Go BottomJD 4500 Compact Makes Chattering Noise
 | jtdday
Join Date: Jun 2013 Posts: 25 USA 
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2021-11-25 200799
We have two 4500 compact tractors that have the same trouble. When out on the road using C3 or4 around 1500-2000 RPM between fields I can hear a chatter coming from underneath and cant tell from what area. I first thought that it was coming from the DIFF but now it sounds like the front area? I don't hear it while in the field when the RPM is at 2000-3000 but running in a lower speed B-3 or 4. Any one have an idea?
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| GCGRIMES
Join Date: Apr 2011 Posts: 10 Milford, Nebraska
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2022-05-15 201007
Did you find out what was chattering? ....
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| jtdday
Join Date: Jun 2013 Posts: 25 USA
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2022-05-15 201012
No not yet, your the only one that has replied to this post.
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| Rungreen
Join Date: Dec 2012 Posts: 11 Missouri
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2022-05-16 201014
Check the front drive shaft, ujoints as well as the yokes on the front diff and transmission output. I don't think the ujoints can be greased. ....
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 | Chief
Join Date: Jul 2003 Posts: 4299 Southwest MiddleTennessee 
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2022-05-16 201019
Was the tractor engage in 4WD while running that fast on the road? ....
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| Rungreen
Join Date: Dec 2012 Posts: 11 Missouri
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2022-05-16 201020
Everything is still turning except the engaging gear in the transfer case. BUT, it us still a valid question. I certainly hope they aren't roading it engaged. ....
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| jtdday
Join Date: Jun 2013 Posts: 25 USA
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2022-05-16 201022
Chief, no we don’t travel on the road with four wheel engaged. But maybe that’ll be a good test putting it in four wheel (adding pressure to the differential ) and take it out on the road and see if it still chatters. ....
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| jtdday
Join Date: Jun 2013 Posts: 25 USA
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2022-05-17 201023
Run green, thank you for your tip. I have one in the shop now for service. I will check that. ....
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| jtdday
Join Date: Jun 2013 Posts: 25 USA
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2022-05-17 201024
Run green, thank you for your tip. I have one in the shop now for service. I will check that. ....
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| Rungreen
Join Date: Dec 2012 Posts: 11 Missouri
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2022-05-17 201025
I know the 2105s and that series have a drive shaft between the engine and hydrostat that have greasable u joints and have woodruff key issues, come loose etc. They are quite involved to replace, pulling the engine or rear diff/hydrostat unit. Sadly, the book doesn't give that as a service point or an interval. Many people have found out the hard way. ....
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| jtdday
Join Date: Jun 2013 Posts: 25 USA
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2022-05-17 201035
Rungreen, My first thought that it could be some internal issue that some one had come across earlier. Put I can slide under and look at the shaft that has a plastic tub the full length. ....
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