The GRACO 77X403 is an electric piston pump module designed for automatic lubrication systems, featuring a 90 lb (41 kg) grease reservoir. It is constructed with steel and buna-n rubber for reservoir wetted parts, and is intended to provide reliable, high-pressure grease delivery for industrial and mobile equipment.

Key Features:

• Electric piston pump
• 77X403 / 90 lb (41 kg) reservoir
• Steel and buna-n rubber (reservoir wetted parts); other wetted parts as per manual
• Maximum working pressure: 3500 psi (24.1 MPa, 241 bar)
• Single line parallel automatic lubrication systems; compatible with grease
• Direct-mount electric design for compact installation
• Field-proven, heavy-duty performance in harsh environments
• Self-clears without a follower plate
• Low-level sensor alerts when lubricant is low
• Reliable, follower-plate-free operation
• Designed for ease of maintenance and reliability
• Vent valve included for safe operation

Applications:
In-plant machinery, off-road equipment, on-road vehicles, and other industrial applications requiring automatic grease dispensing in harsh environments.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Ensure proper electrical connection (24 VDC for low-level sensor)
• Follow all safety and installation guidelines in the GRACO manual
• Use only compatible lubricants as specified
• Regularly inspect and maintain the pump and reservoir for optimal operation
• Consult the manual for specific installation and maintenance procedures