ENGINE AR- 4P4922 - Caterpillar

Removal Procedure
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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.
Drain the engine coolant into a suitable container for storage or for disposal. Drain the coolant to a level that is below the water temperature regulator. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct procedure.
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Loosen clamp (2) and disconnect hose (1) from cover (3) .
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Remove bolts (4) .
Remove cover (3) .
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Remove water temperature regulator (5) and gasket (6) .Installation Procedure
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Install a new gasket (6). Install water temperature regulator (5) .
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Position cover (3) .
Install bolt (4) .
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Connect hose (1) to cover (3) .
Tighten clamp (2) .
Fill the cooling system to the correct level. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change"and Operation and Maintenance Manual, "Capacities (Refill)".