Emergency Buzzer
c2 dm 20.07.016
The emergency buzzer sounds during the ignition sequence and whenever one of the following conditions exists:
-
The engine oil pressure falls below the preset level shown in Fig..
-
The coolant temperature rises above the preset level, which is 225°F (107°C).
-
The air pressure falls below the preset level, which is 65 psi (448 kPa).
-
The parking brake is set with the vehicle moving at a speed greater than 2 mph (3 km/h).
Table 1, Oil Pressure Specifications
|
Oil Pressure Specifications* 1 |
||
|
Engine Model |
At Idle Speed: psi (kPa) |
At Rated RPM: psi (kPa) |
|
Cummins ISB |
10 (69) |
30 (207) |
- * Oil pressure is given with the engine at operating temperature. With the engine cold, oil pressure may be higher. Individual engines may vary from the listed pressures; observe and record pressures when the engine is new to create a guide for checking engine condition.
Table 1, Oil Pressure Specifications
Note: