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TACHOMETER
The tachometer (14, Figure 5-5) registers engine
crankshaft speed in hundreds of revolutions per min-
ute (RPM).
Governed RPM (Cummins QSK60-C Engine):
Low Idle - 600 RPM
High Idle - 1900 RPM
Full Load - 1910 RPM
RIGHT TURN SIGNAL INDICATOR
This light (15, Figure 5-5) illumi-
nates to indicate the right turn sig-
nals are operating when the turn
signal lever on the steering column
is moved upward. Moving the lever
to its center position will turn indica-
tor "Off".
HIGH BEAM INDICATOR
The high beam indicator (16, Figure
5-5) when lit, indicates that the truck
headlights are on "High" beam. To
switch headlights to "High" beam,
push the turn indicator lever away
from steering wheel. For "Low"
beam, pull lever toward the steering
wheel.
LEFT TURN SIGNAL INDICATOR
This light (17, Figure 5-5) illumi-
nates to indicate the left turn signals
are operating when the turn signal
lever on the steering column is
moved downward. Moving the lever
to its center position will turn indica-
tor "Off".
SPEEDOMETER
The speedometer (18, Figure 5-5) indicates the truck
speed in miles per hour (MPH), or with OPTIONAL
speedometer, it may indicate truck speed in kilometers
per hour (KPH).
N5-16
VOLTMETER
The voltmeter (19, Figure 5-5) indi-
cates the voltage of the 24V battery
system. Normal indicated voltage at
high RPM is 27 to 28 volts with bat-
teries in fully charged condition.
When keyswitch (10) is "On" and
engine is NOT running, voltmeter in-
dicates battery charge condition.
ENGINE OIL PRESSURE GAUGE
The engine oil pressure gauge
(20, Figure 5-5) indicates pressure
in the engine lubrication system in
pounds per square inch (psi).
Normal operating pressure
after engine warm up should be:
Idle - 20 psi (138 kPa) Minimum
Rated Speed - 45 to 70 psi (310 - 483 kPa)
WATER TEMPERATURE GAUGE
The water temperature gauge (21,
Figure 5-5) indicates the tempera-
ture of the coolant in the engine
cooling system. The temperature
range after engine warm-up and
truck operating under normal condi-
tions should be:
185°-207°F (85°-97°C)
FUEL GAUGE
The fuel gauge (22, Figure 5-5) indi-
cates how much diesel fuel is in the
fuel tank.
The fuel tank capacity is
1200 gallons (4542 liters).
Operator Cab Controls
N05044
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Table of Contents
Troubleshooting
