The GRACO LM4633 LubeMaster® Pump is an electric piston pump designed for efficient delivery of grease or oil in industrial lubrication systems. It features a 20-pint (9.46 liter) metal reservoir and is intended for use in applications requiring reliable, continuous, or time-controlled lubrication cycles, such as mills, crushers, presses, conveyors, and shears.

Key Features:

• Electric piston pump
• LM4633
• Metal reservoir, robust housing
• Output per stroke: 0.010–0.050 in³ (0.16399–0.8195 cm³); Output range: 0.010–0.862 in³ (0.1619–143.41 cm³) per minute (varies by cycle rate and gear ratio)
• Max operating pressure: 5,000 psi (340 bar)
• Works with Series Flo or reversing systems; suitable for oil or grease up to NLGI #2
• Explosion proof: Class I, Group C and D; Class II, Group E, F, and G (LOH Low Level Option only)
• Wall or floor mountable
• Totally enclosed pumping unit
• Anti-friction drive bearings
• Simplified maintenance
• Rugged and compact design
• Suitable for continuous or time-controlled lubrication cycles

Applications:
Industrial lubrication for mills, mill tables, crushers, presses, conveyors, shears, and similar equipment requiring reliable, automated lubrication.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety in demanding industrial environments.
• Ensure proper wall or floor mounting according to application requirements
• Verify electrical compatibility (230/460V, 3-phase, 60 Hz)
• Follow manufacturer guidelines for reservoir filling and system priming
• Regularly inspect and maintain bearings and seals for long service life
• Monitor reservoir levels and refill as needed
• Check for leaks and wear in seals and bearings
• Schedule routine inspections and lubrication of moving parts
• Use only recommended lubricants and replacement parts