COVER-WATER PUMP 1878924 - Caterpillar

You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.Overhaul your engine at the intervals specified in the Maintenance Management Schedule for the power rating of the engine being maintained. Top End OverhaulAccording to the Maintenance Management Schedule, it's time to have your engine overhauled. However, with the exception of burning a little oil and experiencing a slight increase in fuel consumption, you are not having any other problems with your truck engine.The choice to continue running or to overhaul the engine is yours. Maybe there won't be a failure in the immediate future, but there will be a failure at some point in time. The figures shown in the following scenario are based on certain assumptions for the purpose of presenting an example only.Your truck has 525,000 miles (845 250 km) on its 3406B Engine. If the truck runs for 75,000 more miles (120 750 km) and then fails, the repair cost will be between U.S. $0.0085 and $0.0153 per mile (km). However, if you choose to repair your engine before it fails, by performing an in-frame overhaul at a cost of U.S. $3700, the repair cost will only be U.S. $0.007 cents per mile (km).The difference between the repair before failure cost and the after failure cost is the result of damage to other engine parts when a major failure occurs. This is money that could have been used more profitably elsewhere.By not performing an overhaul, you risk the chance of seizing a piston, breaking a rod, fatiguing a bearing or causing other severe damage to your engine. The cost to repair this damage could range from U.S. $5000 to $9000 and the amount of downtime encountered would exceed the amount of downtime required for a scheduled in-frame overhaul.Consider the alternatives: Spend U.S. $3700 to overhaul your engine, with minimal downtime, before failure or spend U.S. $5000 to $9000 in repairs, with several days of unscheduled downtime, after the engine fails.It is evident by this example, that overhauling your engine before failure is far less costly than the cost to overhaul your engine after failure.To further stress the importance of overhauling your engine before failure, an Engine Operating Cost Analysis was made to show the cost per mile (km) graphically. Also refer to topic, Engine Operating Cost Analysis, in this publication for additional information. These graphs do not include the total downtime, lost contract, towing, replacement vehicle and related costs associated with after failure repairs. Legend Dotted Line - The cost per mile (km) for a truck that is not maintained and overhauled as recommended. Solid Line - The cost per mile (km) for a truck that is maintained and overhauled before failure.As you can see, the cost per mile (km) for a truck that is not maintained and overhauled as recommended will ultimately cost you more to operate than a truck that is maintained and overhauled before failure. Caterpillar