sabertooth controller on eagle dozer problems

[ariari]

Swapped sabertooth 2x12 to eaglemach dozer. Dozer runs fine but when using hydraulics at the same time the sabertooth stops and blinks red error lights but operation continues instantly when I stop using hydraulics.

No problems running pump on idle and dozer, but operating valves makes dozer stop.

I am wondering is this 12 amps too small controller for this machine or what is causing this.