The GRACO 77X521 is a retrofit kit designed to automatically shut off lubricant flow from a fill pump to the reservoir in automatic lubrication systems. It is constructed for use with GRACO equipment and is intended to eliminate the need for manual monitoring during reservoir refilling, preventing spills and ensuring efficient, spill-free operations. The kit is typically made from robust materials suitable for industrial environments, though specific material details are not specified.

Key Features:

• Auto-Fill Shut Off Retrofit Kit
• 77X521
• Industrial-grade, robust design for harsh environments
• Maximum working pressure: 34.5 MPa (as per inlet specification, but confirm for full system compatibility)
• Electric Dyna-Star Pump and Reservoir
• Remote fill manifold and auto-fill shut off
• Ground-level fill port eliminates climbing
• Spill-free, single-person operations
• Mechanical system for reliability
• Designed for high wear-and-tear environments
• Backed by worldwide customer service and industry-leading warranty

Applications:
Used in automatic lubrication systems for vehicles and industrial equipment to ensure efficient, safe, and spill-free reservoir refilling.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and warranty coverage.
• Follow the specific installation instructions provided in the GRACO manual for the 77X521 kit.
• Ensure all connections are secure and properly torqued.
• Use only the recommended supply hoses and fittings as specified in the kit.
• For easier installation, loosen (but do not entirely remove) manifold screws to allow for easier tube installation, then re-tighten after assembly.
• Consult the manual for detailed torque specifications and assembly diagrams.
• Regularly inspect hoses and fittings for wear or leaks.
• Ensure the system is clean and free from debris before installation.
• Use only compatible lubricants and replacement parts.