0322689 JOHNSON COVER,Exh.inner,115 HP

Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
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 proper draining of the waste particles that are suspended in the oil.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. Note: Drain the oil into a suitable container. Dispose of the oil according to local regulations.
Open the oil drain. After the oil has drained, close the oil drain.
If a suction device is inserted into the oil pan, ensure that the suction device is clean. This will prevent dirt from entering into the oil pan. Be careful not to strike the engine oil suction tubes or the piston cooling jets.
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.
If the oil drain valve has a quick-connect coupling, attach the coupling. Open the drain valve in order to drain the crankcase. After the oil has drained, close the drain valve. Disconnect the coupling.
Replace the engine oil filter elements before filling the crankcase with new oil. Replace the Oil Filter Elements
Replace the engine oil filters when either of the following conditions occur:
Every oil change
The engine oil filter differential pressure reaches 103 kPa (15 psi).
The oil filter elements have been used for 1000 service hours.Note: Do not attempt to clean the used oil filters. Used oil filters will retain waste particles. The used oil filters would not filter the oil properly.Service tools are available to aid in the service of oil filters. Consult your Caterpillar 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.Replacing the Engine Oil Filters With the Engine Stopped
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
Perform the following procedure after the oil has been drained.Note: Use this procedure if the engine oil filters do not have a control valve.
Illustration 1 g00799719
(1) Bolts
(2) Cover
(3) Plug
(4) Drain valve
(5) Drain Note: Drain the oil into a suitable container. Dispose of the oil according to local regulations.
Connect a hose to drain (5). Place the other end of the hose into a suitable container in order to collect the oil.
Open drain valve (4). 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 (2) 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 (1). Before removing the bolts, pry the cover (2) loose or tap the cover with a rubber mallet in order to relieve any spring pressure. Remove cover (2).
Illustration 2 g00799721
Section view of the engine oil filter
(2) Cover
(6) O-ring seal
(7) Spring
(8) Retainer
(9) Oil filter element
Remove cover (2) and spring (7). Remove O-ring seal (6), retainer (8), and oil filter elements (9).
Clean cover (2), 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 (2). Ensure that the retainer and the spring are properly seated between the oil filter elements and the cover.
Start the engine according to this Operation and Maintenance Manual, "Starting The Engine" procedure (Operation Section). Check for oil leaks. Replacing the Engine Oil Filters During Engine Operation
The duplex oil filters enable the engine oil filter elements to be changed while the engine is operation. This is useful if the oil filter elements require more frequent replacement than the engine oil.
Filter contains hot pressurized fluid when engine is running.Follow instructions on control valve to avoid personal injury.If rapid air movement exists to blow fluid, Stop the engine to avoid fire.
Illustration 3 g00633941
Control valve for the duplex oil filters
Move the control valve to the "AUX RUN" position in order to change the main oil filter elements