# Pump Operation

1. Close the pressure release valve (clockwise).

2. Hold down the On/Off valve. The pressure gauge will slowly indicate pressure.

   WARNING

   It is recommended that the pressure should never exceed 90% of the Gauge’s maximum pressure rating.

3. Once the desired pressure is reached, release the On/Off valve. The valve will spring back to the Off position. Check the pressure reading on the oil pressure gauge. (Ensure the pressure is holding steady before approaching any pressurised bolt tensioning equipment).

4. To release the hydraulic pressure slowly open the pressure release valve (anticlockwise), the pressure will slowly fall.

In this Section

- Shut down procedure
- Adjustment of Pressure Release Valve (PRV)