Graco Proportioning System 26R311

Check if the TSL fluid has turned into a gel

Check if the color of the TSL fluid has darkened

Check if the TSL fluid is diluted with isocyanate

Describe the operating environment conditions

Is a TSL fluid change required based on the inspection?

Follow Pressure Relief Procedure

Remove and clean TSL fluid reservoir

Lift the TSL fluid reservoir (R) out of the bracket and remove the reservoir from the cap.

Flush contaminated fluid out of the lines

Remove contaminated TSL fluid from the system

Flush the reservoir with clean TSL fluid or replace it with a new reservoir

Fill the system with fresh TSL fluid

Enter the current fluid pressure setting

Is the fluid pressure within the optimal range?

Adjust the fluid pressure to achieve an even pattern and proper mixing

Enter the current fluid temperature

Is the fluid temperature within the optimal range?

Adjust the fluid temperature to balance with fluid pressure

Follow the Pressure Relief Procedure

Close the Fluid Inlet Valve (XA) at the pump inlet

Place a container under the strainer base to catch fluid when removing the strainer drain plug (ZB)

Remove inlet cap (ZC) and inlet strainer screen (ZA) from the strainer manifold

Flush the screen with compatible solvent and shake it dry

Inspect the screen for blockage

Inspect the gasket and replace as required

Install the strainer plug (ZB) with the screen (ZA)

Open the fluid inlet valve (XA)

Notice conditions for hose calibration

Ensure Reactor and heated hose are at the same ambient temperature

Verify minimum hose length for Resistance Control Mode

Acknowledge reminder for ambient conditions

Wait for system to measure hose resistance

Proceed with calibration or cancel