Hydrostatic pedal pulsating

[K man]

Well, that is kind of a puzzler.. The only time in my DK35se, I get any pulsing is when the RPM's are real low, and the tractor is just "dogging" around barely moving.. Cranking up the RPM's a bit always fixes it.. I don't know what the problem could be.. best contact the dealer. I do believe that the pedal on a CK series is direct connect to the swash plate and does not have the hydraulic connection that the DK series has. Having never spend any time on a CK series, I can't really add much real world experience. I liked your pictures, they were very well composed.

The only time my CK30 HST pulsates is when like you have mentioned koua at very low rpm other than that never a problem.

 

[K man]

Hi everyone,
I just bought my ck30 hst. about a month ago and have about 10 hrs. on it now. I noticed recently that when you first start up the tractor and are on level ground in med. and high range the pedal will pulsate a little when you move forward and backwards, but more so in high. After your done using the backhoe and or the loader for awhile and then try moving the tractor on the level in either range the pedal pulsates a lot worse, especially in high and the tractor responds to the pedal by a jerking motion moving in either direction. The pedal actually gets harder to push down and feels like there is pressure built up in the hydrostat and it's pushing back at you. I have driven other hydrostatic trans. and never experienced this before. I know there is a wealth of knowledge on this site and I thought I would ask all of you if you have any ideas what might be going on with my tractor before contacting my dealer about this? Another question I have is I noticed that sometimes when I try to change ranges I have to move the loader up or down to get the lever to move? I read some others had the same problem and did this to get it to shift ranges. Was wondering what may be the reason for that also? I appreciate any and all help in this matter.
Thank You

PS, Got the pictures taken of my ck30, but have to make them smaller to fit format.View attachment 430604View attachment 430605View attachment 430606View attachment 430607View attachment 430608

Your pictures are great man you see everything nice and clear.:thumbsup: I wish I would of had gotten a backhoe on my CK cause I could use one sometimes but not enough to purchase one. I myself still can't download pics on this site.:confused2: