How to Change Engine Oil Filter for Caterpillar 950F Excavator

This instruction show you guide on how to change engine filter for Caterpillar 950F excavator

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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing,adjusting and repair of the product. Be prepared to
collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, “Caterpillar Tools and Shop Products Guide” for tools and supplies suitable to collect and contain fluids on Caterpillar
products.
Dispose of all fluids according to local regulations and mandates.
1. Open the access door that is located on the left side of the machine.

2. Remove the filter element (1) with a strap type wrench. Inspect the filter.
Reference: Refer to Operation and Maintenance Manual, “Oil Filter - Inspect”.

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3. Clean the filter mounting base with a clean cloth.Make sure that the used filter gasket has beencompletely removed.
4. Apply a thin film of clean engine oil to the sealing surface of the new filter element.
5. Install the new filter element by hand. When the gasket contacts the filter base, tighten the filter by an additional 3/4 turn.
6. Open the crankcase drain valve (2). Allow the oil to drain into a suitable container. Close the crankcase drain valve.
7. Open the access door that is located on the right side of the machine. Remove oil filler plug (3).
Fill the crankcase with new oil.
Reference: Refer to Operation and Maintenance Manual, “Lubricant Viscosities” and Operation and Maintenance Manual, “Capacities (Refill)”.
8. Clean the oil filler plug and install the oil filler plug.
9. Start the engine and allow the oil to warm. Check for leaks.
10. Check the engine oil level in dipstick (4).
Reference: Refer to Operation and Maintenance Manual, “Engine Oil Level - Check” for the
correct procedure.
11. Stop the engine. Close the engine access doors.

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How to Repalce Cooling System Water Temperature Regulator for Caterpillar C11 Engine

This instruction show you guide on how to Repalce Cooling System Water temperature Regulator for Caterpillar C11 Engine.

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Replace the water temperature regulator before the water temperature regulator fails. This is a recommended preventive maintenance practice.

Replacing the Caterpillar water temperature regulator reduces the chances for unscheduled downtime.

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A water temperature regulator that fails in a partially opened position can cause overheating or overcooling of the engine.

A water temperature regulator that fails in the closed position can cause excessive overheating. Excessive overheating could result in cracking of the cylinder head or piston seizure problems.

A water temperature regulator that fails in the open position will cause the engine operating temperature to be too low during partial load operation. Low engine operating temperatures during partial loads could cause an excessive carbon buildup inside the cylinders. This excessive carbon buildup could result in an accelerated wear of the piston rings and wear of the cylinder liner

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Failure to replace your Caterpillar water temperature regulator on a regularly scheduled basis could cause severe engine damage.
Caterpillar engines incorporate a shunt design cooling system and require operating the engine with a water temperature regulator installed.
If the water temperature regulator is installed incorrectly, the engine may overheat, causing cylinder head damage. Ensure that the new water temperature regulator is installed in the original position. Ensure that the water temperature regulator vent hole is open.
Do not use liquid gasket material on the gasket or cylinder head surface.
Refer to the Service Manual for the replacement procedure of the water temperature regulator, or consult your Caterpillar dealer.
Note: If only the water temperature regulators are replaced, drain the coolant from the cooling system to a level that is below the water temperature regulator housing.

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