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TM 5-4210-230-14&P-1
GAUGES AND INSTRUMENTS
If a failure is experienced in one side of the split
hydraulic system, the vehicle will still have the remaining
portion of the split system to allow stopping the vehicle;
however, the vehicle should be operated only with extreme
caution to reach a repair facility since the braking capabilities
will be reduced.
BATTERY GENERATING SYSTEM GAUGE VOLTMETER
The battery, generating system indicator gauge
indicates the condition of the battery, alternator and the
voltage regulator.
The gauge is divided into two sections. The left hand
side for the battery and right hand side for generating system.
Before starting engine the gauge will show the
condition of the battery. The battery section of the gauge is
subdivided into two colored segments.
GREEN - a properly-charged battery
RED - a low battery charge
With the engine running at operating speeds, the
gauge will show the condition of the generating section as the
gauge is divided into two colored segments:
GREEN - generating system working properly
RED - voltage output too high or too low
Constant reading in either RED area indicates that a
complete check of the battery and generating system be
made.
ENGINE SHUTDOWN WARNING LIGHT OR BUZZER
Vehicles may be equipped with an automatic shutdown
system which stops the engine in the event of high coolant
temperature or low engine oil pressure. A warning light on the
instrument panel along with a buzzer or bell will indicate high
coolant temperature or low oil pressure. If the temperature
and/or pressure continued to change beyond the warning
point to a predetermined level, the engine will automatically
shut down. Vehicles are equipped with an override feature
which will allow the engine to be re-started so that the vehicle
can be moved. The engine should be run no longer than
absolutely necessary. A decal located in front of the operator
provides instructions on how the override should be operated.
FRONT AXLE ENGAGEMENT LIGHT
This light will glow when the front axle is engaged.
FUEL GAUGE
The fuel gauge is electrically operated and indicates
the level of fuel in the tank. The gauge registers only when
the ignition is "on".
HOUR METER
In certain types of operations, the speedometer
(odometer) reading is not an accurate guide for engine or
chassis lubrication intervals The hour meter reading can be
used as a guide in determining lubrication and maintenance
intervals.
For
example:
Short
haul
operations
involving
considerable reverse gear work.
The hour meter records the number of hours that the
engine has operated.
OIL PRESSURE GAUGE ENGINE
The engine oil pressure gauge indicates the amount
of oil pressure being delivered to the engine.
If gauge fluctuates or does not register when the
engine is operating, stop the engine immediately and correct
cause.
OIL PRESSURE WARNING LIGHT
With ignition switch turned "ON" the light will glow
before engine starts. If light fails to go "OUT" after starting
engine, stop engine and determine cause of low oil pressure.
PYROMETER
A pyrometer is connected to a thermocouple to
indicate the temperature of the exhaust gases entering the
turbine side of the turbocharger.
SPEEDOMETER AND ODOMETER
The speedometer indicates the vehicle speed in miles
or kilometers, per hour. The odometer records the total of
numbers of miles travelled.
TACHOGRAPH
The tachograph indicates the engine speed in
revolutions per minute and records the number of hours the
engine has operated. The hour meter is based upon the
average of 100,000 revolutions per hour.
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