The GRACO 189438 GUIDE, PISTON is a stainless steel piston guide component designed for use within GRACO displacement pump assemblies. Its primary function is to guide and stabilize the piston during operation, ensuring smooth and reliable movement within the pump system.

Key Features:

• Piston Guide
• Stainless steel
• Designed for use in GRACO displacement pump assemblies (e.g., Check-Mate 800 series)
• Durable stainless steel construction for longevity and corrosion resistance
• Precision-engineered for smooth piston movement
• Essential for reliable pump operation

Applications:
Used in GRACO displacement pumps for industrial fluid handling applications, including lubrication, maintenance, and fluid transfer systems.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment, reducing the risk of premature failure or system downtime.
• Refer to the specific GRACO pump manual for detailed installation instructions
• Ensure all components are clean and free of debris before assembly
• Lubricate as recommended in the manual for smooth operation
• Follow torque specifications for related fasteners as outlined in the manual
• Regularly inspect the piston guide for wear or damage
• Replace with genuine GRACO parts as needed to maintain system integrity
• Follow manufacturer-recommended maintenance schedules