Forums
New posts
Forum list
Search forums
What's new
New posts
New resources
Latest activity
Trending Threads
Resources
Latest reviews
Search resources
FarmTV
Farm Compare
Search
Tokens/Searches
Calendar
Upcoming Events
Members
Registered members
Current visitors
New Resources
New posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Forum list
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
Farm Machinery
Machinery
John Deere direct drive gearbox?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="DrDunc" data-source="post: 7530822" data-attributes="member: 615"><p>CNH have their dual clutch gearbox (active 8 or something they've branded it?). I had one of the first production versions it on demo. Very smooth shifts but few actual gearing variations and a needs a creeper 'box for does work, exactly the same as the Deere DD.</p><p></p><p>There doesn't seem to be any issues with the CNH design in comparison to Deere, however complex they both are. CNH evolved from Ford, which had the well earned reputation of needing "Fixed Or Repaired Daily", yet they have engineered a reliable dual clutch gearbox when it seems Deere have not.</p><p></p><p>The Deere direct drive, as well as lacking ratios for field work and lacking slow speeds, is also very harsh for PTO work where gear shifts are required, such as mowing. When shifting up there are large and fast engine speed variations down the driveline. It was awful listening and watching my neighbour cutting grass with the demo they had (was it really near 8 years ago!?!) I was waiting for the mower to go bang it was that savage!</p><p></p><p>I have to say that it is a lovely gearbox for transport work though. Much faster and smoother shifts even than the very good auto quad. It is also a very efficient design with far fewer power losses than the auto power vario.</p><p></p><p>With much in life, you get what you pay for in my opinion: If you're willing to take the risk, DD it's a lovely machine for road work, but they're "cheap" second hand for a reason.....</p></blockquote><p></p>
[QUOTE="DrDunc, post: 7530822, member: 615"] CNH have their dual clutch gearbox (active 8 or something they've branded it?). I had one of the first production versions it on demo. Very smooth shifts but few actual gearing variations and a needs a creeper 'box for does work, exactly the same as the Deere DD. There doesn't seem to be any issues with the CNH design in comparison to Deere, however complex they both are. CNH evolved from Ford, which had the well earned reputation of needing "Fixed Or Repaired Daily", yet they have engineered a reliable dual clutch gearbox when it seems Deere have not. The Deere direct drive, as well as lacking ratios for field work and lacking slow speeds, is also very harsh for PTO work where gear shifts are required, such as mowing. When shifting up there are large and fast engine speed variations down the driveline. It was awful listening and watching my neighbour cutting grass with the demo they had (was it really near 8 years ago!?!) I was waiting for the mower to go bang it was that savage! I have to say that it is a lovely gearbox for transport work though. Much faster and smoother shifts even than the very good auto quad. It is also a very efficient design with far fewer power losses than the auto power vario. With much in life, you get what you pay for in my opinion: If you're willing to take the risk, DD it's a lovely machine for road work, but they're "cheap" second hand for a reason..... [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Farm Machinery
Machinery
John Deere direct drive gearbox?
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top