The GRACO 188614 BLOCK, PILOT is a small, precision-engineered component made from acetal, designed to function as a pilot block within GRACO air-operated diaphragm pumps. Its primary role is to assist in the control and actuation of the pump’s air valve system, ensuring reliable and efficient operation of the equipment. Key Features: Pilot Block Acetal GRACO air-operated diaphragm pumps (e.g., Huskyt 2150 series) Precision fit for reliable actuation Durable acetal construction for wear resistance Ease of maintenance and replacement Applications:Used in GRACO air-operated diaphragm pumps for controlling air valve actuation, commonly found in industrial fluid transfer and spray applications. Installation Notes: Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment, reducing the risk of premature failure or operational issues. Remove the old pilot block by pulling it straight up and out of the cavity using needle-nose pliers. Inspect all related components (actuator pistons, bearings, o-rings) for wear or damage during replacement. Clean all parts before reassembly and ensure proper torque (50–60 in-lb or 5.6–6.8 N·m) when tightening. Refer to the specific pump manual for detailed disassembly and reassembly instructions.
