Page 2 of 2 FirstFirst 12
Results 11 to 15 of 15
  1. #11
    Gold Member LouieJunior's Avatar
    Join Date
    Mar 2012
    Posts
    430
    Location
    Moline, Illinois
    Tractor
    JD4105

    Default

    You are probably correct. I assumed the smaller diameter bolts would be the ones to shear. The bolt through the gearbox input shaft measures 7/16". If that one shears, what prevents the PTO shaft from spinning wildly out of control?

    Do you suppose there something else attaching the two shafts? I didn't notice another bolt -- but I have been, so far, unable to separate the drive shaft, assuming the two are rusted together. Guess I better take a closer look!

  2. #12
    Silver Member bulldog69's Avatar
    Join Date
    Apr 2010
    Posts
    153
    Location
    Rocky Face, Georgia, USA
    Tractor
    Kubota L 3000DT/ M 9000 DTC

    Default Re: Old Posthole Digger Questions??

    On most phd the pto shaft will have a small set screw that fits in a groove on the input shaft. This keep the shaft from falling off the input shaft when the shear bolt breaks.
    All kubota All the time

  3. #13
    Elite Member kebo's Avatar
    Join Date
    May 2006
    Posts
    2,711
    Location
    Lexington, SC
    Tractor
    2001 John Deere 790 4x4, bar tires

    Default Re: Old Posthole Digger Questions??

    Quote Originally Posted by bulldog69 View Post
    On most phd the pto shaft will have a small set screw that fits in a groove on the input shaft. This keep the shaft from falling off the input shaft when the shear bolt breaks.
    Yep, the set screw rides in a groove on the input shaft so if the shear bolt does shear, it keeps that end of the PTO shaft from coming off and wreaking havoc.

    If you watch the video of PHD assembly on EverythingAttachments.com, Ted will show you the set screw on the PTO shaft.
    Nothing could be finer than riding my JD790 in South Carolina!!

    2001 John Deere 790 4x4 with Model 70 FEL, 5ft International World Agritech bush hog, 5ft Wallberg BB, 5ft Frontier disc harrow, 5ft King Kutter II Rototiller, 5 1/2ft Cultipacker, 5ft Sitrex finish mower, Leinbach PHD with 9" & 12" augers, Leinbach middlebuster, Leinbach #11 Field Cultivator, custom 3pt handi-hitch, clamp on bucket forks, Pat's Easy Change.

    It's not how slow you mow... it's how well you mow slow!!

  4. #14
    Gold Member LouieJunior's Avatar
    Join Date
    Mar 2012
    Posts
    430
    Location
    Moline, Illinois
    Tractor
    JD4105

    Default

    I double checked and find no set screw securing the drive shaft. View the first 10-12 seconds of this clip and let me know what you think. I still can not remove the PTO shaft from the gearbox. I removed the "shear bolt" through the middle.

    http://db.tt/kavbZPAc

  5. #15
    Silver Member bulldog69's Avatar
    Join Date
    Apr 2010
    Posts
    153
    Location
    Rocky Face, Georgia, USA
    Tractor
    Kubota L 3000DT/ M 9000 DTC

    Default Re: Old Posthole Digger Questions??

    I think it's time for some good penetrating oil and let it soak in for a little while. If that don't work it may take some heat to break it loose.
    All kubota All the time

Page 2 of 2 FirstFirst 12

Similar Threads

  1. New to Me: Posthole Digger... PTO Shaft Questions.
    By Iplayfarmer in forum Attachments
    Replies: 50
    Last Post: 11-11-2011, 08:14 AM
  2. hydraulic posthole digger questions
    By davedj1 in forum Hydraulics
    Replies: 12
    Last Post: 08-03-2011, 06:40 PM
  3. posthole digger
    By dn4577 in forum Ag Tractors & Machinery
    Replies: 1
    Last Post: 08-27-2008, 12:13 AM
  4. 2305 with posthole digger?
    By fitzisprint955 in forum John Deere Owning/Operating
    Replies: 11
    Last Post: 12-23-2005, 11:25 AM
  5. PT Posthole Digger
    By Reds in forum Power Trac
    Replies: 1
    Last Post: 05-06-2002, 09:35 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2016 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.