Graco Proportioning System 26R333

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?

Change the TSL fluid if necessary

Describe the operating environment

Use clean, dry, oil-free compressed air to prevent dust buildup on control modules

Use clean, dry, oil-free compressed air to prevent dust buildup on fans

Use clean, dry, oil-free compressed air to prevent dust buildup on motor (under shield)

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 to have the hose at ambient conditions by tapping Continue

Wait while the system measures the hose resistance

Proceed with calibration by tapping Accept or stop by tapping Cancel

Record temperature estimate if displayed

Follow Pressure Relief Procedure

Verify TSL fluid pump operation

Change Transfer Pump Type to Air

Change Transfer Pump Type to Electric

Repeat steps for the other transfer pump motor if calibrating both pumps

Confirm there is no or low inlet pressure by opening recirculation lines (R)