The GRACO 186647 BEARING, PISTON (UPPER) is a replacement part designed for use in GRACO pumps, specifically to support the piston assembly in the upper section. The material is not specified in available sources, but it is engineered for durability and reliable operation within GRACO equipment. Its intended function is to ensure smooth movement and reduce friction for the piston within the pump assembly.

Key Features:

• Piston Bearing (Upper)
• Designed for GRACO pumps (specific models not listed in available sources)
• Engineered for durability
• Supports smooth piston movement
• Reduces friction in the pump assembly

Applications:
Used in GRACO pump assemblies to support and guide the piston in the upper section, ensuring reliable operation in fluid transfer and spray applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, longevity, and compatibility with your equipment.
• Refer to the equipment manual for specific installation instructions.
• Ensure the pump is depressurized and isolated before replacing the bearing.
• Inspect the piston and surrounding components for wear or damage during replacement.
• Use appropriate tools and follow safety procedures.
• Regularly inspect the bearing for signs of wear or damage.
• Replace the bearing as part of scheduled maintenance or when performance issues arise.
• Keep the pump assembly clean and lubricated as recommended by GRACO.