Inspect Cooling System For Leaks - AR20.00-P-1010LF
Model 217 with engine 157, 176, 177, 276, 278, 279
Model 222 with engine 157, 176, 177, 256, 264, 276.8/9, 277, 278, 279, 642, 651, 656
Shown on engine 278
| 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 | Switch on ignition. | ||
| 2 | Adjust heater to maximum heat output. | ||
| 3 | Remove cap (1). | ||
| 4 | Check coolant level and correct. | Model 222 with engine 157, 176, 177, 256, 264, 276.8/9, 277, 278, 279, 642, 651, 656Coolant mixing ratio |
*BF20.00-P-1001-04A |
| 5 | Install tester cap (3) at coolant expansion reservoir (2). | Fig 1 | |
| 6 | Connect pressure pump (4) to tester cap (3). | Fig 2 | |
| Check | |||
| 7 | Apply a test pressure to the engine cooling system for 2 minutes. | ||
| Model 217, 222 with engine 176, 177Test pressure for pressure-testing the cooling system | *BE20.30-P-1002-01D | ||
| Model 217 with engine 157, 276, 278, 279 Model 222 with engine 157, 256, 264, 276, 277, 278, 279, 642, 651, 656 Test pressure for pressure-testing the engine cooling system |
*BE20.30-P-1005-01A | ||
| 8 | Check condition of all coolant carrying component parts and connections and check for leak tightness. | In the event of pressure loss. If there is a problem, ↓ Replace corresponding components. |
|
| Install | |||
| 9 | Release test pressure via valve at pressure pump (4) | Fig 2 | |
| 10 | Remove pressure pump (4) from tester cap | ||
| 11 | Remove tester cap (3). | Fig 1 | |
| 12 | Check coolant level and correct. | *BF20.00-P-1001-04A | |
| 13 | Attach cap (1). |
COOLING SYSTEM CHECK VALUES
| Number | Designation | Engine 176 | Engine 177 | ||
|---|---|---|---|---|---|
| BE20.30-P-1002-01D | Test pressure for pressure-testing the cooling system | Overpressure | bar | 1, 4 | 1, 4 |
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 |
COOLANT MIXING RATIO
| Number | Designation | All engines, except engine 178 in model 190.381 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-04A | Coolant mixing ratio | Antifreeze/water | Up to -25°C | % | - |
| Up to -37°C | % | 50/50 | |||
| As of -38°C | % | 55/45 | |||
| Overview and specifications sheet | BB00.40-P-0310-01A | ||||
| References to sheet specification | BB00.40-P-0310ZZ | ||||