321B LCR Excavator Caterpillar

Engine Oil and Filter - Change

Usage:

321B 9CZ

Note: If the sulfur content in the fuel is greater than 1.5% by weight, use an oil that has a TBN of 30 and reduce the oil change interval by one-half.

Park the machine on a level surface and engage the parking brake. Stop the engine.

Note: Drain the crankcase while the oil is warm. This allows waste particles that are suspended in the oil to drain. As the oil cools, the waste particles will settle to the bottom of the crankcase. The particles will not be removed by draining the oil and the particles will recirculate in the engine lubrication system with the new oil.

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Illustration 1	g00101627

The drain valve for the engine crankcase oil is located under the rear of the upper structure.

Note: Refer to Operation and Maintenance Manual, "General Hazard Information" for information on Containing Fluid Spillage.

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Illustration 2	g00107915

Open the crankcase drain valve. Allow the oil to drain into a suitable container.
Note: Discard any drained fluids according to local regulations.

Close the drain valve.

Open the engine hood.

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Illustration 3	g00873197
(1) Engine oil filter (2) Drain valve (3) Firewall

Remove firewall (3) .

Open drain valve (2). The drain valve is located on the bottom of engine oil filter (1). Allow the remaining oil in the filter to drain into a suitable container.

Close drain valve (2) .

Remove oil filter (1). See Operation and Maintenance Manual, "Oil Filter - Inspect". Discard the used oil filter properly.

Clean the filter housing base. Make sure that all of the former filter gasket is removed.

Apply a thin coat of engine oil to the gasket of the new filter.

Install the new filter by hand. When the gasket contacts the filter base, turn the filter by 3/4 of a turn more. This will tighten the filter sufficiently.

Replace firewall (3) .

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Illustration 4	g00873216
(4) Dipstick (5) Oil filler plug

Remove oil filler plug (5). Fill the crankcase with new oil. See Operation and Maintenance Manual, "Capacities (Refill)" and Operation and Maintenance Manual, "Lubricant Viscosities". Clean the oil filler plug and install the oil filler plug.

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NOTICE

Do not under fill or overfill engine crankcase with oil. Either condition can cause engine damage.

Start the engine and allow the oil to warm. Check the engine for leaks. Stop the engine.

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Illustration 5	g00104116

Wait for 30 minutes in order to allow the oil to drain back into the crankcase. Check the oil level with dipstick (4). Maintain the oil between the "H" and "L" marks on the dipstick. If necessary, add oil.