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1066 PTO noise

M

mjs

Member
Was baling with my 1066 and JD530 baler over the weekend. When turning to the right there is a noise under the seat in the rearend that sounds like a bearing is loose or a shaft vibrating. It does not make this noise when turning to the left so needless to say I made all turns to the left.
Now having said that, I had this tractor into the IH dealer a year ago and they went thru the pto assembly so i would assume everything is in order.
I never encountered this noise when brushhoging with my 14" pull behind although was using the 540 pto on the brushhog and the baler is set up for 1000. Yes, I have both shafts!
I haven"t studied the baler pto shaft but maybe it is binding and causing the noise in the rearend.
Anybody have any ideas or suggestions.
 
Check the alignment of the PTO Forward U joint over the pivot point of the hitch. If it is offset either any it can stretch, or compress on a turn. JimN
 
I bet the problem is with the baler not the tractor.

If it were the tractor it would do it all the time not just on turns.

As Janicholson said check your drive line on
the baler.

Gary
 
Are ya sure it's not that 3-point hitch lever vibrating in the quadrant? They can set up quite a "rattle" noise at times.

Allan
 
I checked the relationship of the drawbar with the pto driveline last night. The drawbar is straight down the centerline with the pto driveline. I looked over the U-joints on the baler and cannot see any place where the yolks could have been making contact but would have thought if that was the case they would have made contact in both directions.
I am in agreement that I think it is with the baler and not the tractor but I'm a little stumped. Guess I will set up the tractor in the yard in a right turn and have a friend engage the pto and watch/listen to see if I can pinpoint it from the ground.
I am still open to suggestions before I do this.
 
I am going to recheck this tonight. The owner's manual says from end of pto shaft to C/L of hitch pin should be 16". Only question here is that on a JD tractor that I assume they are referring to in the manual which is interchangable in the same hole as the 540 shaft vs. that 540 and 1000 shafts on my 1066 being in different locations. One would have thought that if this was an issue it would have made noise on both the right and left turns though!
 
Could the two universal joints of your PTO shaft be oriented wrongly with respect to each other? With some older PTO shafts one could assemble the two telescoping halves OR the universal joints wrongly. Look at another or newer PTO shaft how the universal joints are oriented.
If the PTO shaft is mounted wrongly, vibrations are induced at either end of it (especially in curves). Since a baler has a flywheel, the vibrations "go" to the tractor.
Clear as mud? HTH, Hendrik
 
need help explaining what i remember. something about timing u-joints and acceleration/deceleration of joint as it flexes will cancel each other as long as angle of both joints is the same. however with a trailed unit like a baler or combine the wheels of unit are not equally spaced from center line of tractor resluting in change of angle when turning toward offset side creating sharper angle of drive shaft resulting in u-joint hammer. maybe i'm all wet and need smartening up if so help will be appreciated leroy
 
(quoted from post at 09:20:38 10/06/08) I am going to recheck this tonight. The owner's manual says from end of pto shaft to C/L of hitch pin should be 16". Only question here is that on a JD tractor that I assume they are referring to in the manual which is interchangable in the same hole as the 540 shaft vs. that 540 and 1000 shafts on my 1066 being in different locations. One would have thought that if this was an issue it would have made noise on both the right and left turns though!
Click to expand...

The 1000 RPM shaft has a longer span between the end of the shaft and the center of the hitch pin. On the dual speed PTO's like your 1066, if the dimension is correct for the 540 shaft it will also be correct for the 1000 shaft without changing anything.
 
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