3516C Generator Sets Caterpillar

Engine Oil and Filter - Change

Usage:

3516C SCJ

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Hot oil and components can cause personal injury.

Do not allow hot oil or components to contact skin.

The oil change interval will be affected by the following items:

Air/fuel ratio
Ambient air conditions
Engine application
Fuel type
Oil type
Size of the oil sump

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Table 1
3500 Engine Oil Change Intervals
Sump	Interval
Standard/Shallow	500 service hours
Deep	1000 service hours

The S·O·S oil analysis program analyzes used oil in order to determine if the oil change interval is suitable for your specific engine.

Drain the Oil

Do not drain the oil when the engine is cold. As the oil cools, suspended waste particles settle on the bottom of the oil pan. The waste particles are not removed when the cold oil is drained. Drain the crankcase when the oil is 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 allow the waste particles to be recirculated through the engine lubrication system with the new oil.

After the engine has been operated at normal operating temperature, STOP the engine.

Drain the oil according to the equipment on the engine.
1. Open oil drain (1). After the oil has drained, close the oil drain.
1. If a suction device is inserted into the oil pan, ensure that the suction device is clean. This cleanliness will prevent dirt from entering into the oil pan. Be careful not to strike the engine oil suction tubes or the piston cooling jets.
1. If a suction device that attaches to the oil drain is used, ensure that the suction device is clean. Attach the suction device to the oil drain. Open the oil drain. After the oil has drained, close the oil drain and remove the suction device.

Replace the Oil Filter Elements

Replace the engine oil filters when either of the following conditions are met:

Every oil change
The engine oil filter differential pressure reaches 103 kPa (15 psi).

Service tools are available to aid in the service of oil filters. Consult your Cat dealer for the part names and the part numbers. Follow the instructions that are supplied with the service tools. If the service tools are not used, perform the following appropriate procedure.

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Illustration 2	g02620286
(1) Drain (2) Drain valve (3) Plug (4) Bolts (5) Cover

Note: Drain the oil into a suitable container. Dispose of the oil according to local regulations.

Connect a hose to drain (1). Place the other end of the hose into a suitable container in order to collect the oil.

Open drain valve (2). Remove plug (3). Allow the oil to drain. Clean the plug and install the plug. Close the drain valve. Remove the hose from the drain.

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Personal injury can result from parts and/or covers under spring pressure.
Spring force will be released when covers are removed.

Be prepared to hold spring loaded covers as the bolts are loosened.

Note: Some oil will remain in the housing after the oil has been drained. This oil will pour out of the housing when cover (5) is removed. Prepare to catch the oil in a suitable container. Clean up any spilled oil with rags. DO NOT use absorbent particles to clean up the oil.

Be alert to the spring force. Gradually loosen but do not remove bolts (4). Before removing bolts (4), pry the cover (5) loose in order to relieve any spring pressure. Remove cover (5). Remove the O-ring seal on the inside of the cover.

Clean cover (5) and clean the O-ring seal. Clean the inside of the oil filter housing.

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NOTICE

Caterpillar oil filters are built to Caterpillar specifications. Use of an oil filter not recommended by Caterpillar could result in severe engine damage to the engine bearings, crankshaft, etc., as a result of the larger waste particles from unfiltered oil entering the engine lubricating system. Only use oil filters recommended by Caterpillar.

Install new oil filter elements.

Inspect the O-ring seal. Ensure that the surfaces for the O-ring seal are clean. Install a new O-ring seal if the old O-ring seal is damaged or deteriorated.

Install cover (5). Ensure that the springs are seated properly between the cover and the oil filter elements.

Inspect the Used Oil Filter Elements

Cut the used oil filter element open with a utility knife. Remove the metal wrap. Cut the filter element free from the end caps. Spread apart the pleats and inspect the element for metal debris. An excessive amount of debris in the element 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 element. Ferrous metals may indicate wear on the steel and the cast iron parts of the engine. Nonferrous metals may indicate wear on the aluminum parts, the brass parts, or the bronze parts of the engine. Parts that may be affected include the following components: main bearings, rod bearings, turbocharger bearings and cylinder heads.

Due to normal wear and friction, finding small amounts of debris in the oil filter element is not uncommon. If an excessive amount of debris is found in the oil filter element, consult your Cat dealer in order to arrange for further oil analysis.

Fill the Crankcase

Remove the oil filler cap. Fill the crankcase through the oil filler tube only. For the correct type of oil to use, refer to this Operation and Maintenance Manual (Maintenance Section), "Fluid Recommendations". For the oil capacity, refer to this Operation and Maintenance Manual (Maintenance Section), "Refill Capacities". Clean the oil filler cap. Install the oil filler cap.

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NOTICE

To prevent crankshaft or bearing damage, crank engine with fuel off to fill all filters before starting. Do Not crank engine for more than 30 seconds.

Close the fuel supply line and crank the engine until the oil pressure gauge indicates 70 kPa (10 psi). Open the fuel supply line. Allow the starting motor to cool for 2 minutes before cranking again.

Follow the Operation and Maintenance Manual (Operation Section), "Starting The Engine" procedure. Operate the engine at low idle for 2 minutes. This operation will ensure that the lubrication system has oil and that the oil filters are filled with oil. Inspect the engine for oil leaks. Ensure that the oil level is at the "FULL" mark on the "LOW IDLE" side of the oil level gauge.