Operation and Maintenance Manual of WP13C Series Diesel Engines
Weichai Power Pursuit of Excellence
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exhaust pipe or supercharger exhaust port sprays oil mist for 15sec. Remove the pipe of oil seal oil, and
seal all
exposed pipe ports of the diesel engine with plastic covers. Apply antirust oil on the unpainted
surfaces (excluding diesel engine monitor, rubber pipe and diesel engine warning signs) of diesel engine.
Wrap the diesel engine with a plastic bag, and place the diesel engine in a well ventilated dry storeroom.
4.2 Oil seal oil for diesel engine
Table 5 Oil seal oil of diesel engine
S/N
Name
Specification (code)
1
Oil seal oil for fuel system
Spindle oil
2
Oil seal oil for intake/exhaust pipe
Spindle oil
5. Operation requirements of diesel engine
5.1 Unpacking of new diesel engine
After opening the diesel engine package, the user shall check the diesel engine and its accessories
according to the packing list, check the diesel engine surface for damage, connecting parts for looseness,
and then carry out the following:
a. Wipe the antirust layer of exposed parts and apply the anticorrosive agent;
b. Drain the oil seal oil in the fuel filter and fuel system parts (starting without draining the oil seal oil
in the fuel system is also allowed, but only after the oil seal oil in the fuel system is used up and
normal diesel oil supply is available, running the engine with increased load is allowed).
However,
the user shall pay attention to that the oil seal period of diesel engine is 1 year, after this period,
please check and take necessary supplement measures.
c. Rotate the flywheel and spray solvent into the air inlet pipe until the oil seal oil in the cylinder is
drained;
d. Spray solvent to the intake/exhaust holes of supercharger until the oil seal oil in the cylinder is
drained;
e. Add oil to the oil sump according to the instruction;
f. Add coolant to the diesel engine cooling system. The coolant shall be fresh water after softening
process or coolant containing antifreeze additives. It is forbidden to add seawater in the cooling
system.
5.2 Check and preparation before starting
a. Check the coolant level
Observe the coolant level through the upper hole on the expansion water tank. If the coolant is
insufficient, open the filling port cover and add the coolant. Never add a great quantity of coolant
when the engine is hot, or else the parts may be damaged. If there is no coolant in emergency cases,
cold water of which the temperature is not too low is allowed to be added slowly from the filling port
until the coolant flows out from the filling port.
b. Check the fuel level
c. Check the oil level
The oil level shall be between upper and lower scale marks of dipstick, add oil from the filling port if
necessary.
d. Check whether the accessories of diesel engine are reliably connected and eliminate the abnormality.
Check whether the circuits of the starting system are normal and whether the battery charging is
sufficient. Open the fuel tank valve, and drain the air in the fuel system by using the hand pump on
