4720 surging

[jwilkes]

my 4720 is surging when you mash the pedals. I have checked hydraulic fluid,changed the filter,clean the screen,everything I can think of. Anybody had this problem? It's a hydro by the way

 

[jd110]

Is the engine speed surging or just the ground speed? If it is ground speed, try turning off the load match feature to to see if it changes. If that helps, you probably have a bad engine speed sensor. If the engine speed surges, then you might have a plugged fuel filter or restricted fuel line.

 

[jwilkes]

It's the ground speed.

 

[radman1]

Like jd110 said, check you load match button to see if it is on. Your speed will vary depending on terrain and load if load match is on. With it on, it will sacrifice speed in order to maintain rpm and then it will speed up with less work on the engine. I leave mine off most of the time because I can't stand the changing speed. For me, it is really only used for FEL work and even then I usually leave it off. It is more automatic for me to vary the hydrostat with my foot rather than have some computer do it for me.

 

[jwilkes]

No, it's not the loadmatch it's like it's bad low on fluid or the controler in the pedals is going bad.