SPRING 7J6845 - Caterpillar

The process of compressing air results in high temperatures, which are transmitted to the cylinder block, cylinder head, and pistons. If this heat is not removed, the air compressor will experience short life due to excessive carbon buildup, piston seizure, or valve breakage.Air that flows through the engine compartment of the vehicle aids in cooling the air compressor. The cylinder head and the ring travel area of the cylinder block of the air compressor are cooled with coolant from the engine.The coolant inlet should be into the cylinder head of the air compressor or the cylinder block. The coolant exits at the opposite end of the cylinder head. The coolant outlet should not be at the same end as the coolant inlet. A line is connected from the engine cooling system to the air compressor. The coolant flows through the air compressor. The coolant returns to the engine through a line that connects to the cylinder head of the air compressor and routes to the engine cooling system.