SHUTOFF AND ALARM SYSTEMS
1. Oil pressure switch. Z Water temperature contactor. 3. Source voltage. 4. Toggle switch (optional). . Signal
lights (three). 7. Air temperature contactor.
If the oil pressure is too low or the water temperature
is too high this system will activate signal lights (6).
When the signal lights activate, stop the engine
immediately. This will prevent damage to the engine
from heat or not enough lubrication. Find and
correct the problem that caused the signal lights to
Before the engine is started it will be necessary to
override oil pressure switch ( I ) or the signal lights will
activate. This is done by either a manual override button
on the (earlier) oil pressure switch or toggle switch (4).
Oil pressure will return the manual override button to the
run position. The toggle switch must be manually closed
when the engine has oil pressure.