The GRACO 77X522 is a low-level kit that includes a sight glass, electric low-level switch, and cable, designed for monitoring lubricant levels in GRACO equipment. It is constructed from stainless steel and is intended for use with in-plant machinery and off-road equipment to provide visual and electrical indication of low lubricant levels.

Key Features:

• Low Level Switch
• 3/4 in. NPT(m) Thread Mount
• Stainless Steel
• For use with GRACO Dyna-Star systems; requires follower plate 77X500; cannot be combined with Auto-Fill Shut-Off systems
• Provides both visual (sight glass) and electrical (switch) low-level indication
• Reliable stainless steel construction for durability
• Easy to maintain and monitor
• Maximum operating temperature: 150°F (65°C)
• Maximum amperage: 0.4 A
• Power rating: 10 W

Applications:
In-plant machinery, off-road equipment, and other industrial lubrication systems requiring low-level monitoring.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Install the kit with the required follower plate (77X500)
• Ensure proper threading and sealing for the 3/4 in. NPT(m) connection
• Connect the electric low-level switch to an external alarm for automated low-level notification
• Do not use with Auto-Fill Shut-Off systems
• Regularly inspect the sight glass for clarity and cleanliness
• Check electrical connections for integrity
• Follow manufacturer guidelines for installation and maintenance