WEICHAI WP13 Series, Руководство по эксплуатации и обслуживанию

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WP13 Diesel Engine Series Operating Manual
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Turn the ignition key to the “Start” position and check whether the starter acts (if other reasons have
been eliminated).
(2) The rail pressure cannot be established (The starter can work normally, but it cannot
start the engine)
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Check whether the fuel tank has its level excessively low.
This reason may be ignored more easily, so take great care.
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Check whether the hand pump is working normally
Press the hand pump by hand to see whether it is normal.
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Check whether there is air in the low-pressure fuel way and if any, eliminate it (sometimes, the
low-pressure fuel way leakage is not obvious, so you need to check it carefully).
Exhaust method: mainly exhaust the air in the strainer. Loosen the vent bolt on the strainer and
press the hand pump on the strainer by hand until there is fuel flowing out continuously from the
vent bolt.
If the diesel engine still cannot be started after the low-pressure fuel way has its air completely
exhausted, then it can be judged that the high-pressure fuel way suffers from air invasion and you
should also exhaust the air in the high-pressure fuel way.
Exhaust method: loosen the high-pressure fuel pipe of a cylinder, and use the starter to drive the
diesel engine to run until there is fuel flowing out continuously from the high-pressure fuel pipe! (It
is not recommended that you often remove the joints of the high-pressure fuel pipe!)
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Check whether the high-pressure fuel way has any leakage
This usually can be seen obviously. Check whether the high-pressure fuel pipe has its joint nuts
loose, and if so, tighten the nuts.
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Check whether the fuel way is smooth, check whether the diesel fuel filter is blocked, and
replace the diesel filter element in time as suggested.
Inspection method: loosen the filter outlet bolts, use the starter to drive the diesel engine to run, see
whether there is diesel fuel spraying or flowing out, if only a small amount of diesel fuel flows out,
it can be determined that the filter element is blocked, and at this time, you need to replace the filter
element.
Vent bolt
Oil return hollow bolt
Hand pump
Starter