TP-5594 5/952-4 Operation
Fault Shutdowns
Low Oil Pressure
Shutdown Switch
The low oil pressure (LOP) shutdown feature protects
the engine against internal damage if the oil pressure
drops below 7 psi (48.3 kPa) due to an oil pump fault or
other engine malfunction. The LOP shutdown does not
protectthe setfromdamage duetooperating withtheoil
level below the safe range—it is not a low oil level
shutdown. The only protection against running out ofoil
is to check the oil level regularly and add oil as needed.
Location of the LOP shutdown switch is shown in
Figure 2-4.
NOTE
Thisis notalowoillevelshutdown. Properoillevelmust
be maintained for low oil pressure shutdown switch to
function.
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1. Low Oil Pressure Switch
Figure 2-4. Low Oil Pressure Shutdown Switch
High Water Temperature
Shutdown Switch
The generator set is also equipped with a high water
temperature (HWT) shutdown switch. See Figure 2-5.
The unit will automatically shut down when the engine
coolanttemperatureexceeds230_F (110_C). Cause of
the shutdown must be corrected before the generator
can be restarted.
NOTE
This is not a low coolant level switch. Proper coolant
level must be maintained for high water temperature
shutdown switch to function.
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1. High Water Temperature Switch
Figure 2-5. High Water Temperature
Shutdown Switch
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