Engine oil pressure - The engine oil pressure switch indicates when oil pressure drops below rated system pressure.
Coolant temperature - The coolant temperature switch indicates high jacket water coolant temperature.
Note: The sensing element of the coolant temperature switch must be submerged in coolant in order to operate.
Engines may be equipped with warning alarms in order to alert the operator when undesirable operating conditions occur.
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When an alarm is activated, corrective measures must be taken before the situation becomes an emergency in order to avoid possible engine damage. |
If corrective measures are not taken within a reasonable time, engine damage could result. The warning alarm will continue until the condition is corrected. The warning alarm may need to be reset.
A switch may be installed in the warning alarm while the engine is stopped for repairs. Before the engine is started, ensure that the switch is moved to the ON position and that the warning lights are flashing. The engine will not be protected if the switch is left in the OFF position.