TP-5648 8/93 Operation 2-7
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
protectthesetfromdamageduetooperatingwiththeoil
level below the safe range—IT IS NOT A LOW OIL
LEVEL SHUTDOWN. The only protection against
running out of oil is to check the oil level regularly and
addoilasneeded.LocationoftheLOPshutdownswitch
is shown in Figure 2-4.
NOTE
Thisis not alow oil levelshutdown. Proper oillevel must
be maintained for low oil pressure shutdown switch to
function.
1-932
1
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
coolant temperature exceeds 230_F (110_C). Cause of
the shutdown must be corrected before the generator
can be restarted.
1-932
1
1. High Water Temperature Switch
Figure 2-5. High Water Temperature
Shutdown Switch
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