PIN-SPRING 3945482 - Caterpillar

Shutoffs
Shutoffs and alarms are one of two types:
Electrical
MechanicalAll electric shutoffs and all electronic alarms operate through components that actuate switches in a sensing unit.Shutoffs are set at critical levels for the following conditions:
Operating temperature
Operating pressure
Operating level
Operating rpmA particular shutoff may need to be reset before the engine will start.
Always determine the cause of the engine shutdown. Make necessary repairs before attempting to restart the engine.
Make sure that you are familiar with the following items:
Types and locations of shutoff
Conditions that cause each shutoff to function
Resetting procedure for engine restartAlarms
Engines may be equipped with alarms that are used to alert the operator when undesirable operating conditions occur.
When an alarm is activated, corrective measures must be taken before the situation becomes an emergency in order to avoid possible engine damage.
Once an alarm is activated, take corrective measures within a reasonable amount of time, or engine damage could result. The alarm will continue until the condition is corrected. The alarm may need to be reset.A switch may be installed in the alarm for silencing. This switch may be installed while the engine is stopped for repairs. Check for this switch before you start the engine. Make sure 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.