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GENERATOR AS 2277923 - Caterpillar



2277923 GENERATOR AS Caterpillar parts GENERATOR
Rating:
71
Alternative (cross code) number:
CA2277923
227-7923
2277923
Caterpillar 2277923 GENERATOR AS

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Measure the valve lash with the engine stopped. To obtain an accurate measurement, allow at least 20 minutes for the valves to cool to engine cylinder head and block temperature.
Adjust the valve clearance to within 0.08 mm (.003 in) of the nominal valve clearance setting given. Refer to the Service Manual or your Caterpillar dealer for the complete valve adjustment procedure.After setting all valve clearances and before installing the valve cover, see "Engine Valve Rotators".Engine Valve Rotators
Observe Rotation of Valves With Engine Idling After Setting the Valve Clearances
When inspecting the valve rotators, protective glasses or face shield and protective clothing must be worn, to prevent being burned by hot oil spray.
1. Start the engine, and keep the engine at LOW IDLE position. 2. Watch the top surface on each valve rotator. Each valve rotator should turn slightly each time the valve closes. If a valve fails to rotate, contact your Caterpillar dealer.Cooling System (Engine and Aftercooler)
Drain Cooling System
At operating temperature, the engine coolant is hot and under pressure.Steam can cause personal injury.Check the coolant level only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand.Remove the fill cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.
The machine must be level, the engine stopped, cool and the parking brake applied. 1. Remove the engine cooling system radiator caps and the aftercooler filler cap slowly to relieve the pressure. 2. Open the radiator and aftercooler drain valves. When the radiator and aftercooler drain valves are opened, this will drain both systems. (Open one drain valve and that system will drain, while the other will remain partially full.)3. Close the radiator and aftercooler drain valves.Cleaning the Cooling System
1. Be sure the drain valves are closed. Fill the engine radiator and aftercooler with cleaning solution. Use 1 kilogram (2 lb) sodium bisulfate per 40 liters (10 gal) of water.2. Start and run engine for 1/2 hour. Stop engine and drain cleaning solution.3. Flush system with clean water until draining water is clean. Do not run engine while flushing.4. Close drain valves. Fill system with neutralizer. Use a commercially available neutralizer or mix 250 g of sodium carbonate crystals per 40 liters of water (1/2 lb. per 10 gal).5. Start and run engine for 10 minutes. Stop engine and drain neutralizing solution.6. Flush system with clean water, until draining water is clean. Do not run engine while flushing.7. Close drain valves.Clean the Cooling System Relief Valve
Clean or replace the relief valve if the system overheats or loss of coolant is observed. There are two valves to be cleaned. One on top of the aftercooler radiator and one on the engine coolant radiator.1. Unlatch and open the hood to gain access to the valve.2. Remove the bolts from the valve and remove the valve assembly. 3. Inspect valve (1), valve seal (2) and gasket (3). Replace the valve assembly, gasket and seals if


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