BUCKET & ADJUSTER GP 5195406 - Caterpillar

General
Fill the fuel tanks at the end of convenient period of operation to drive out moist air and to prevent condensation. Do not fill the tank to the top. The fuel expands as it gets warm and may overflow.Do not fill fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to fuel system parts.
After changing fuel filters, open fuel supply and return valves that were closed. The fuel system will remove air through the return.Drain water and sediment from any fuel storage tank weekly, and before the tank is refilled. This will help prevent water or sediment from being pumped from the storage tank into the engine fuel tank.Use only fuel as recommended in this section.Fuel Tanks
Fuel tanks should contain some provision for draining water and sediment from the bottom of the tanks.Some fuel tanks use supply pipes that allow water and sediment to settle below the end of the fuel supply pipe. This water and sediment should be drained at each oil change. Do not use fuel tanks with supply lines that take fuel directly from the bottom of the tank.The fuel return line from the engine should return fuel to the tank from which it was taken. Do not return fuel to the day tank, as fuel overheating could occur which will cause deterioration of engine performance. The fuel return line should deposit fuel at a distance of about 250 mm (10 in) from the supply line. This allows the engine to get warm fuel from the tank. It also allows air to escape from the return fuel without being pulled back into the engine.Fuel Lines
Avoid sharp angles and use as few fittings and connections as possible. Moisture in the fuel will tend to collect and freeze at low points in the fuel lines. Fuel should be drawn from the tank closest to the engine. Fuel lines should travel the most direct route to the engine compartment.Fuel Heaters
Use of a fuel heater can help eliminate some cold weather problems. A fuel heater should be installed so that the fuel is heated before it goes into the first or primary fuel filter. Select a fuel heater that is mechanically simple, yet adequate for the application. The fuel heater should also prevent overheating of the fuel. Disconnect or deactivate the fuel heater in warm weather. A loss of engine power will occur if the fuel supply temperature exceeds 30°C (85°F). Heat exchanger-type fuel heaters should have a bypass provision to prevent overheating of the fuel in warm weather operation.For further information on fuel heaters, contact your Caterpillar dealer.Fuel Filters
The use of a primary fuel filter is recommended. The micron rating and location of a primary fuel filter is important in cold weather operation. The primary fuel filter and its fuel supply line are the most common components affected by cold fuel.The micron rating of the primary fuel filter should only be fine (low) enough to protect the fuel transfer pump. A very fine (low