Author	[Modern View]
TheOldHokie 01-22-2013 05:47:19 108.22.203.170 Report to Moderator	ZANE said: (quoted from post at 19:12:10 01/21/13) I'll bet that if the TheOldHokie put his mind to it he could make us a set of gears to about half the speed of the 8N four speed reverse?????? Zane Thanks for the vote of confidence Zane :oops: I have put my mind to it and have produced gearing for 5 prototype gearboxes. In keeping with the Zane Sherman tradition of "fun" product naming I dubbed it the HokiePokie :roll: The gears are made and all that remains is to find time to finish the gear carrier ant the modiications to the Ford PTO shifter and linkage mechanism. Then it's install and test the thing. The reduction ratio is 3.5:1 in all gears forward and reverse so the speed reduction is significant - e.g. roto-tilling speeds. TOH Click on the thumbs for a bigger image. [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1273.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1292.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1277.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_0881_1.jpg][/URL] This post was edited by TheOldHokie at 05:50:24 01/22/13. [Reply]   [No Email]
ZANE 01-22-2013 17:45:05 98.83.102.236 Report to Moderator	Re: What were they thinking? in reply to TheOldHokie, 01-22-2013 05:47:19   I knew you could do it!!!!! Hope you get it into production before I die! I've always wanted to use a tiller behind my 8Ns. Zane [Reply]  [No Email]
Cliff(VA) 01-22-2013 07:18:24 70.89.233.37 Report to Moderator	Re: What were they thinking? in reply to TheOldHokie, 01-22-2013 05:47:19   TOH, How do you shift that thing? Looks interesting. Cliff(VA0 [Reply]  [No Email]
TheOldHokie 01-22-2013 09:37:09 108.22.203.170 Report to Moderator	Re: What were they thinking? in reply to Cliff(VA), 01-22-2013 07:18:24   Quoting Removed, click Modern View to see Don't know for sure yet :oops: The reduction gear shifter is the sliding collar that is splined to the output shaft and it shifts the same way the PTO shifts. When shfted forward it engages the transmission output shaft directly via a set of dog clutch teeth locking the gearbox output shaft to the transmission output shaft in a 1:1 drive. The planetary eduction gears are not engaged and simply spin free. When shifted rearward it disengages the dog clutch teeth from the output shaft and engages the external gear with the sun gears. That produces a 3.5:1 reduction on the transmission output speed. The OEM shift rail for the PTO has to be rolled to the side similar to the the NAA to get clearance for the gearbox and I've already munged the PTO housing shown in the pictures to do that. Building a modified linkage is one of the remaining efforts. Then a second linkage gets added, probably on the right side, for shifting the reduction gearbox. It's only been a bit over 3 years since I first embarked on this project so things are moving right along :roll: TOH PS> Any resemblance to the Howard planetary reduction gearbox used on the NAA and later tractors is pure coincidence..... [Reply]  [No Email]
JMOR 01-22-2013 06:46:22 72.181.173.171 Report to Moderator	Re: What were they thinking? in reply to TheOldHokie, 01-22-2013 05:47:19   Quoting Removed, click Modern View to seeLooks like you maybe already sold one to make this Model T tractor go so slow! :lol: http://www.youtube.com/watch?v=iBcYQD505Ns [Reply]  [No Email]
JMOR 01-22-2013 06:45:58 72.181.173.171 Report to Moderator	Re: What were they thinking? in reply to TheOldHokie, 01-22-2013 05:47:19   TheOldHokie said: (quoted from post at 09:47:19 01/22/13) ZANE said: (quoted from post at 19:12:10 01/21/13) I'll bet that if the TheOldHokie put his mind to it he could make us a set of gears to about half the speed of the 8N four speed reverse?????? Zane Thanks for the vote of confidence Zane :oops: I have put my mind to it and have produced gearing for 5 prototype gearboxes. In keeping with the Zane Sherman tradition of "fun" product naming I dubbed it the HokiePokie :roll: The gears are made and all that remains is to find time to finish the gear carrier ant the modiications to the Ford PTO shifter and linkage mechanism. Then it's install and test the thing. The reduction ratio is 3.5:1 in all gears forward and reverse so the speed reduction is significant - e.g. roto-tilling speeds. TOH Click on the thumbs for a bigger image. [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1273.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1292.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_1277.jpg][/URL] [URL=http://s4.photobucket.com/albums/y110/TheOldHokie/Hokie%20Pokie/IMG_0881_1.jpg][/URL] Looks like you maybe already sold one to make this Model T tractor go so slow! :lol: http://www.youtube.com/watch?v=iBcYQD505Ns This post was edited by JMOR at 06:47:07 01/22/13. [Reply]  [No Email]
TheOldHokie 01-22-2013 09:42:05 108.22.203.170 Report to Moderator	Re: What were they thinking? in reply to JMOR, 01-22-2013 06:45:58   Quoting Removed, click Modern View to see Close but I'm shooting for a bit lower ground speed - something under 1 MPH @ 1500 engine RPM in first gear. TOH [Reply]  [No Email]