Doosan D50S-5 Operation & Maintenance Manual page 82

If any light comes on, have corrections made If any light comes on, have corrections made
before operating truck. before operating truck.
Typical Example Typical Example
1. 1. Alternator indicator light will be OUT in normal Alternator indicator light will be OUT in normal
operation. If the light comes ON with the engine operation. If the light comes ON with the engine
running, the alternator is not charging. running, the alternator is not charging.
Typical Example Typical Example
2. 2. Observe fuel gauge and service hour meter Observe fuel gauge and service hour meter
frequently to assure they are operating properly. frequently to assure they are operating properly.
3. 3. Observe the brake air pressure gauge and Observe the brake air pressure gauge and
indicator light frequently (if equipped) while indicator light frequently (if equipped) while
engine is running. Air pressure indicator must be engine is running. Air pressure indicator must be
in the green range. If light comes on, it indicates in the green range. If light comes on, it indicates
loss of air pressure. loss of air pressure.
NOTE: NOTE: Do not idle engines for prolonged periods of Do not idle engines for prolonged periods of
time. These engines can be started easily, time. These engines can be started easily,
even when hot. even when hot.
Operation Section Operation Section
Electronic Controlled Spark-Ignition Engines Electronic Controlled Spark-Ignition Engines
G643E Engine G643E Engine
WARNING WARNING
oil temperature is reached, the Electronics oil temperature is reached, the Electronics
remains in Neutral, and the symbol of the remains in Neutral, and the symbol of the
cold start phase will be indicated on the cold start phase will be indicated on the
Transmission Display. Transmission Display.
Indication on the Transm Indication on the Transmission Display
After the indication on the Transmission Display is After the indication on the Transmission Display is
extinguished, the full driving program can be utilized extinguished, the full driving program can be utilized
out of "NEUTRAL". out of "NEUTRAL".
4. 4. The engine oil pressure indicator light (1), will not The engine oil pressure indicator light (1), will not
come ON with the engine running, unless there come ON with the engine running, unless there
is low or no oil pressure. Stop the engine is low or no oil pressure. Stop the engine
immediately, if the light comes ON. immediately, if the light comes ON.
5. 5. The G643E engine MIL (Malfunction indicator The G643E engine MIL (Malfunction indicator
Light) will not come ON with engine running, Light) will not come ON with engine running,
unless the fault or faults are stored in the unless the fault or faults are stored in the
memory of the engine control module (ECM). memory of the engine control module (ECM).
Stop the engine and check the electric engine Stop the engine and check the electric engine
control system if the light comes ON. Refer control system if the light comes ON. Refer
G643E Engine of this section. G643E Engine of this section.
6. 6. The D439E engine MIL (Malfunction indicator The D439E engine MIL (Malfunction indicator
Light) will not come ON with engine running. Light) will not come ON with engine running.
If MIL does not disappear, please contact If MIL does not disappear, please contact
service center. service center.
(1) Engine oil pressure indicator light (1) Engine oil pressure indicator light
(2) Engine malfunction indicator light (2) Engine malfunction indicator light
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ission Display