BOLT 3991147 - Caterpillar

Illustration 1 g00736657
(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. 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 absorbent towels or pillows. DO NOT use absorbent particles to clean up the oil.
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.
Be alert to the spring force. Gradually loosen but do not remove bolts (4). Before removing the bolts, pry the cover (5) loose or tap the cover with a rubber mallet in order to relieve any spring pressure. Remove cover (5).
Illustration 2 g00739051
Section view of the engine oil filter
(5) Cover
(6) O-ring seal
(7) Spring
(8) Retainer
(9) Oil filter element
Remove cover (5) and spring (7). Remove O-ring seal (6), retainer (8), and oil filter elements (9).
Clean cover (5), spring (7), O-ring seal (6), and retainer (8). Clean the inside of the oil filter housing.
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.
Ensure that the new oil filter elements are in good condition. Install the 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 retainer (8), spring (7) and cover (5). Ensure that the retainer and the spring are properly seated between the oil filter elements and the cover.
Fill the crankcase with new oil. See "Fill the Crankcase".
Start the engine according to this Operation and Maintenance Manual, "Starting The Engine" procedure (Operation Section). Check for oil leaks. Fill the Crankcase
Only use oils that are recommended by Caterpillar. For the proper oil to use, refer to this Operation and Maintenance Manual, "Refill Capacities and Recommendations" topic (Maintenance Section).
If the engine is equipped with an auxiliary oil filter system, extra oil must be added when filling the crankcase. If equipped with an auxiliary oil filter system that is not supplied by Caterpillar, follow the recommendations of the OEM.
Engine damage can occur if the crankcase is filled above the "FULL" mark on the oil level gauge (dipstick).An overfull crankcase can cause the crankshaft to dip into the oil. This will reduce the power