Doosan D20S-5 Operation & Maintenance Manual page 66

Operation Section Operation Section
1. 1. Engine Oil Pressure Indicator Light - Engine Oil Pressure Indicator Light -
Indicates insufficient engine oil pressure. Indicates insufficient engine oil pressure.
The light will come on when the ignition The light will come on when the ignition
switch is turned to the ON position. The switch is turned to the ON position. The
light should go off after the engine is started. If the light should go off after the engine is started. If the
light turns on while operating the lift truck, light turns on while operating the lift truck,
insufficient engine oil pressure is indicated. Park insufficient engine oil pressure is indicated. Park
the lift truck and stop the e the lift truck and stop the engine.
2. Alternator Indicator Light - Indicates if 2. Alternator Indicator Light -
the battery charging system is operational. the battery charging system is operational.
The light will come on when the ignition The light will come on when the ignition
switch is turned to the ON position. switch is turned to the O
The light should go off after the engine is started, The light should go off after the engine is started,
indicating the alternator is producing sufficient indicating the alternator is producing sufficient
voltage to charge the battery. If the light turns on voltage to charge the battery. If the light turns on
with the engine running, check the alternator with the engine running, check the alternator
charging system for a charging system for a malfunction.
3. Diesel Engine Start Preheat Indicator 3. Diesel Engine Start Preheat Indicator
Light - The light will come ON when the Light -
key is turned to the ON position from the key is turned to the ON position from the
OFF position. This indicates that the glow plugs are OFF position. This indicates that the glow plugs are
preheating the pre-combustion chambers for easier preheating the pre-combustion chambers for easier
starting. starting.
The amount of time needed to preheat the The amount of time needed to preheat the
pre-combustion chambers is approximately seven pre-combustion chambers is approximately seven
seconds, seconds, depending depending
temperature. When the light goes OFF the temperature. When the light goes OFF the
maximum pre-combustion chamber temperature maximum pre-combustion chamber temperature
has been reached and the key can be turned to the has been reached and the key can be turned to the
START position to start the engine. START position to start the engine.
4. 4. Diesel Engine Water in Fuel Filter Diesel Engine Water in Fuel Filter
Indicator Light - Indicator Light - Indicates when the
engine is running, there is water in the fuel engine is running, there is water in the fuel
filter exceeds 100cc. filter exceeds 100cc.
The light will come ON when the ignition switch is The light will come ON when the ignition switch is
turned to the ON position. The light should go off turned to the ON position. The light should go off
after the engine is started. If the light turns on with after the engine is started. If the light turns on with
the engine running, park the lift truck and stop the the engine running, park the lift truck and stop the
engine. engine.
Drain some fuel (and any water) until clean fuel Drain some fuel (and any water) until clean fuel
flows from the filter which approximately takes 5 to flows from the filter which approximately takes 5 to
6 seconds 6 seconds
5. Fuel Level Gauge - Indicates fuel level 5. Fuel Level Gauge -
(Gas, Diesel, or Dual Fuel Trucks Only) (Gas, Diesel, or Dual Fuel Trucks Only)
6. Engine Coolant Temperature Gauge - 6. Engine Coolant Temperature Gauge -
Indicates coolant temperature. If both tenth Indicates coolant temperature. If both
& ninth flash out of phase while operating & ninth flash out of phase while operating
the lift truck, overheating is indicated. Park the lift the lift truck, overheating is indicated. Park the lift
truck and stop the engine. truck and stop the engine.
Check the cooling system for a malfunction. Both Check the cooling system for a malfunction. Both
tenth & ninth will flash out of phase when the tenth & ninth will flash out of phase when the
coolant temperature reaches approximately 106°C coolant temperature reaches approximately 106°C
(223°F) on all engines. (223°F) on all engines.
ngine.
Indicates if
N position.
malfunction.
The light will come ON when the
on on the the surrounding surrounding
Indicates when the
Indicates fuel level
-63- -63-
7. Transmission Oil Temperature Gauge 7. Transmission Oil Temperature Gauge
- - Indicates transmission oil temperature. If Indicates transmission oil temperature. If
both tenth & ninth flash out of phase while both tenth & ninth flash out of phase while
operating the lift truck, excessive transmission oil operating the lift truck, excessive transmission oil
temperature is indicated. Park the lift truck and stop temperature is indicated. Park the lift truck and s
the engine. the engine.
8. 8.
Malfunction Indicator Lamp (MIL) Malfunction Indicator Lamp (MIL)
G420F(E) and G424F(E) engine control systems G420F(E) and G424F(E) engine control systems
are equipped with built-in fault diagnostics. Deteted are equipped with built-in fault diagnostics. Deteted
system faults can be displayed by the Malfunction system faults can be displayed by the Malfunction
Indicator Lamp (MIL) as Diagnostic Fault Codes Indicator Lamp (MIL) as Diagnostic Fault Codes
(DFC) or flash codes, and viewed in detail with the (DFC) or flash codes, and viewed in detail with the
use of service tool software. When the ignition key use of service tool software. When the ignition key
is turned ON the MIL will perform a self-test, is turned ON the MIL will perform a self-test,
illuminate once and then go OFF. If a detected falut illuminate once and then go OFF. If a detected falut
condition exists, the fault or faults will be stored in condition exists, the fault or faults will be stored in
the memory of the engine control module (ECM). the memory of the engine control module (ECM).
Once a fault occurs the MIL will illuminate and Once a fault occurs the MIL will illuminate and
remain ON. This signals the operator that a faults remain ON. This signals the operator that a faults
has been detected by the SECM. has been detected by
9. 9. Seat Seat
Equipment) Equipment)
Indicates when the seat belt dose not fastened by Indicates when the seat belt dose not fastened by
operator. operator.
The light will come on when the ignition switch is The light will come on when the ignition switch is
air air
turned to the on position. turned to the on position.
The light should go off after e The light should go off after engine is started.
10. Service hour Meter - 10. Service hour Meter - Indicates the
total number of hours the engine and the total number of hours the engine and the
lift truck have operated. The hour meter lift truck have operated. The hour meter
will operate when the ignition switch is in the ON will operate when the ignition switch is in the ON
p p osition, whether the engine is running or not. The osition, whether the engine is running or not. The
hour meter is used to determine lubrication and hour meter is used to determine lubrication and
maintenance intervals. maintenance intervals.
11. Parking indicator light- The light will 11. Parking indicator light-
come ON when the parking lever is applied. come ON when the parking
12. Front Floodlights- Push down on the 12. Front Floodlights-
switch(14), to the first step, to turn the front switch(14), to the first step, to turn the front
floodlights on. floodlights on.
Front and Rear Floodlights – – Push Front and Rear Floodlights
switch(14), to the second step, to turn both the fron switch(14), to the second step, to turn both the front t
and rear floodlights on. The and rear floodlights on. The floodlights are optional.
13. Transmission Neutral Position Light 13. Transmission Neutral Position Light
- - Indicates Indicates
transmission. transmission.
tenth
14. Front a 14. Front and Rear Floodli
front floodright is ON when push down switch front floodright is ON when push down switch
to the to the first step. first step.
The front and rear floodlights are ON when push down The front and rear floodlights are ON when push down
switch to the second step. switch to the second step.
G420F(E)/G424F(E) G420F(E)/G424F(E)
the SECM.
Belt Belt Warning Warning Light Light
ngine is started.
Indicates the
The light will
lever is applied.
Push down on the
Push down down on
floodlights are optional.
the the neutral neutral position position
nd Rear Floodlights Switch – ghts Switch – The
top
Engine Engine
(If (If
on the the
of of
The