BODY & CANOPY AS 2589459 - Caterpillar

Removal Procedure
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 filler cap is cool enough to touch with the bare hand.Remove the filler cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with skin and eyes to prevent personal injury.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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.
Drain the coolant level below the water temperature regulator.
Illustration 1 g00609693
Loosen hose clamp (1) and disconnect hose (2) from cover (4) of the water temperature regulator.
Remove two bolts (3) and the washers from cover (4) of the water temperature regulator.
Separate cover (4) from elbow (5) .
Remove bolts (6). Separate elbow (5) from the water outlet manifold.
Remove water temperature regulator (8) (not shown) from cover (4) .
Remove gasket (7) (not shown) and gasket (9) (not shown) from the mounting surfaces of cover (4) and elbow (5) .
Use the following procedure in order to test the water temperature regulator:
Put the water temperature regulator in a tub of water. Heat the water in order to test the water temperature regulator for thermostatic action.Note: Stir the water in the tub in order to maintain even temperature during the test.
When the valve of the water temperature regulator lifts more than 10 mm (0.4 inch), measure the water temperature.Note: The opening temperature for the water temperature regulator is 71° 2°C (160° 3.6°F).
If the valve fails to operate properly, replace the water temperature regulator.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean all of the mounting surfaces for the gaskets and remove all gasket material.
If the water temperature regulator is installed incorrectly, it will cause the engine to overheat.
Illustration 2 g00609693
Install water temperature regulator (8) (not shown) into elbow (5) .Note: When the water temperature regulator is installed, ensure that the hole for the air vent is up.
Install gasket (7) (not shown) and gasket (9) (not shown).Note: Check the condition of the gaskets. If the gaskets are worn or damaged, use 8T-9013 Silicone Sealant for replacement.
Install the bolts (6) in order to secure elbow (5) to the water outlet manifold.
Install cover (4) for the water regulator housing.
Install the washers and two bolts (3) in order to secure cover (4) of the water regulator housing.
Reconnect hose (2) and tighten hose clamp (1) onto cover (4) of the water regulator housing.
Fill the cooling system to the correct level. Refer to the Operation and Maintenance Manual for the correct fluid and the correct filling procedure.