0382573 JOHNSON GEARCASE ASSY.,Upper and lower

Scheduled Oil Sampling (S O S)
Obtain Sample
To compliment a good preventive maintenance program, Caterpillar recommends using S O S at regular scheduled intervals to monitor the condition and maintenance requirements of your engine. Each oil sample should be taken when the oil is warm and well mixed to ensure that the sample is representative of the oil in the compartment.There are several methods used to obtain S O S samples.* Use a sampling gun inserted into the sump.* Use a valve installed for samples.* Use the drain stream when changing oil.Caterpillar recommends using the first or second method. If these methods are not feasible, then use the drain stream. When using the drain stream to obtain the oil sample, do not sample from the first or final draining. The oil at the beginning or end of the drain stream is not mixed well enough to be representative of the oil in the crankcase. Consult your Caterpillar dealer for complete information and assistance in establishing an S O S program for your engine.Engine Oil and Filter
Replace Oil and Filter
Use the chart below to establish the oil and filter change interval based on the engine oil sump capacity, minimum API oil classification and diesel fuel sulfur content of 0.5% or less. This chart establishes the basis for the oil change interval only which affects the following: * S O S sampling* engine oil change* oil filters* initial valve lash adjustmentAll other items are to be performed at 250 Service Hours.Drain the crankcase with the oil warm and the engine stopped to allow for the draining of waste particles that are suspended in the oil. As the oil cools, suspended waste particles will settle on the bottom of the crankcase and will not be removed with the draining oil.Failure to follow this recommended procedure would result in these waste particles being recirculated through your engine lubrication system with the new oil. 1. Remove the crankcase drain plug, open the crankcase drain valve and allow the oil to drain.2. Install the crankcase drain plug and tighten it to 70 14 N m (50 10 lb ft), or close the crankcase drain valve. 3. Use a 2P8250 Filter Wrench to remove the oil filter. Element with debris.4. Use a 4c5084 Service Tool to cut the oil filter element open. Spread pleats apart and inspect the element for metal debris. An excessive amount of debris in the oil filter element may be indicative of a pending failure.Use a magnet to differentiate between the ferrous and non-ferrous metals found in your oil filter element.Ferrous metals may indicate wear on the steel and cast iron parts of your engine.Non-ferrous metals may indicate wear on the aluminum parts of your engine, such as main and rod or turbocharger bearings.Due to normal wear, friction, etc., it is not uncommon to find small amounts of debris in your oil filter element. Consult your Caterpillar dealer to arrange for further analysis if an excessive amount of debris is found in your oil filter element.5. Wipe the sealing surface of the filter element mounting base. Make sure all of the old gasket is removed. Make sure to use the correct Caterpillar oil filter element for your engine arrangement.Your Caterpillar oil filter element was built to Caterpillar specifications to ensure you receive a quality part at a competitive price. Caterpillar oil filter elements are inspected as part of an inspection program that was developed to ensure compliance with established quality standards.Caterpillar is constantly testing oil filter elements for the purpose of modifying and/or incorporating the latest technological advancements into current filter designs.Failure to use a Caterpillar oil filter element as recommended could result in the use of an interior product. Some non-Caterpillar oil filters do not have a sufficient micron rating. This allows larger debris particles to pass unfiltered into the engine.Some non-Caterpillar oil filters consist of inferior material that can split at the seams and allow unfiltered oil into the engine. The bonding between the filter material and filter end cap on some non-Caterpillar oil filters is inadequate and therefore, upon failure, will allow unfiltered oil into the engine.Use of an oil filter element not recommended by Caterpillar could result in severe engine damage to your engine bearings, crankshaft, etc., as a result of the larger debris particles or unfiltered oil entering your engine. 6. Apply a small amount of clean engine oil to the new filter element gasket.7. Install the new filter element by hand until the gasket contacts the base. Tighten the filter 3/4 of a turn more. Do not overtighten. Refer to the "Refill Capacities" section to show the proper amount of oil to be used at oil change time. 8. Remove the oil fill cap and fill the crankcase. See "Refill Capacities."
Do Not Overfill to reach above or to the top of the FULL mark on the dipstick.
9. Before starting the engine, ensure your oil level is between the correct position in the FULL and the ADD marks on the dipstick.10. Start and run the engine at low idle for several minutes. Inspect for oil leaks. Stop the engine. 11. Wait 10 minutes to allow the oil to drain back into the crankcase. Maintain the oil level to the FULL mark on the dipstick.Cooling System
Test/Add Coolant Additive
To prevent engine damage, never add coolant to an overheated engine. Allow the engine to cool first.Clean the cooling system before the recommended service interval of 4000 service hours if:* It is heavily contaminated* The engine overheats* Foaming is observed in the radiator* The oil cooler has failed allowing oil in the coolant
Do not add coolant additive until you have read and understand the material in the "Cooling System Specifications" section.
Liquid Supplemental Coolant Additive
1. Loosen the filler cap slowly to relieve pressure and remove the cap.2. Use the 8T5296 Supplemental Coolant Additive Test Kit to check for concentration.3. It may be necessary to drain enough coolant from the radiator to allow for the addition of the liquid cooling system