operators_manual

NOTE
The maximum allowable restriction
could vary according to the type or
make of the engine. Consult the en-
gine manufactures manual or engine
dealer for fuel restriction specifica-
tions.
Air Filter Restriction Indicator or
Gauge
This gauge indicates the condition of the
engine air cleaner and is measured by
inches of water (H2O). A clean filter should
register 7 in. H2O (may vary with system
design) and a filter whose life is over will
register approximately 25 in. H2O.
CAUTION
Continued operation with the Air Filter
Restriction Gauge reading 25 in. H2O
may cause damage to the engine. In-
spect the filter and replace if necessa-
ry. Holes in the paper element render
an air cleaner useless and may cause
the Air Filter Restriction Gauge to give
a false reading, even if the element is
clogged. Replace the element if it is
damaged.
Engine, Oil Pressure
It is important to maintain oil pressure
within acceptable limits. If oil pressure
drops below the minimum psi a red
warning light in the gauge will turn on, the
Stop Engine light will come on and an
audible alarm tone will sound.
Engine, Oil Temperature
The Engine Oil Temperature gauge
indicates the engine oil temperature.
If the oil temperature exceeds the
maximum limits, a red warning light in the
gauge will turn on. Do not exceed
maximum engine oil temperature
recommended by the engine manufacturer.
(See the Engine Operation and
Maintenance Manual for details.)
Manifold Pressure Gauge
This gauge indicates the pressure in the
intake manifold. The pressure in the
manifold is directly related to the turbo
output and is related to the engine power
output.
If the pressure indicated by your manifold
pressure gauge goes down, there may be
something wrong with your engine. Have it
checked by a qualified service person.
Fuel Pressure Gauge
Your vehicle may also have a fuel pressure
gauge. This should not to be confused with
the standard fuel level gauge of the fuel
tank.
CONTROLS - Optional Gauges
86 Y53-6047-2HEN (03/18)
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