90KW hydraulic plunger pump test bench；

1.

1.

Start the low-voltage oil supply motor

2.

2.

Adjust the low-pressure oil supply pressure control knob to adjust the oil

supply pressure to ~2 MPa;

3. Start the main motor

4. Adjust the speed regulation knob to make the speed reach 800~1800 rpm;

Observe the driving tachometer, flow meter and loading pressure gauge at any

time

5. Adjust the loading pressure control knob to load,

a)

a) Precautions during loading:

Keep the rotating speed constant during pressurization