank mounted on the foot clutch side of the frame. I have no use for it as a loader tractor, narrow front, and no power steering. So my thinking was the tank was for the loader? So I removed it. But, I still have it. And it had a 1” hose feeding the tank. A shut off valve teed off the hydraulic line feeding the rear hydraulic outlet if I remember correctly. Assuming that may have feed the driver? Joe does that sound similar to your hookup?
	1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD

AC720Man Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 5041	Post Options Post Reply Quote AC720Man Report Post Thanks(0) Quote Reply Posted: 08 Apr 2019 at 9:53pm
	Oh, the tank also had a hose that went under the tractor and teed into the bottom of the hydraulic sump, drain plug screwed into the bottom of the tee. Assuming now the tank held the extra oil the driver required?
	1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD

AC720Man Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 5041	Post Options Post Reply Quote AC720Man Report Post Thanks(0) Quote Reply Posted: 14 Apr 2019 at 8:00am
	Purchased a 8” Shaffer driver, is my post above correct to install on my WD?
	1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD