SPT342 Truck Mounted Pumper Caterpillar

Use only clean water to flush the cooling system when Extended Life Coolant (ELC) is drained and replaced.

Drain the Cooling System

1. Stop the engine and allow the engine to cool. Ensure that the engine will not start when the cooling system is drained.

Show/hide table



Illustration 1	g00824061
Filler cap

2. Loosen the cooling system filler cap (1) slowly in order to relieve any pressure. Remove the cooling system filler cap.

Show/hide table



Illustration 2	g00824090
Locations of the drain plugs (2) Transmission oil cooler (3) Cylinder block

3. Remove drain plugs (2) and (3). Allow the coolant to drain.

Show/hide table



Illustration 3	g00824084
Location of the drain plug and drain valve for the radiator

4. Remove drain plug (4) that is for the radiator.

Show/hide table



Illustration 4	g00824094
Radiator drain valve

5. Remove the lockwire from radiator drain valve (5). Open the radiator drain valve. Allow the coolant to drain.

Show/hide table

NOTICE
Dispose of used engine coolant properly or recycle. Various methods have been proposed to reclaim used coolant for reuse in engine cooling systems. The full distillation procedure is the only method acceptable by Caterpillar to reclaim the used coolant.

For information regarding the disposal and the recycling of used coolant, consult your Caterpillar dealer or consult Caterpillar Service Technology Group:

Outside Illinois: 1-800-542-TOOLInside Illinois: 1-800-541-TOOLCanada: 1-800-523-TOOL

Clean the Cooling System

1. After the cooling system has been drained, flush the cooling system with clean water in order to remove any debris.

2. Close the radiator drain valve. Clean the drain plugs and install the drain plugs.

Show/hide table

NOTICE
Fill the cooling system no faster than 19 L (5 US gal) per minute to avoid air locks.

3. Fill the cooling system with clean water. Install the cooling system filler cap. Start the engine. Operate the engine until the temperature reaches 49 °C (120 °F) to 66 °C (150 °F).

4. Stop the engine and allow the engine to cool. Loosen the cooling system filler cap slowly in order to relieve any pressure. Remove the cooling system filler cap. Remove drain plugs (2), (3) and (4). Refer to Illustrations 2 and 3. Open the radiator drain valve. Allow the water to drain.

5. Flush the cooling system with clean water until the water that drains is clean. Close the radiator drain valve. Clean the drain plugs and install the drain plugs.

6. Fill the cooling system with clean water. Install the cooling system filler cap. Start the engine. Operate the engine until the temperature reaches 49 °C (120 °F) to 66 °C (150 °F).

7. Stop the engine and allow the engine to cool. Loosen the cooling system filler cap slowly in order to relieve any pressure. Remove the cooling system filler cap. Remove drain plugs (2), (3) and (4). Refer to Illustrations 2 and 3. Open the radiator drain valve. Allow the water to drain.

8. Flush the cooling system with clean water until the water that drains is clean. Close the radiator drain valve. Install a new lockwire on the radiator drain valve. Clean the drain plugs and install the drain plugs.

Fill the Cooling System

Show/hide table

NOTICE
Fill the cooling system no faster than 19 L (5 US gal) per minute to avoid air locks.

1. Fill the cooling system with Extended Life Coolant (ELC). See the Operation and Maintenance Manual, "Refill Capacities" for the correct cooling system capacity. Do not install the cooling system filler cap.

2. Start the engine. Operate the engine in order to purge the air from the cavities of the engine block. Allow the ELC to warm and allow the coolant level to stabilize. Stop the engine.

3. Check the coolant level. Maintain the coolant to the proper level on the sight gauge (if equipped). If a sight gauge is not equipped, maintain the coolant within 13 mm (0.5 inch) below the bottom of the filler pipe.

4. Clean the cooling system filler cap. Inspect the gaskets of the cooling system filler cap. If the gaskets of the cooling system filler cap are damaged, discard the old cooling system filler cap and install a new cooling system filler cap. If the gaskets of the cooling system filler cap are not damaged, use a 9S-8140 Pressurizing Pump in order to pressure test the cooling system filler cap. The correct pressure is stamped on the face of the cooling system filler cap. If the cooling system filler cap does not maintain the correct pressure, install a new cooling system filler cap.

5. Start the engine. Inspect the cooling system for leaks and for proper operating temperature.