Inspect Cooling System For Leaks - AR20.00-P-1010SR
ENGINE 281, 780 in MODEL 453
| Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| Check | |||
| 1 | Remove maintenance flap. | ||
| 2 | Turn the cap (1) on the coolant expansion reservoir (2) counter-clockwise by half a turn, bleed overpressure, and then unscrew the cap (1). | ||
| 3 | Check coolant level in the coolant expansion reservoir (2). | If the coolant level is not at the top marking, ↓ Determine the cause or correct the coolant level. |
|
| Coolant specifications | BB00.40-P-0310-01A | ||
| Anticorrosion agent/antifreeze (specification 325.6) | BB00.40-P-0325-06A | ||
| Premixed coolant (specification 326.6) | BB00.40-P-0326-06A | ||
| 4 | Attach pressure pump with adapter to the coolant expansion reservoir (2). | Fig 2 | |
| Fig 1 | |||
| 5 | Check cooling system for leaks. | Pressure drop in filled engine cooling system If a pressure drop is detected, ↓ Determine the leakage and rectify it. |
*BE20.00-P-1001-02SR |
| 6 | Remove pressure pump and adapter from coolant expansion reservoir (2). | ||
| 7 | Check coolant level in the coolant expansion reservoir (2). | If the coolant level is not at the top marking, ↓ Correct coolant level. |
|
| Coolant specifications | BB00.40-P-0310-01A | ||
| Anticorrosion agent/antifreeze (specification 325.6) | BB00.40-P-0325-06A | ||
| Premixed coolant (specification 326.6) | BB00.40-P-0326-06A | ||
| 8 | Seal coolant expansion reservoir (2) with cap (1). | ||
| 9 | Install maintenance flap. |
ENGINE COOLING SYSTEM
| Number | Designation | Engine 281, 780 in model 453 | ||
|---|---|---|---|---|
| BE20.00-P-1001-02SR | Pressure drop in filled engine cooling system | Test pressure | bar | 1, 6 |
| Test period | min | 2 | ||
| Pressure drop | bar | 0, 0 | ||