WEICHAI WD10 Service Manual - 18 Start The Engine
Service Manual for WD10 Diesel Engine
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on instrument panel or check the fuel tank.
(3) Check engine oil level
Engine oil level should between the bottom scale and top scale on oil dipstick, add engine oil
through oil filling port if necessary.
(4) Check whether all accessories are reliably connected to the engine and eliminate abnormal
phenomenon. Check whether start-up system wirings are normal, whether storage battery is
fully charged. And then open fuel tank valve, loosen the air bleeding screw on fuel coarse filter,
deflate the fuel system by using the hand pump on fuel coarse filter.
18 Start the Engine
(1) Turn on the power switch and insert the electric lock key, put gear shifting handle in neutral,
then begin to start the engine.
(2) Depress the clutch pedal and accelerator pedal, and then turn the electric lock key to start the
engine. If the engine failed to start in 5~10s, then restart it 1min later. But if failed three times
in a row, you should stop trying, find out the cause and eliminate it. After the engine is started,
pay attention to all readings of gauges on instrument panel and keep the engine run idly, at this
point engine oil pressure gauge should indicate pressure immediately. Do not run the cold
engine at high speed, keep the engine run idly for a while to warm the engine up but idling time
should not be too long.
(3) Use starting aid to start the engine in cold weather. By controlling the relay to put heating
equipment into work, the engine can be successfully started in -30
o
C environment.
19 Run the Engine
(1) After the engine is started, firstly let it run idly for several minutes, and then increase the speed
to 1000~1200r/min and partially load the engine. Do not run the engine in full load and high
speed unless coolant temperature is higher than 60
o
C and engine oil temperature is higher than
50
o
C. The load and speed should be increased gradually, try not to load or unload abruptly.
(2) In the 60h run-in period (First 3000km), the engine is only suitable for moderate duty work and
under, and no towing operation.
(3) Slow down when traveling on a slope, and long-term high torque operation is inadvisable. It is
also inappropriate to keep the engine at low speed and low load, otherwise failure like
lubricating oil carry-over may occur.
(4) It is allowed to run the engine at rated power and rated speed for normal use, but only no more
than 20min is allowed for overload running (105% rated speed or 110% rated power). Only
idling for 1~2min after unloading should the engine be shut down.