PART 4: CONTROLS AND DISPLAYS GAUGES
(R10/06) Y53-6007 – 51 –
Air Filter Restriction Indicator Gauge
11495
This gauge indicates the condition of the engine air
cleaner and is measured by inches of water (H
2
O). A
clean filter should register 7” H
2
O (may vary with system
design); a filter whose life is over will register approxi
-
mately 20” H
2
O (for Cummins engines) or 25” H
2
O (for
Caterpillar engines).
CAUTION: Continued operation with the Air
Filter Re-striction Gauge reading 25” H
2
O may
cause damage to the engine. Inspect the filter
and replace if necessary. 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.
Shift Pattern Display
The correct shift pattern for your vehicle appears on your
control panel or windshield or on a medallion in the shift
knob. It is important that you know more about your trans
-
mission than just the shift pattern. Please read the manu-
facturer’s manual that is included with your vehicle.
Mirrors
WARNING! Optional convex outside rearview
mirrors make objects appear smaller and far-
ther away than they really are. You could have
an accident if you were too close to another
vehicle or other object. Keep plenty of space
between your vehicle and others when you
turn or change lanes. Remember that other
objects are closer than they seem.
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