Doosan P185WDOU-T4F, Руководство по эксплуатации и обслуживанию

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Operation & Maintenance Manual ENGINE OPERATION
1. Tightly connect the +/- terminals to prevent gaps. The sheath of battery connection
cables should not be damaged or broken.
2. If the recharge alarm indicator lamp suddenly lights or blinks during engine operation
and the engine shuts down, fix the fault of the electric apparatus.
3. If color or odor of exhaust gas is unusual during operation, shut down the engine,
diagnose the cause and fix the fault.
4. Check the engine status through the alarm indicator lamp and gauges mounted on
the apparatus during operation.
Engine Oil Pressure
If the engine oil pressure is not consistent at idle or does not reach the reference value while
the engine is operating at high speed, immediately shut down the engine and check oil
level and leakage.
Coolant Temperature
Operating an engine with too low coolant temperature increases fuel consumption, abrasion
of the cylinder liner, and shortens the engine's life span.
Revolutions per Minute (rpm)
On an electronic control engine, the engine control unit (ECU) prevents the engine from
being operated at too high rpm over the specifications to protect the engine. The memory of
ECU has various functions which cannot be changed by operators, such as fuel flow control,
ignition time delay, and blocking of fuel and ignition.
Operation in Winter
Preventing Coolant from Freezing
When only water used as coolant without mixing with antifreeze, corrosion in the engine,
degradation of cooling efficiency, and freezing of the engine in winter may occur. If the
engine is not operated for a long period during cold weather or in areas with cold climate,
fully discharge the coolant from the engine. Freezing of coolant leads to critical damage to
the engine. Please use a mixture of coolant with antifreeze at recommended ratio when
replacing or replenishing the coolant. The antifreeze prevents coolant from freezing.
Preventing Overcooling of the Engine
When the engine is cooled below the normal operating temperature, thermal efficiency
is lowered and fuel consumption as well as abrasion of the cylinder liner may increase.
Therefore, the engine should be operated within the normal operating temperature. If the
engine has been sufficiently operated, but the temperature of coolant remains below the
normal operating temperature, check the water temperature controller or other parts related
to the cooler.
Engine Oil
When viscosity of engine oil increases due to its low temperature during cold weather or in
areas with cold climate, the rpm may not be stable after starting the engine. To prevent this,
replace oil to engine oil for cold weather or areas with cold climate. When replacing engine
oil, use only genuine engine oil recommended by Doosan.
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