Homemade post hole digger

   / Homemade post hole digger #1  

redneckexplorer

New member
Joined
Jan 11, 2008
Messages
21
Location
Oklahoma
Tractor
2002 NH TC40DA 1974 IH 474
Heres a post hole auger I built, The tube is 2 7/8 pipe. I bought the gear box on e bay for 100 with shipping and also the auger for about a 100 with shipping. I had the driveline already I got about another 50 in odds and ends as well as gas and rods. 250 total. It works pretty good, although the tip on the auger is kinda cheap, I've alreay bought a heavier tip from TSC. The auger is a leinbach. If you count my labor I probably have way more in it but it was fun to build. I measured a buddy's speeco and made this pretty close demension wise. I had a heavy top link with a damaged end I added to the top for adjustment. Probably won't need to adjust it but the broke top link found a home anyway.
 

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   / Homemade post hole digger #2  
Nice work ! As long as I've been hanging out here on TBN...... this is the first home built PHD I can recall anyone making. :)
 
   / Homemade post hole digger #3  
Redneck,nice job........can i ask what ratio your gearbox is?Just in case i ever decide to build one:D.
Digger2
 
   / Homemade post hole digger
  • Thread Starter
#4  
You know I never did check the ratio. The gearbox is factory made for PHD's.
The seller said he made a special purchase of a lot of these that had a seal problem, he will warranty it for a year as long as you keep oil in it and address the seal problem. The problem with seal was the OD bore was slightly large I removed the seal and put it back with 3m weatherstrip adhesive. Filled it up with oil over a month ago and not even a drip yet.
 
   / Homemade post hole digger
  • Thread Starter
#5  
In fact I just checked e bay, the seller still has them for sale. 65 plus shipping. It shows he has only sold one. I guess I was the only one willing to take a chance. Everything on it seems good and heavy just the bottom seal was a little loose. I know I'm not supposed to put e bay links here but you can find by searching "post gear box"
 
   / Homemade post hole digger #6  
Nice job. I might start a war here, but i really like the color. :D
 
   / Homemade post hole digger
  • Thread Starter
#7  
Its behind a TC40 NH , so I thought Ford blue was fitting. But I'm definatley on the Blue side anyway. From Trucks to tractors. Attatched you will see my craftsman that got a Blue makeover.
 

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   / Homemade post hole digger #9  
Nice build. I have a home made one that was built using a 9" Ford rear end. Its got a 3.73 gear ratio. Just took out one of the axles and welded a plate over it for the top end of the gear box. Used the other axle on a shortened tube to attach the auger.

Chris
 
   / Homemade post hole digger #10  
Nice build. I have a home made one that was built using a 9" Ford rear end. Its got a 3.73 gear ratio. Just took out one of the axles and welded a plate over it for the top end of the gear box. Used the other axle on a shortened tube to attach the auger.

Chris

Same here. Mine works great. Got it with a 9" auger for $100.00.

Terry
 
   / Homemade post hole digger #11  
Nice work. Be careful around the unguarded shafts.

I have 9 & 12" Lienbach augers and agree the points and cutting edges are cheesy. They do seem to dig well in my soil though.
 
   / Homemade post hole digger #12  
Looks Great, built one in the early nineties, used a Ford Mainline diff and a
Sunshine No6 header PTO, purchased the auger.
Fitting good cutting tips is the main thing.
 
   / Homemade post hole digger #13  
Redneck, nice job on the digger. I'll keep this in mind and might get one of those gear boxes. When I saw the mention on 2 7/8" uptbg I knew you had to be from my neck of the woods!

Hey, one of you guys that made one from a Ford rearend, post a few pics of it I'd like to see it.

Thanks.
 
   / Homemade post hole digger #14  
You know I never did check the ratio. The gearbox is factory made for PHD's.
The seller said he made a special purchase of a lot of these that had a seal problem, he will warranty it for a year as long as you keep oil in it and address the seal problem. The problem with seal was the OD bore was slightly large I removed the seal and put it back with 3m weatherstrip adhesive. Filled it up with oil over a month ago and not even a drip yet.

To check the ratio, do this.

Place a mark on the auger, and a mark on the drive shaft. Turn the drive shaft by hand or pipe wrench and note the number of drive shaft rotation it takes for the auger to turn once.

Augers are usually in the 3.0/1 to 4.0/1 ration range 135 to 180 rpm . Of course engine speed will change that.
 
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   / Homemade post hole digger #15  
A beautiful PHD fer sure....As a side note, where I try to dig post holes the rocks are a major problem... last weekend I was at a rental place in in talking to them, they showed me what they called "pockets"... They weld these pockets onto their auger and insert hardened points, which they say will last forever... For those of you with lots of rocks, it may pay to check into this... as soon as I find that roundtoit, thats my plan.. will report abck when that happens...
 
   / Homemade post hole digger #16  
Excellent job. But really needs a freewheeling guard on the PTO shaft and a guard around the universal joint on the gearbox. Thanks for the pictures.
 
   / Homemade post hole digger #17  
like a rubber bootty to keep the dirt out of the joint?possibly and old CV joint booty would do it.
 
   / Homemade post hole digger #18  
1st off you sure done a good job. I wasn't going to bring it up, but looking at you pictures real close, it looks like the u jount bore is bigger then the gear box shaft. You sure wouldn't want that shaft to come off there. Just bringing it, so maybe no one well get hit with the shaft. A young man just got killed a few weeks ago around here from a post hole digger.
 
   / Homemade post hole digger #19  
Wanted to bring this one back for more discussion.

I've been considering lately building one for my skid steer. However, I was thinking of using a hydraulic motor.

Anyone ever build one with a hydraulic motor vs shaft driven?

-- Joe
 
   / Homemade post hole digger #20  
Nice job on the digger build.

The draw backs of a 3 point hitch PTO digger are IMO are, one can't reverse rotation and can't put down pressure on the bit with the 3 point.

Only some belarus tractors seem to have that abillity in the latter.
 

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