B20.00-0044-01
B20.00-0067-01
1 Supply mouth cap
2 Expansion tank
3 Tightness checking device
3.1 Intake connection, quick coupler
3.2 Discharge valve
3.3 Intake pressure valve
| Check | ||
Danger! | Risk of injury in the skin and eyes due to burns caused by overheated steam or coolant. Risk of poisoning by coolant ingestion | Only open the coolant system in a temperature below 90 °C. Open slowly the cap and allow the pressure surplus to go out. It is advisable not to keep coolant in beverage recipients. Wear protective gloves, clothes and goggles. | |
1 | Remove the expansion tank's (2) cap (1) | ||
2 | Actuate the heat control, putting it in the opened position | Vehicle equipped with heating system. | |
3 | Check the coolant level | Replenish, if necessary . | |
| Cooling system: Check and restore the level and concentration of the coolant | Bus | |
| Trucks | ||
4 | Install the tightness tester (3) in the reservoir supply mouth (2) | Assemble the tester, in such a way that it stays firmly fastened in the mouth. | |
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5 | Connect a compressed air line to the intake connection (3.1) of the tester device (3) | The compressed air line must be equipped with an open and shut control valve. | |
6 | Submit the system to a pressure of 1.0 bar, controlling it by the regulator (3.3) | When the pressure in the system reaches the check value (1.0 bar), interrupt the air feed, closing the compressed air line control valve. | |
7 | Check the tightness of the system, paying attention to the pressure stability, shown in the manometer of the tester device (3) | If a pressure drop is shown in manometer tester (3), check for leaks the engine, the water pump, the hoses, tubes, connections, radiator, expansion tank of the heating and cooling system. | |
8 | Depressurize the system through the discharge valve (3.2) and remove the tester (3) | Disconnect the compressed air line from the intake connection (3.1). | |
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9 | Correct eventual leaks in the heating and cooling system | Re-tighten the clamps and replace them. Replace the hoses or tubes. Repair or replace the radiator, water pump, expansion tank and correct engine leaks. | |
10 | Install the cap (1) in the expansion tank's (2) | If necessary, replenish the coolant level: | |
| Cooling system: Check and restore the level and concentration of the coolant | Bus | |
| Trucks |
001 589 83 21 00
Tightness checking device
Referenced documents
- ap2000b2010a Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration
- ap2000b2010c Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration
- as2000b000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.