2015HST crawling forward with foot off the forward/reverse pedal

[igm]

I compared the diagram to my HST linkage, and alas, it's not remotely similar, oh well-- the 2015 setup is very much simpler. I see only one bolt/locknut that might be the culprit, but it's accessible from the side and I'm pretty sure the service manager said I need a look from below (not the side) with a flashlight to even see it, so dunno. Will investigate further.

 

[RNeumann]

Sorry about that. I should have added my book is for the 1533/1538.

 

[igm]

Here are the instructions for adjusting the hydrostatic drive pedal on the 15-series (2015, 2615, 3015):

 

[MarcoOL]

Thanks very much! Will report back.

I’m so glad that stumbled across this forum page. My tractor just started doing the same symptoms you described. Extremely cold here in Maine and just blamed it on that.
Haven’t tackled the adjustments yet but you steered me in the right direction. Thanks again.