The item in the image is a Caterpillar (CAT) manual grease pump bucket, a heavy-duty service tool designed for high-volume lubrication of industrial and construction machinery. [1, 2]
Key Features and Use
Purpose: It is used for quick, effortless lubrication of equipment that requires large volumes of grease daily, such as excavators, bulldozers, and agricultural machinery.
Design: It features a thick-gauge metal housing, a sturdy handle for portability, and a manually operated piston pump.
Capacity: Commonly available in 10kg, 16L, and 20L (approx. 5 gallons) sizes.
Performance: Can generate high pressure, often ranging between 3,000 to 5,000 PSI with just a few strokes, allowing it to force thick grease into high