Yellow Jacket 77940 Oil Pump

The Yellow Jacket 77940 is a heavy-duty Max Flow oil pump engineered for the rigors of professional field service. Designed as a high-performance HVAC oil transfer pump, this tool enables technicians to perform compressor oil charging or removal with precision. It delivers a high displacement of 2.6 oz. per stroke and is rated to overcome system pressures up to 250 PSI, allowing for oil additions while the equipment remains operational. This refrigeration oil pump features a universal tapered stopper that fits 1, 1.5, and 5-gallon oil containers, ensuring a secure seal across various lubricant brands. The 77940 is compatible with all lubricant types, including mineral, polyolester (POE), and alkylbenzene oils. The inclusion of a dedicated suction hose allows for the efficient removal of oil from the crankcase, making it a true combination tool. Its robust construction ensures long-term reliability when handling high-viscosity fluids in demanding commercial environments.

• High-Pressure Capability: Rated for pressures up to 250 PSI, allowing for fluid transfer without shutting down the system.
• High-Volume Displacement: Moves 2.6 oz. per stroke, significantly reducing the time required for large-scale oil charges.
• Versatile Compatibility: Engineered for use with all common refrigeration lubricants and fits multiple standard container sizes.
• Dual-Action Utility: Includes a siphon hose for oil removal, providing a complete solution for maintenance and fluid recovery.

Common Questions

How to add oil to a compressor under pressure?

The 77940 is specifically designed for this application; connect the pump to the oil container and the discharge hose to the system access valve. The pump’s internal check valve accommodates pressures up to 250 PSI during the stroke.

What oil pump fits a 5-gallon bucket?

This unit features a tapered rubber stopper that fits securely into the neck of standard 1, 1.5, and 5-gallon lubricant containers.

How do you remove oil from a refrigeration system?

By utilizing the included suction hose, the pump can be configured to siphon spent oil out of the compressor crankcase and into a recovery container.

Warning

Cancer and Reproductive Harm - www.P65warnings.ca.gov

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.