COUPLER GP-QUICK 3153594 - Caterpillar

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9S-8140 Pressurizing Pump
(1) Release valve
(2) Adapter
(3) Hose The 9S-8140 Pressurizing Pump pressurizes the cooling system in order to test for leaks.
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Pressure cap that is mounted on the radiator
(4) Sealing surface between the pressure cap and the radiator Use the following procedures to inspect the pressure cap and test the pressure cap.
Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.
When the engine has cooled, loosen the pressure cap to the first stop. Remove the pressure cap when the pressure is released from the cooling system.
Inspect the pressure cap carefully. Look for damage to the seal. Look for damage to the surface that seals. Remove any debris on the cap, the seal, or the sealing surface.
Put the pressure cap on the 9S-8140 Pressurizing Pump.
Observe the exact pressure when the pressure cap opens.
Compare the pressure to the pressure rating that is found on the top of the pressure cap. The pressure cap is faulty if the pressure cap opens at a pressure beyond the range that is found on the pressure cap. Replace a faulty pressure cap with a new part. Testing The Radiator And Cooling System For Leaks
Use the following procedure to test the radiator and the cooling system for leaks.
Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.
When the engine has cooled, loosen the pressure cap to the first stop. Allow the pressure to release from the cooling system. Then remove the pressure cap.
Make sure that the coolant covers the top of the radiator core.
Put the 9S-8140 Pressurizing Pump on the radiator.
Use the pressurizing pump to increase the pressure to an amount of 20 kPa (3 psi) more than the operating pressure of the pressure cap.
Inspect the radiator for leakage.
Inspect all connections and hoses of the cooling system for leaks. The radiator and the cooling system do not have leakage if all of the following conditions exist:
You do not see any leakage after five minutes.
The dial indicator remains constant beyond five minutes.
The reading on the dial indicator decreases, and you do not observe any outside leaks.
If any leakage exists on the inside of the cooling system, identify the location of the leakage. Repair the source of the leak in the cooling system. Testing The Water Temperature Regulator
Remove the water temperature regulator from the engine.
Hang the water temperature regulator in a pan of water. Put a thermometer in the water. Put the water temperature regulator completely under water. Do not allow the water temperature regulator to be in contact with the pan.
Heat the water in a container. Stir the water in order to keep all of the water at the same temperature.
Replace the water temperature regulator if the water temperature regulator does not open at the temperatures that are found in Specifications, "Water Temperature Regulator". Engine And Cooling System Heat Problems
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