LESSON 11 · ADVANCED · SHORT LESSON
Counterbalance Valves
Helps control an overrunning load that would otherwise drive the actuator itself.
What is happening technically?
Assess pilot ratio, back pressure and stability together. Adjust for the load and circuit using manufacturer procedures.
In practice
Uncontrolled acceleration of a descending platform requires examination of the load-control circuit.
● Pressure / supply● Return┄ Pilot (illustrative)
Educational diagram only; not a manufacturing or safety circuit. The pilot line illustrates the line style only.
Symptom → check → solution
If movement, pressure or temperature changes, first identify the conditions in which the symptom occurs. Record existing gauge readings. Base maintenance or circuit examination on causes confirmed by measurements.
Select your symptom in Fault Hunter →Quick check
Which is the correct approach before replacing a component?