B7510 creeping forward when idling

Wyflyer

New member

Equipment
B7300
Nov 6, 2015
5
0
1
Uvalde, tx,usa
I recently bought this B7510 as a fixer upper project. It has 425 hrs. I fixed injectors, got it running and sorted out. Now have one last issue....

With it idling and feet off the pedals it creeps forward at turtle speed. I've looked over the forward/reverse linkages and it appears any adjustment or alignment hardware is behind the gray steel support frame around the transmission.
Anyone know how this works and where the adjustment is located? And can it be serviced without removing the floors and framework?
thanks
 

RCW

Well-known member
Lifetime Member

Equipment
BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
Apr 28, 2013
8,468
4,170
113
Chenango County, NY
There's a variety of reasons the pedal won't center, and some of the issues are specific to certain models. Usually it's a matter of the damper, linkage lubrication, or something bent.

Given your tractor was bought as a "fixer upper", I'm guessing something just isn't working freely to return the pedal to center. My first thought would be the damper, but there can be other issues.

Try www.kubotabooks.com for a workshop manual (WSM).

Go to https://apps.kubotausa.com/illustrated-parts/ . Agree to legal, put in your B7510 model, OPEN the book for your model, then SPEED CHANGE, then SPEED CONTROL PEDAL. Will show a parts diagram of the linkage.

An HST "creep" comes up regularly for several models. These threads from OTT might give you some ideas:

https://www.orangetractortalks.com/forums/showthread.php?t=36221&highlight=damper

https://www.orangetractortalks.com/forums/showthread.php?t=35970

https://www.orangetractortalks.com/forums/showthread.php?t=29513
 
Last edited:

Wyflyer

New member

Equipment
B7300
Nov 6, 2015
5
0
1
Uvalde, tx,usa
I was able to look at the correct diagram and see how it works and make the adjustment. Thanks for the guidance. There is an eccentric bushing which changed the engagement of the rocker cam which centers it in the correct position.
After I learned how it works from the diagram it was a simple 10 minute adjustment using a 12mm socket and a flat screwdriver.
thanks