The GRACO L18AC1 Xtreme Pump Lower is a robust, high-pressure pump component designed for use in industrial fluid handling systems. It is constructed from carbon steel and is engineered to deliver reliable performance in demanding applications, such as lubrication, hydraulic, or spray systems. The part is intended to be used as a replacement or upgrade within compatible GRACO equipment, ensuring efficient fluid transfer at high pressures.

Key Features:

• Pump Lower
• L18AC1 (145 cc, 7400 psi/511 bar)
• Carbon Steel
• 7400 psi (511 bar)
• Compatible with GRACO Xtreme series equipment; check equipment manual for specific compatibility
• High-pressure capability for demanding industrial applications
• Xtreme Seal™ packing stack for enhanced reliability and durability
• Designed for ease of maintenance and serviceability
• Engineered for long duty cycles and consistent performance

Applications:
The L18AC1 Xtreme Pump Lower is suitable for use in industrial lubrication, hydraulic, and spray systems where high-pressure fluid transfer is required. It is commonly used in mining, agriculture, and manufacturing environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of your equipment. Non-genuine parts may compromise system integrity and void warranties.
• Always use a rubber mallet or arbor press to drive the displacement rod out of the lower cylinder; never use a hammer to avoid damage.
• Torque the packing nut to the specified value (for L18AC1, typically 25–30 ft-lb or 34–41 N•m).
• Reconnect the lower to the air motor as per the Xtreme Packages manual (311164).
• Regularly inspect and maintain packing materials for optimal performance.