After Starting the Engine
Observe all indicator lights and gauges frequently
during operation, to make sure all systems are
working properly.
WARNING
If any light comes on, have corrections made
before operating truck.
Typical Example
1. Alternator indicator light will be OUT in normal
operation. If the light comes ON with the engine
running, the alternator is not charging.
Typical Example
2. Observe fuel gauge and service hour meter
frequently to assure they are operating properly.
3. Observe the brake air pressure gauge and
indicator light frequently (if equipped) while
engine is running. Air pressure indicator must be
in the green range. If light comes on, it indicates
loss of air pressure.
NOTE: Do not idle engines for prolonged periods of
time. These engines can be started easily,
even when hot.
NOTE: At an oil temperature in the shifting circuit
lower than -12°C, the transmission must be
warmed-up for some minutes. This must be
carried out in Neutral with an increased
engine speed (about 1500 rpm). Until this
oil temperature is reached, the Electronics
remains in Neutral, and the symbol of the
cold start phase will be indicated on the
Transmission Display.
Indication on the Transmission Display
After the indication on the Transmission Display is
extinguished, the full driving program can be utilized
out of "NEUTRAL".
4. The engine oil pressure indicator light (1), will not
come ON with the engine running, unless there
is low or no oil pressure. Stop the engine
immediately, if the light comes ON.
5. The G643E engine MIL (Malfunction indicator
Light) will not come ON with engine running,
unless the fault or faults are stored in the
memory of the engine control module (ECM).
Stop the engine and check the electric engine
control system if the light comes ON. Refer
G643E Engine of this section.
6. The D439E engine MIL (Malfunction indicator
Light) will not come ON with engine running.
If MIL does not disappear, please contact
service center.
(1) Engine oil pressure indicator light
(2) Engine malfunction indicator light
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