MTS Model 286-31 Transient Permeability Pore Pressure Intensifier - Manual (Page 23)

Purging and Filling the Fluid Lines
286.31 Transient Permeability Pore Pressure Intensifier Operation 23
3. Extend the Pressure Intensifier’s piston to pressurize the fluid.
On the RSC, slowly turn the Manual Control to develop a slight positive
pressure.
While purging, keep the pressure as low as practical but positive all the
time. Keep watching the pore pressure as you purge the lines.
If pressure starts dropping and extending the piston does not raise the
pressure, you will have to stop and refill the Pressure Intensifier.
Note If the Intensifier needs refilling during this procedure —
1. Shut off any valve that is draining fluid out of the 286.31.
2. Turn the Permeability Fluid Input 1, Permeability Fluid Input 2,
and Reservoir Return valves to the Close position.
3. Do the steps in “Refill the Pressure Intensifier” on page 41 .
4. Return to the step where you were when the Intensifier ran dry.
5. Turn the Permeability Fluid Input 1, Permeability Fluid Input 2,
and Reservoir Return valves back where they were.