Komatsu 830E-AC Shop Manual page 991

Engine Oil Pressure Gauge
Gauge (9, Figure 5-7) indicates pres-
sure in the engine lubrication system
in pounds per square inch (psi).
Normal operating pressure
engine warm up should be:
Idle - 138 kPa (20 psi) Minimum
Rated Speed - 310 - 483 kPa (45 to 70 psi)
Right Turn Signal Indicator
Indicator (10, Figure 5-7) illuminates to indicate that
the right turn signals are operating when the turn sig-
nal lever on the steering column is moved upward.
Moving the lever to its center position will turn the
indicator off.
Tachometer
Tachometer (11, Figure 5-7) displays engine crank-
shaft speed in revolutions per minute (rpm).
Governed rpm
Low Idle - 750 rpm
High Idle - 1910 rpm
Full Load - 1900 rpm
High Beam Indicator
Indicator (12, Figure 5-7) illuminates to indicate that
the truck headlights are on high beam. To switch the
headlights to high beam, push the turn indicator lever
away from the steering wheel. For low beam, pull the
lever toward the steering wheel.
Speedometer/Payload Meter Display
Speedometer/payload meter display (13, Figure 5-7)
indicates the truck speed in kilometers per hour (kph)
or in miles per hour (mph). The display also shows
payload meter information. For more information, see
Section 60, Payload Meter III, in this manual.
N05070 10/06
after
Operator Controls
Left Turn Signal Indicator
Indicator (14, Figure 5-7) illuminates to indicate that
the left turn signals are operating when the turn sig-
nal lever on the steering column is moved downward.
Moving the lever to its center position will turn the
indicator off.
Water Temperature Gauge
Gauge (15, Figure 5-7) indicates the
temperature of the coolant in the
engine cooling system. The tempera-
ture range after engine warm-up and
truck operating under normal condi-
tions should be:
85°-97°C (185°-207°F)
Lamp Test Switch
Switch (16, Figure 5-7) is provided
to allow the operator to test the
indicator lamps prior to starting the
engine. To test the lamps and the
warning horn, turn key switch (1,
Figure 5-7) to the RUN position
and press the top side of the
rocker switch for the CHECK posi-
tion. All lamps should illuminate
except those which are for optional
equipment that may not be installed. The warning
horn should also sound. Any lamp bulbs which do not
illuminate should be replaced before operating the
truck. Releasing the spring-loaded switch will allow
the switch to return to the OFF position. A green LED
will illuminate in both switch positions.
Light Switch
The instrument panel lights, clear-
ance lights, and the headlights are
controlled by this three-position
rocker type switch (17, Figure 5-7).
OFF is selected by pressing the
bottom of the switch. Press the top
of the switch until it reaches the first
detent to select the panel lights,
clearance lights and tail lights only.
Press the top of the switch again
until it reaches the second detent to select head-
lights, panel lights, clearance lights and tail lights.
N5-19