Graco Proportioning System 26R321

Follow Pressure Relief Procedure

Verify TSL fluid pump operation

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

Does the TSL fluid need to be changed?

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, page 32.

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.

Thoroughly flush the screen with compatible solvent and shake it dry.

Inspect the screen. Ensure no more than 25% of the mesh is restricted.

Inspect the gasket and replace as required.

Use clean, dry, oil-free compressed air on control modules

Use clean, dry, oil-free compressed air on fans

Use clean, dry, oil-free compressed air on motor (under shield)