C3.4B Industrial Engine Caterpillar

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Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.

The engine oil service reset procedure must be completed after the engine oil, and filter have been changed. Refer to "Engine Oil Service Reset" for more information.

Do not drain the engine lubricating oil when the engine is cold. As the engine lubricating oil cools, suspended waste particles settle on the bottom of the oil pan. The waste particles are not removed with draining cold oil. Drain the oil pan with the engine stopped. Drain the oil pan with the oil warm. This draining method allows the waste particles that are suspended in the oil to be drained properly.

Failure to follow this recommended procedure will cause the waste particles to be recirculated through the engine lubrication system with the new oil.

Drain the Engine Lubricating Oil

Note: Ensure that the vessel that will be used is large enough to collect the waste oil.

After the engine has been run at the normal operating temperature, stop the engine. Use one of the following methods to drain the engine oil pan:

Illustration 1	g02519103

• If the engine is equipped with a drain valve, turn the drain valve knob counterclockwise to drain the oil. After the oil has drained, turn the drain valve knob clockwise to close the drain valve.

• If the engine is not equipped with a drain valve, remove oil drain plug (1) to allow the oil to drain. If the engine is equipped with a shallow oil pan, remove the bottom oil drain plugs from both ends of the oil pan.

After the oil has drained, the oil drain plugs should be cleaned and installed. If necessary, replace the O ring seal. Tighten the drain plug securely.

Replace the Oil Filter

1. Remove the oil filter.

   Note: The following actions can be carried out as part of the preventive maintenance program.

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   Illustration 2	g01999595
   Element with debris

2. Cut the oil filter open with a 175-7546 Oil Filter Cutter. Break apart the pleats and inspect the oil filter for metal debris. An excessive amount of metal debris in the oil filter may indicate early wear or a pending failure.

   Use a magnet to differentiate between the ferrous metals and the nonferrous metals that are found in the oil filter element. Ferrous metals may indicate wear on the steel and cast iron parts of the engine.

   Nonferrous metals may indicate wear on the aluminum parts, brass parts, or bronze parts of the engine. Parts that may be affected include the following items: main bearings, rod bearings, turbocharger bearings, and cylinder heads.

   Due to normal wear and friction, small amounts of debris is not uncommon to be found in the oil filter. Consult your Cat dealer to arrange for a further analysis if an excessive amount of debris is found in the oil filter.

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   Illustration 3	g02516777
   Typical example

3. Clean the sealing surface of the oil filter base (2).

4. Apply clean engine oil to the O ring seal (3) for the new oil filter.
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   NOTICE
   Do not fill the oil filters with oil before installing them. This oil would not be filtered and could be contaminated. Contaminated oil can cause accelerated wear to engine components or engine damage.

5. Install the engine oil filter, spin on the oil filter until the O ring seal contacts the oil filter base. Then, rotate the oil filter ¾ of a full turn, by hand only.

Vertically Up Oil Filter

Illustration 4	g02596778
(4) Vertically up oil filter

Some oil filters may be installed vertically up. Use the same procedure to replace the oil filter. Ensure that all the oil has drained from the filter before removal.

Fill the Oil Pan

1. Remove the oil filler cap. Refer to this Operation and Maintenance Manual, "Fluid Recommendations" for more information on suitable oils. Fill the oil pan with the correct amount of new engine lubricating oil. Refer to this Operation and Maintenance Manual, "Refill Capacities" for more information on refill capacities.
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   NOTICE
   If equipped with an auxiliary oil filter system or a remote filter system, follow the OEM or the filter manufactures recommendations. Under filling or over filling the crankcase with oil can cause engine damage.

2. Start the engine and run the engine at "LOW IDLE" for 2 minutes. Perform this procedure to ensure that the lubrication system has oil and that the oil filters are filled. Inspect the oil filter for oil leaks.

3. Stop the engine and allow the oil to drain back to the oil pan for a minimum of 10 minutes.
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   Illustration 5	g02832442
   Typical example

4. Remove the engine oil level gauge to check the oil level. Maintain the oil level between the MIN mark and MAX mark on the engine oil level gauge. Do not fill the crankcase above the MAX mark.

Engine Oil Service Reset

The low oil warning lamp has two functions. The lamp on solid will indicate that the engine has low oil pressure. The lamp flashing will indicate the engine oil and filter MUST be changed and the engine oil service reset MUST be completed. The lamp will only flash with the key in the ON position, with the engine in operation the lamp will be extinguished.

Note: If the engine oil and filter have been changed before the warning lamp has started to flash, the engine oil service reset procedure MUST still be completed.

Some applications may have other methods to perform an engine oil service reset. For assistance with the engine oil service reset contact your Cat dealer, or your OEM.

Use one of the following procedures after the engine oil and filter have been changed to reset the flashing warning lamp:

Throttle Control Option

Note: Some application the maximum throttle position can before the throttle peddle has reached the stop. The actual maximum position of the throttle must be known before starting the procedure. With the known maximum position the middle position of the throttle can be calculated. The throttle must be positioned in the required positions for the prescribed period in order to perform an engine oil service reset.

1. With the engine stopped. Turn the keyswitch to the ON position, and wait 15 seconds, but not more than 20 seconds. Go to step 2.

2. Move the throttle to the maximum position for more than 15 seconds, but less than 20 seconds.

3. Return throttle to zero position for more than 15 seconds, but less than 20 seconds.

4. Move the throttle to the maximum position for more than 15 seconds, but less than 20 seconds.

5. Return throttle to zero position for more than 15 seconds, but less than 20 seconds.

6. Move the throttle to the middle position for more than 15 seconds, but less than 20 seconds. Return the throttle to zero position. The engine oil service reset procedure is complete.

7. On completion of the sequence, the warning lamp will flash three times. Each flash will be for 1 second with a 1 second interval. This sequence of flashes indicates that the warning lamp has been reset and the engine can be started and operated normally.

8. Turn the keyswitch to the OFF position.

9. If the procedure has been interrupted before completion, turn the power off for 20 seconds before starting again.

Multi-State Switch Option

1. Turn the keyswitch to the ON position, and wait 15 seconds, but not more than 20 seconds. Go to step 2.

2. Turn the multi-state switch to position 1 for more than 15 seconds, but less than 20 seconds.

3. Return the multi-state switch to position 0 for more than 15 seconds, but less than 20 seconds.

4. Turn the multi-state switch to position 1 for more than 15 seconds, but less than 20 seconds.

5. Return the multi-state switch to position 0 for more than 15 seconds, but less than 20 seconds

6. Turn the multi-state switch to position 1 for more than 15 seconds, but less than 20 seconds. Return the multi-state switch to position 0. The engine oil service reset procedure is complete.

7. On completion of the sequence, the warning lamp will flash three times. Each flash will be for 1 second with a 1 second interval. This sequence of flashes indicates that the warning lamp has been reset and the engine can be started and operated normally.

8. Turn the keyswitch to the OFF position.

9. If the procedure has been interrupted before completion, turn the power off for 20 seconds before starting again.

Electronic Technician (ET)

ET can be used to reset the oil service indicator. Connect ET and use the menu to reset the oil service reset procedure.