Caterpillar Industrial Engines 3406

Cooling System Coolant (ELC) - Change

Oil has entered the cooling system and the coolant is contaminated?

Fuel has entered the cooling system and the coolant is contaminated?

Cooling system filler cap removed?

Cooling system drain valve opened or cooling system drain plugs removed?

Note: Adjust the frequency of cleaning according to the effects of the operating environment.

Inspect the aftercooler for these items: damaged fins, corrosion, dirt, grease, insects, leaves, oil, and other debris. Clean the aftercooler, if necessary.

For air-to-air aftercoolers, use the same methods that are used for cleaning radiators.

Personal injury can result from air pressure.

Personal injury can result without following proper procedure. When using pressure air, wear a protective face shield and protective clothing.

Maximum air pressure at the nozzle must be less than 205 kPa (30 psi) for cleaning purposes.

Pressurized air is the preferred method for removing loose debris. Direct the air in the opposite direction of the fan’s air flow. Hold the nozzle approximately 6 mm (0.25 inch) away from the fins. Slowly move the air nozzle in a direction that is parallel with the tubes. This will remove debris that is between the tubes.

Pressurized water may also be used for cleaning.

Warning: Batteries give off combustible gases which can explode. A spark can cause the combustible gases to ignite. This can result in severe personal injury or death.

Ensure proper ventilation for batteries that are in an enclosure. Follow the proper procedures in order to help prevent electrical arcs and/or sparks near batteries. Do not smoke when batteries are serviced.

Turn the key start switch to the OFF position. Remove the key and all electrical loads.

Turn OFF the battery charger. Disconnect the charger.

The NEGATIVE “-” cable connects the NEGATIVE “-” battery terminal to the ground plane. Disconnect the cable from the NEGATIVE “-” battery terminal.

The POSITIVE “+” cable connects the POSITIVE “+” battery terminal to the starting motor. Disconnect the cable from the POSITIVE “+” battery terminal.

Note: Always recycle a battery. Never discard a battery. Return used batteries to an appropriate recycling facility.

Air Starting Motor Lubricator Oil Level - Check

Is the fuel supply to the engine OFF?

Air Tank Moisture and Sediment - Drain

Warning: Only trained personnel should perform this maintenance.

Oil has entered the cooling system and the coolant is contaminated?

Fuel has entered the cooling system and the coolant is contaminated?

If any of the above checks fail, report to the maintenance team and stop the procedure.

Water pump and water temperature regulator inspected after the cooling system has been drained?

Water pump, water temperature regulator and hoses replaced if necessary?