4720 HST

   / 4720 HST #1  

4720 OWNER

Gold Member
Joined
Jan 6, 2008
Messages
473
Location
WEBSTER, MN
Tractor
JD 4720
On the 4720 HST there is a feature that tells the tractor how far to roll when getting off the throttle. 1 will just about skid the tires if back off too fast and 10 will be like a 'normal' tractor and roll with whatever momentum the tractor has. Question is: What is the mechanism that slows the tractor down? Engine? Brakes? Just curious really. I use a 3 and is great for fluffing hay and snow rearranging. I am guessing when in the field this summer a 10 could be used. Is having the tractor thinking about stopping so much going to give me a headache later in terms of wear and tear?

I love the LoadMatch switch for the motor! No more bogging, and can just throttle up as much as necessary so guess it would be more efficient as well.
 
Last edited:
   / 4720 HST #2  
I believe it is the hydrostatic swash plate being electronically slowed down. I set mine once when it was new, then have never adjusted it again. They do work great, don't they? Love that Loadmatch too...
 
   / 4720 HST
  • Thread Starter
#3  
Did not recognize all of the words in your post but get the gist that it is a convenience feature and not a wear and tear issue. Probably when get in the field this summer may not want the tractor to do all the stopping for me when there is a load on the back.

Have not been here lately since was sick for a couple days.
 
   / 4720 HST #4  
So how do you make that adjustment...haven't had time to read my manual yet.
 
   / 4720 HST #5  
CWP37, it's not something you can understand without reading the manual.

Sincerely, Dirt
 

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