PIPE AS-AIR TRANSFER 2P3337 - Caterpillar

Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire.
Illustration 1 g00467033
(1) Vent valve
(2) Base
(3) Can
(4) Element
(5) Drain plug Water in the fuel can cause fuel system components to fail. Drain the water separator daily. Drain the water separator more frequently when a large concentration of water is present in the fuel system.
Close the fuel supply valve.
Use a suitable container to catch any fuel that might spill. Clean up any spilled fuel immediately.
Remove drain plug (5). Depress vent valve (1) in order to start the flow. Allow the water to drain into a suitable container. Allow the water to flow until fuel flows from the drain.
Install the drain plug. Dispose of the liquid properly.
Open the fuel supply valve.
The water separator is under suction during normal engine operation. Ensure that the drain valve is tightened securely to help prevent air from entering the fuel system.