MOUNT AS 2W9710 - Caterpillar

Clean the cooling system and flush the cooling system before the recommended maintenance interval if the following conditions exist:
The engine overheats frequently.
Foaming is observed.
The oil has entered the cooling system and the coolant is contaminated.
The fuel has entered the cooling system and the coolant is contaminated.Note: When the cooling system is cleaned, only clean water is needed when the ELC is drained and replaced.Note: Inspect the water pump and the water temperature regulator after the cooling system has been drained. This is a good opportunity to replace the water pump, the water temperature regulator, and the hoses, if necessary. Drain
Pressurized System: Hot coolant can cause serious burns. To open the cooling system filler cap, stop the engine and wait until the cooling system components are cool. Loosen the cooling system pressure cap slowly in order to relieve the pressure.
Note: The engine can auto start. Ensure that the power supply is isolated before any service or repair is performed.
Stop the engine and allow the engine to cool. Turn isolator keyswitch to the OFF position.
Loosen the cooling system filler cap slowly in order to relieve any pressure. Remove the cooling system filler cap.
Open the cooling system drain valve . If the cooling system is not equipped with a drain valve, remove the cooling system drain plugs. Note: Drain the engine coolant from the following positions. Rear of the engine block, Bottom of the heat exchanger and the underside of the exhaust manifold. The exhaust manifold may have two drains. The exhaust manifold that is installed on an engine that has a MCS control panel will only have one drain. Allow the coolant to drain.
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 Dealer Service Tools.Flush
Flush the cooling system with clean water in order to remove any debris.
Close the drain valve. Clean the drain plugs. Install the drain plugs. Refer to Torque Specifications, SENR3130 for more information on the correct torques.
Do not fill the cooling system faster than 5 L (1.3 US gal) per minute to avoid air locks.Cooling system air locks may result in engine damage.
Illustration 1 g02163656
Typical example
Open the vent screw (1) enough to allow the air that is trapped to be purged from the system. Fill the cooling system with clean water.
Tighten the vent screw securely. Ensure that the coolant level is 25 mm (0.9843 inch) below filler neck (2) on the header tank or the radiator.
Install the cooling system filler cap. Operate the engine without load for approximately 30 minutes, in order to allow circulation. The coolant temperature should be at least 82 °C (180 °F).
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