Draw bar question

   / Draw bar question #1  

Dave5264

Gold Member
Joined
May 25, 2009
Messages
374
Location
Near North Ontario Canada
Tractor
08 Montana C5264, 2011 McCormick CX100 XS
Newbie question wrt draw bar for pulling the haybine and Baler.

the operators manual says the eye in the draw bar should be 4" past the edge of the rear tire. and 14" from the end of the pto shaft.

the draw bar I have has a dual tip (like the one on the bine/baler), ie an over /under section for the pin to drop through, and looks like the manual suggests a single bar, I guess that fits between the dual tip coupling on the bine.

the hole/eye in my Draw bar is exactly level withthe rear edge of the tire (4" short), but is 14" from the pto shart.

finally - my question (s) - will my Bar work ok as is? do I need a short 4" pc of draw bar ? or do i need a single flat bar thats 4" longer than the one I have ?
 
   / Draw bar question #2  
Dave, if I understand you right what they're trying to establish with those dimensions is proper clearance for pivoting while you're turning the tractor. What you don't want is the implement to "jackknife" into the rear tire or have too much interference in the PTO drive line. If it were mine I'd hook it up and get a feel for what kind of turning radius you can make (with the haybine running) and it still not interfere anywhere and not too much bind on the shaft. Your set up may work fine but you'll have to put it through some series of situations to see what works and what doesn't. Let us know what you find out and post some pics if you can. I hope this helps.:eek:
 
   / Draw bar question #3  
Follow Jays instructions.:thumbsup:

It ain't no fun picking up an implement with a rear tire when turning.:eek:
 
   / Draw bar question #4  
The 14 inches from the end of the PTO shaft to the center of the hole is standard for a 540 rpm PTO (16 inches for 1000 rpm PTO). This ensures the pivot point for the u-joint on the PTO driveline is the same as the pivot point on the drawbar and reduces the stress on the u-joint. This is more important than the tire clearance since the haybine and baler usually have a long tongue and tire scrubbing can be avoided by not turning as sharp.
 
   / Draw bar question #5  
The 14 inches from the end of the PTO shaft to the center of the hole is standard for a 540 rpm PTO (16 inches for 1000 rpm PTO). This ensures the pivot point for the u-joint on the PTO driveline is the same as the pivot point on the drawbar and reduces the stress on the u-joint. This is more important than the tire clearance since the haybine and baler usually have a long tongue and tire scrubbing can be avoided by not turning as sharp.

Especially if the implement you're pulling doesn't have a CV joint on the PTO shaft, it's very important that you get the distance right, so that you have the geometry correct, and you minimize "PTO shaft chatter". The op manual should have an ideal distance from the tractor PTO shaft and the center of the drawbar hole.
 
   / Draw bar question
  • Thread Starter
#6  
Thank you guys, will try it out and see how it works
 
 
 
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