Hst lag

[zenchal26]

So if I push the go pedal super slow I can get pretty smooth starts but if I jam on the pedal it revs up and takes 1-2 seconds before it starts to move and it jumps fwd. Also if I push on pedal normally it will jump fwd. any ideas??

 

[zenchal26]

Even if I push the pedal down like a 1/4” and hold it there it takes 1-2 seconds for it to start moving

 

[kennyr]

That's the way the hydrostatic transmission works on mine as well. It's not built for jackrabbit starts, but my RTV x900 pulls steadily from 0-25 mph in about 15 seconds.

 

[aurthuritis]

tis lag is a function of the servo piston keeping the pressure balanced as the swash plate is tilted.

 

[10-e-c-dirt]

I never noticed HST lag, until I adjusted the HST & throttle, per this post, http://www.nettractortalk.com/forums/showthread.php?t=17626.
Now I notice the lag, may just be me, But it does go up the hill faster..

 

[aurthuritis]

I never noticed HST lag, until I adjusted the HST & throttle, per this post, http://www.nettractortalk.com/forums/showthread.php?t=17626.
Now I notice the lag, may just be me, But it does go up the hill faster..

just curious. did you tach your engine before you adjusted the HST?

 

[Doc]

I never 'nailed' mine so I was not sure ....till I tried it today. I get immediate response when I push the pedal easy or floor it.

 

[10-e-c-dirt]

just curious. did you tach your engine before you adjusted the HST?

Yes, it was only turning 3100, w/no load, I adjusted almost to the safety wired high idle stop, w/no load its about 3525, at the stop was its about 3575, On the farm use I will never hit max RPM's

BTW, I used this tach from amazon, https://www.amazon.com/gp/product/B001N4QY66/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

 

[zenchal26]

My old one had no lag (hesitated to move) a new one at the dealer has no lag I’m pretty sure this is not normal.