Grease the fitting on your equipment in the usual manner. Remove the grease fitting and holding the Petromatic in your hand, apply grease to it until grease emerges from the coupler. Then install only HAND TIGHT to the equipment. While supporting the cup with your hand, fill the cup until the disc reaches the red line. Replace the grease fitting cap.

Note : For best results with Petromatic use non-separating multi-purpose greases.