[TowerTalk] Driving Screw Anchors

Grant Saviers grants2 at pacbell.net
Wed Jan 8 15:36:16 EST 2014

Several times my PTO auger became an unplanned screw anchor, it could 
instantly screw all the way down into wet/damp CA adobe.  The grade 5 
3/8" bolt shear pin also sheared.  With no reverse and no way it was 
going to pull out, it was a big digging job.  Take off the auger, go get 
and attach the backhoe (55hp JD tractor).  We learned to peck drill 
carefully if into damp adobe. Hydraulic drive augers have reverse and 
lots of advantages and can probably be feathered to a slow speed with 
the valve. I don't think a telescoping shaft would be needed as the 3pt 
hitch can be in float mode.

btw the JD5410 tractor, front loader, backhoe, auger with downforce + 2 
screws, box scraper/ripper with hydraulics, HD single point 
ripper/cable/pipe puller, hitch mounted boom and wand sprayer is for 
sale near San Jose, CA, can deliver locally, contact me off list Also a 
ride on Ditch Witch and Komatsu D21P dozer if any interest.

Grant KZ1W

On 1/8/2014 9:28 AM, Wilson wrote:
> Has anyone used a post hole auger on a tractor to drive screw anchors??
> I think they are a bit too fast, but might handle the job if properly 
> managed.
> I'd rig a telescoping shaft, like on the pto driveshaft, to go between 
> the auger drive coupling and the anchor eye.
> Wilson

More information about the TowerTalk mailing list