WP13 Diesel Engine Series Operating Manual
9
whether the starting system circuits are normally connected and whether the battery is sufficiently
charged. Then open the fuel tank valve, loosen the vent screw on the fuel strainer, use the hand
pump on the fuel strainer to exclude the air in the fuel system.
4.5 Starting of the Diesel Engine
◆
Turn the power switch and its power key of the vehicle to the starting positions, and place the
gear shift lever at its neutral position, and then set down to start the engine.
◆
Step down the clutch and accelerator pedals, rotate the power key to start the diesel engine, and
if the engine cannot be started in 5-10 seconds, you should wait for 1 minute and then repeat
the above-mentioned starting process. But if the engine cannot be started for 3 consecutive
times, you should stop starting it and never start it again before troubleshooting. After the
engine is started, you should pay attention to the meter readings and the oil pressure gauge
should show the pressure immediately. Take care not to let the cold engine running at its high
speed, and you should let it idling first for some time (but not for long).
◆
If the diesel engine is to be started under the condition of low temperature, auxiliary starting
devices should be used so that the relay could have the electronic heating flange working to
realize smooth starting in the environment temperature of -30
℃
.
4.6 Operation of the Diesel Engine
◆
After the diesel engine is started, first let it idling for a few minutes, then increase its speed up
to 1000-1200 r/min, and then have it partially loaded. Only when the water and engine oil
temperature is higher than 60
℃
and 50
℃
respectively can you have it working at its full load.
You should increase its load and speed gradually, and try to avoid sudden increase or decrease
of its load.
◆
During the running-in period of 60h (first 3000 kilometers’ running), the diesel engine should
be working at a medium load, and the vehicle should not be equipped with a trailer.
◆
Slow down in time when driving along any slope and never have it working for long at a large
torque. Moreover, do not have its load too small or have its speed too low. Otherwise, it may
easily suffer from engine oil channeling and other faults.
◆
Under normal use, the diesel engine can work continuously at its rated power and rated speed,
but if it is working at 105% of its rated speed and 110% of its rated power, a maximum of 20
minutes’ running can be permitted. The diesel engine should be kept idling for 1-2 minutes
before shutdown after unloading.
◆
Attention should always be paid to the parameter values and checking points as follows:
①
Pressure of the lubricating oil in the main oil passage is 350-550 kPa
②
Temperature of the oil in the oil sump
＜
110
℃
.
③
Coolant outlet temperature (80+5)
℃
, never beyond 95
℃
.
④
Exhaust temperature after turbine
＜
600
℃
⑤
Inlet temperature after intercooler (50-55)
℃
.
⑥
Check the exhaust color in order to identify the working quality and load conditions of the fuel
injector, and if the smoke color is seriously bad, stop immediately for troubleshooting.
⑦
Particularly, check whether the diesel engine has water, gas or oil leakage, and if found, stop
immediately for troubleshooting.
