22 SEBU8337
Operation Section
Gauges and Indicators
Gauges and Ind icators
i02773410
Gauges and Indicators
Your engine m
ay not have the same gauges or all of
the gauges that are described. For more information
about the gauge package, see the OEM information.
Gauges provide indications of engine performance.
Ensure that the gauges are in good working order.
Determine th
e normal operating range by observing
the gauges over a period of time.
Noticeable c
hanges in gauge readings indicate
potential gauge or engine problems. Problems may
also be indicated by gauge readings that change
even if the r
eadings are within specifications.
Determine and correct the cause of any significant
change in the readings. Consult your Perkins
distribut
or for assistance.
NOTICE
If no oil pressure is indicated, STOP the engine. If
maximum coolant temperature is exceeded, STOP
the engine
. Engine damage can result.
Engine Oil Pressure – The range for the
engine oil
pressure is 420 kPa (61 psi).
Jacket Wat
er Coolant Temperature –
Typical water temperature into the engine
is 88 °C (190 °F). Higher temperatures
may occur u
nder certain conditions. The water
temperature reading may vary according to load. The
reading should never exceed 107 °C (224 °F).
1. Ahighwate
r temperature switch is installed in the
cooling system.
Tachomete
r–This gauge indicates engine
speed (rpm).
Ammeter – This gauge indicates the
amount of charge or discharge in the
battery charging circuit. Operation of the
indicator should be to the right side of “0” (zero).
Service Hour M eter – The gauge indicates
operating hours of the engine.
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