Kolpen Posted June 30, 2009 Share Posted June 30, 2009 While I wait for some parts for the Kverneland plow, I thought I would start building a new frontaxle for the JD 7920. The plow features a mechanical system that puts pressure to the frontaxle via the topshaft. Up to 1 pound of pressure just by pulling the plow….. !!! All that would not be used at all with a normal 2WD tractor. So that triggered me to start building the new axle. Some details. The axle will have it’s own gearmotor. It have the exact same gearratio as the rearaxle but the front diff. is 1,5:1 and rearaxle is 2:1. The differential works by 2 ‘one-way’ needlebearings. When it runs forward the axle is actually locked (diff. lock). But in turns the outer wheel spins faster than the innerwheel. (power to innerwheel only = 3WD). ‘One-way’ means that I will only have 4WD when it runs forward and 2WD in reverse. The complete axle will feature 14 bearings in different sizes. The basic diff is almost done, much more to come….. Take care! Anders Kolpen Quote Link to comment Share on other sites More sharing options...
marshman Posted June 30, 2009 Share Posted June 30, 2009 This is just stunning. Cant wait to see it fitted and ready to go Quote Link to comment Share on other sites More sharing options...
FarmtoysDK Posted June 30, 2009 Share Posted June 30, 2009 Looking great as usual. Sonny Quote Link to comment Share on other sites More sharing options...
B O R Posted June 30, 2009 Share Posted June 30, 2009 looking forward to see,ing this one done Quote Link to comment Share on other sites More sharing options...
--tractorman-- Posted June 30, 2009 Share Posted June 30, 2009 looking forward to see,ing this one done Agreed there... also it will be very interesting to see the progress.. Quote Link to comment Share on other sites More sharing options...
Murray Posted July 1, 2009 Share Posted July 1, 2009 some outfit this will turn out to be, well done Quote Link to comment Share on other sites More sharing options...
LeeRoebuck Posted July 1, 2009 Share Posted July 1, 2009 Can't wait to see this as the project develops, loving you work. Quote Link to comment Share on other sites More sharing options...
Kolpen Posted July 6, 2009 Author Share Posted July 6, 2009 Here is a little update to the frontaxle I am building. It's a little rough and square, but it is going in the right direction. The ‘differential’ is done and ready to mount in when the housing is completely done. Still a few things to do on this part. I can’t wait to test this new axle on the tractor…. More to come….. Anders Kolpen Quote Link to comment Share on other sites More sharing options...
Jez Posted July 6, 2009 Share Posted July 6, 2009 Genius! Quote Link to comment Share on other sites More sharing options...
Deere-est Posted July 6, 2009 Share Posted July 6, 2009 I'm glad you know what you are doing because I have no idea! What I do know though is; as far as active members go there is nobody in the same league as you. Anyone (of which there are only three or so on FTF) using brass gets my full attention but the workings and maths you must have to do to source the right parts or to make the right parts is where you are right at the top Quote Link to comment Share on other sites More sharing options...
stehos Posted July 6, 2009 Share Posted July 6, 2009 Genius! That was the word I was looking for!!! Jack. Quote Link to comment Share on other sites More sharing options...
Kolpen Posted September 1, 2009 Author Share Posted September 1, 2009 Hello everybody Here is an update to my 4WD John Deere 7x20 frontaxle. Almost ready to paint, but there is still some touch ups to do. The little ball in front, fender brackets, wires + prepare the old wheels to the driveaxles. Here is some photos. Comments are welcome as usual. Anders Kolpen Quote Link to comment Share on other sites More sharing options...
MPR Models Posted September 2, 2009 Share Posted September 2, 2009 I think we're in business :) Amazing Quote Link to comment Share on other sites More sharing options...
Smithy140 Posted September 6, 2009 Share Posted September 6, 2009 you must have so much patience. that axle looks so real. can't wait to see the whole outfit Quote Link to comment Share on other sites More sharing options...
MATTY 7530 Posted September 6, 2009 Share Posted September 6, 2009 Wow looks brilliant your very clever and tidy at your work. Quote Link to comment Share on other sites More sharing options...
dangray21 Posted September 6, 2009 Share Posted September 6, 2009 Your work is amazing, real top end skill, do you build all your parts from scratch or do you buy some and build the rest. looking forward to more of your highly skilled work. Dan Quote Link to comment Share on other sites More sharing options...
caseih1056 Posted September 7, 2009 Share Posted September 7, 2009 Looking great as usual. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.