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Rear hydraulics
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jrbynf View Drop Down
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Joined: 01 Jun 2021
Location: Kansas City
Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Topic: Rear hydraulics
    Posted: 19 Sep 2022 at 1:53pm
When using a post hole auger would it be possible to change the hoses on one of the rear cylinders to provide down pressure?
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Allis dave View Drop Down
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Joined: 10 May 2012
Location: Northern IN
Points: 3086 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 2:02pm
If you're talking about and of the older models with 1 way hydraulics, the answer is no. A WD45 cylinder only extends. It only retracts by gravity. Same with the newer ones, but I'm not as familiar. Some cockshutts or Coop's are the only tractors I"ve heard of that can actually put down pressure on a 3-point.
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 8:21pm
Don't know what tractor you have, but sounds like your auger bit needs sharpened.                      MACK
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jrbynf View Drop Down
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Joined: 01 Jun 2021
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 8:33pm
Lots of rocky soil. It’s a 180
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DSeries4 View Drop Down
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7574 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 8:34pm
Mack is right.  A post hole auger should not need down pressure to operate.  The spiral on the auger should pull it into the ground.
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rw View Drop Down
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Joined: 28 Oct 2009
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Points: 385 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rw Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 8:52pm
This is not an answer to the question you asked but an alternative. Hard dry soil with rocks are tough for most three point hitch outfits.  Hard dry rocky soil will dull your bit pretty quick.
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Les Kerf View Drop Down
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Joined: 08 May 2020
Location: Idaho
Points: 1491 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Les Kerf Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 8:56pm
Originally posted by jrbynf jrbynf wrote:

Lots of rocky soil...


Yup. Augers work great in soft soil. Just talk to the folks who drill the holes around here for utility poles, they use down pressure and lots of it too.
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jrbynf View Drop Down
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Joined: 01 Jun 2021
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Posted: 19 Sep 2022 at 9:04pm
I know it’s not ideal but the blades dull pretty quick here. They make hydraulic assisted augers but I was just trying to use what I had
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Allis dave View Drop Down
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Joined: 10 May 2012
Location: Northern IN
Points: 3086 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 7:02am
When we're using a post hole auger in hard ground, it's a 3 person job. One on the tractor and one on each side of the auger pushing down.
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jrbynf View Drop Down
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Joined: 01 Jun 2021
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 8:29am
So if the hoses are reversed will the hydraulic cylinder work in reverse? Or are the internals of the rams such that they don’t allow for opposite flow
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Joe(TX) View Drop Down
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Joined: 11 Sep 2009
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Points: 1682 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 12:10pm
Danuser makes a down pressure device for their augers. Could be done on most augers.
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
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Allis dave View Drop Down
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Joined: 10 May 2012
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Points: 3086 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 12:15pm
There is one 1 place to connect the hose so you can't reverse the flow.
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jrbynf View Drop Down
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Joined: 01 Jun 2021
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 12:21pm
Yes there is only 1 fitting. Would require some interesting plumbing to make it work.
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Allis dave View Drop Down
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Joined: 10 May 2012
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Points: 3086 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Allis dave Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 2:11pm
Internally, 1 way and 2-way cylinders are different.
A 2 way cylinder has a ram smaller than the cylinder barrel and larger head piece bolted  to end of the ram with a seal around it. A hydraulic hose is plumed to each end of the cylinder.
To extend -  oil is pumped behind the ram to push it out. Oil fills the barrel
To retract - oil is pumped into the other end of the barrel It pushes back on the ram head, forces the oil out form the behind the ram, and the cylinder is retracted.

1-way cylinder are missing the second fitting and design to pump in oil to retract the cylinder. there's no good or safe way to change a 1-way cylinder into a 2 way
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jrbynf View Drop Down
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Joined: 01 Jun 2021
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Points: 58 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jrbynf Quote  Post ReplyReply Direct Link To This Post Posted: 20 Sep 2022 at 4:33pm
Thanks for all the replies. Makes sense.
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