Weichai WP12 Diesel Engines Service Manual (EN)

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Operation. and Maintenance Manual for Landking WP12 Euro Ill Series Diesel Engine WEICHAI Special Attention @ The engine operator must read the manual before attempting to operate the diesel engine, adhere to follow the operation and maintenance routine rules in this manual. @ The diesel engine has been tested strictly in accordance with the test specification before leaving the factory. It is forbidden to adjust the data of ECU to in- crease the power, otherwise all the warranties will be invalidated. @ Customers should not dismantle the precision components like ECU, common rail fuel pump and injector, otherwise all the warranties will be invalidated.

@ It is strictly forbidden to dismantle and impact rotor shaft of turbocharger as precision high — speed rotating part, otherwise all the warranties will be invalidated. @ There are strict demands on torque and turned angle for main bearing bolts and connecting rod bolt, loosing and dismantling is forbidden. The connecting rod bolt can be used only one time, otherwise all the warranties will be invalidated. @ Designation of engine oil and fuel filled in the diesel engine must comply with the regulations in the manual. er, They should be filtered by specified filter clean- Fuel should be settled for more than 72 hours.

You must confirm if the filled capital of the coolant and engine oil comply with requirements before driving. @ It is forbidden that the diesel engine works without air filter to prevent unfiltered air from entering into the cylinder. @ Before using a new diesel engine, 50 hours test run should be carried out. @ After the engine is cold started, the speed should be increased gradually. It is forbidden to run the engine in high speed suddenly and in idling for a long

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Operation and Maintenance Manual for Landking WP12 Euro Il Series Diesel Engine WEICHAI time. After running in high load, you should not stop the engine immediately (except special situation) , and you should run in low load about 5 ~ 10 min, then stop it. | @ After the engine is stopped, if the ambient temperature is lower than 0'°C and the coolant without antifreeze is used, the coolant in water tank and in the diesel engine should be drained off. @ The examining and repairing of all parts in electrical system should be carried out by specialized operator.

@ The examining and repairing of all parts in electrical control system should be carried out by specialized operator from our maintenance station. @ To prevent rust, oil seal is made before leaving factory. Generally, the oil seal period is one year. necessary One year later, the engine should be checked and adopted complement measures.

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