Check Engine Cooling System For Leaktightness - AR20.00-P-1011MRK
Engine 264, 274 In Model 167
Shown With Engine 264
| Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Remove | |||
| 1 | Release cap (1) of the coolant expansion reservoir (2) so that overpressure can be completely relieved. | ||
| 2 | Remove cap (1). | ||
| 3 | Check coolant level and correct. | ||
| AP20.30-P-2050N | |||
| 4 | Attach tester cap (3) to the coolant expansion reservoir (2) and connect pressure pump (4) to the tester cap (3). | Fig 1 | |
| Fig 2 | |||
| Check | |||
| 5 | Apply a test pressure to the engine cooling system for 2 minutes. | Do not exceed the specified test pressure. Otherwise the engine cooling system will be damaged. Test pressure for pressure-testing the engine cooling system |
*BE20.30-P-1005-01A |
| 6 | Check condition of all coolant carrying component parts and connections and check for leak tightness. | In the event of pressure loss. If problems exist, ↓ Replace corresponding components. |
|
| Install | |||
| 7 | Release the test pressure via the valve on the pressure pump (4), disconnect the pressure pump (4) from the tester cap (3) and remove the tester cap (3). | ||
| 8 | Check coolant level and correct. | ||
| AP20.30-P-2050N | |||
| 9 | Install cap (1). |
RADIATOR OR EXPANSION RESERVOIR CAP
| Number | Designation | 1-stage cover latch | 2-stage latch cover | ||
|---|---|---|---|---|---|
| BE20.30-P-1005-01A | Test pressure for pressure-testing the engine cooling system | Overpressure | bar | 1, 4 | 1, 4 |