HOUSING 2275475 - Caterpillar

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. Open the drain valve (if equipped) or remove the cooling system drain plugs. Allow the water to drain. Flush the cooling system with clean water. If equipped, be sure to flush the heater and any related supply and return lines. Close the drain valve (if equipped). Clean the drain plugs. Install the drain plugs. Refer to the Specifications Manual, SENR3130, "Torque Specifications" for more information on the proper torques.Coolant Vacuum Fill 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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand.Cooling System Conditioner contains alkali. Avoid contact with skin and eyes.
Make sure surge tank/radiator drain is closed.
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(1) Vacuum Module
(2) Surge tank/radiator cap adapter
Connect vacuum module (1) to surge tank/radiator cap adapter (2).
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(3) Vacuum module vent valve
(4) Vacuum module air valve
Turn vacuum module vent valve (3) to CLOSED. Make sure vacuum module air valve (4) is turned to CLOSED.
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(1) Vacuum Module
(5) Air hose
Connect air hose (5) to vacuum module (1).
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(6) Vacuum module exhaust hose
Illustration 6 g06354882
Make sure vacuum module exhaust hose (6) is positioned in a safe manner and vacuum module coolant supply hose (7) is placed safely in coolant supply container.
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(4) Vacuum module air valve
Open vacuum module air valve (4).
Allow the vacuum module to draw 68 kPa (20.08 inch mercury) to 85 kPa (25.10 inch mercury) on the cooling system.
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When vacuum module gauge reaches green zone, open coolant supply valve (8).
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(4) Vacuum module air valve
(9) Surge tank
(10) Coolant cold minimum level
Observe the coolant level in surge tank/radiator (9). When the coolant level reaches the coolant "Cold Minimum" level (10), close vacuum module air valve (4). Allow the existing vacuum to finish filling the cooling system. Open the vacuum module vent valve when the gauge reaches 10 kPa (3 inch mercury) in the red zone.
Illustration 10 g06355752
(1) Vacuum Module
(2) Surge tank cap adapter
(5) Air hose
(10) Coolant cold minimum level
(9) Surge tank
Disconnect shop air hose (5) from vacuum module (1).
Remove vacuum module (1) and coolant surge tank adaptor (2) from surge tank (9).
Disconnect the cooling management hose from the cooling system quick disconnect.
Ensure that the coolant is at the coolant cold minimum level (10)