The GRACO 77X402 is an electric piston pump module designed for automatic lubrication systems. It features a 60 lb (27 kg) grease reservoir constructed from steel and buna-n rubber wetted parts. This module is intended to provide reliable, automatic lubrication for in-plant machinery, off-road equipment, and on-road vehicles.

Key Features:

• Electric piston pump
• 77X402 / 60 lb (27 kg) reservoir
• Steel, buna-n rubber (reservoir wetted parts); see manual for pump wetted parts
• Maximum working pressure: 3500 psi (24.1 MPa, 241 bar)
• Single line parallel automatic lubrication systems; compatible with grease
• IP69K (low level sensor)
• High reliability and durability
• Long service life
• Automatic lubrication capability
• Reduces unplanned downtime and maintenance costs
• High efficiency motor (hydraulic configuration, not applicable to electric model)
• Easy maintenance and robust construction

Applications:
In-plant machinery, off-road equipment, on-road vehicles requiring automatic lubrication

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Follow the installation instructions in the Dyna-Star HP and HF Pump manual (332514)
• Ensure proper electrical connections (24 VDC for low level sensor)
• Use compatible metering devices and lubricants
• Regularly inspect and maintain wetted parts for longevity
• Consult the equipment manual for detailed installation and maintenance procedures
• Contact a GRACO specialist for compatibility and troubleshooting
• Regularly check reservoir and pump for leaks or wear