Operation and Maintenance Manual forWP10 Series Four-valve Diesel Engine (China IV, V)
9
Loctite518
(upgraded
product based
on 510)
Applied on shining metal
surface for sealing
Mating faces of cylinder block and crankcase
Cylinder block front end face and the front
end cover
Connecting plate between cylinder block rear
end face and flywheel housing
Mating faces of oil filter seat and crankcase
Water pump rear cover and cylinder block
front end face
Flywheel housing connecting plate and
flywheel housing
Mating face between cylinder block and
engine oil cooler
Mating face between cylinder block and oil
filler port cover plate
4. Use and Operation of the Diesel Engine
4.1 Diesel engine unsealing
After opening the engine packing case, please check the engine appearance for damage and loose connection
before carrying out the following operations:
1) Wipe away the rust proof coat or anti-corrosion agent on the surfaces of exposed components.
2) Drain the sealing oil from the fuel filter and fuel system components (it is allowed to run the engine with load
only when the sealing oil is used up and the normal diesel fuel has been supplied).
Notice: The oil seal is only effective for one year, and when the time is up, please get your engine inspected and
take necessary remedies.
3) Rotate the flywheel and spray solvent into the intake pipe until the oil sealing oil in the cylinder is completely
removed.
4) Spray solvent into the turbocharger intake/exhaust ports until the oil sealing oil is completely removed.
5) Add lubricating oil of specified grade to the oil pan as required.If the oil containing running-in accelerant is
filled in the oil pan before delivery, it is suggested that the oil should be drained off after running for2,000km (or
50h) and then fill with new oil.
6) Base on the agreement between Weichai and user, if the coolant is already filled according to the user’s
requirement before delivery, please check the coolant performance when unpacking. If the antifreezing capability
is suitable for -30°C or -35°C, the PH value is 7~8 (neutral), the total hardness number is 5-15°d [9-15°f
(hardness)], the coolant can be used. Otherwise, drain the coolant and add new coolant which contains antifreeze
additives.
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