Inspect Cooling System For Leaks - AR20.00-P-1010GQ
Model 166 with engine 157, 276, 278, 642, 651
Model 292 with engine 157, 276, 278, 642
Shown on model 166.057
| 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 | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Remove | |||
| 1 | Switch on ignition | ||
| 2 | Adjust heater to maximum heat output | ||
| 3 | Unscrew cap (1) on coolant expansion reservoir (2) | ||
| 4 | Check coolant level and antifreeze content coolant | ||
| Model 166 with engine 157, 276, 278, 642, 651 | AP20.30-P-2050GB | ||
| Model 292 with engine 157, 276.8, 278, 642 | AP20.30-P-2050C | ||
If the antifreeze content in the coolant is too low. ↓ Refill with new coolant |
*BF20.00-P-1001-04A | ||
| Model 292 with engine 157, 276.8, 278, 642 | AP20.00-P-2082D | ||
| Model 166 with engine 157, 276, 278, 642, 651 | AP20.00-P-2080EW | ||
| 5 | Mount tester cap (3) at coolant expansion reservoir (2) | Fig 1 | |
| 6 | Connect pressure pump (4) at tester cap (3) | Fig 2 | |
| 7 | Apply a test pressure to the engine cooling system for 2 minutes | Damage will occur otherwise on the cooling circuit. |
|
| Model 166 with engine 157, 276, 278 1-stage cover latch Model 166 with engine 157, 276, 278 2-stage latch cover |
*BE20.30-P-1005-01A | ||
| Model 166 with engine 642, 651 1-stage cover latch Model 166 with engine 642, 651 2-stage latch cover Model 292 with engine 157, 276, 278 1-stage cover latch Model 292 with engine 157, 276, 278 2-stage latch cover Model 292 with engine 642 1-stage cover latch Model 292 with engine 642 2-stage latch cover. Test pressure for pressure-testing the engine cooling system |
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| Check | |||
| 8 | Check condition and coolant loss for all coolant carrying assembly parts and connections | ||
| Install | |||
| 9 | Actuate pressure relief button on the pressure pump (4) and remove test pressure in cooling circuit | ||
| 10 | Detach pressure pump (4) from tester cap (3) | ||
| 11 | Unscrew on tester cap (3) at coolant expansion reservoir (2) | ||
| 12 | Switch off ignition | ||
| 13 | Check and correct coolant level | ||
| Model 292 with engine 157, 276, 278, 642 | AP20.30-P-2050C | ||
| Model 166 with engine 157, 276, 278, 642, 651 | AP20.30-P-2050GB | ||
| 14 | Screw cap (1) onto coolant expansion reservoir (2) |
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 | ||||