Precautions For Installation Of Diesel Engine Front End Output; Chapter 3 Maintenance And Service For Wp12C Series Marine Diesel Engine; Maintenance Period Of Wp12C Series Marine Diesel Engine; Main Work To Be Done When Inspection And Maintenance Of - WEICHAI WP12C500 Operation And Maintenance Manual

Operation and Maintenance Manual
of WP12C Series Marine Diesel Engine
The internal cooling pipeline of diesel engine is already connected
properly before delivery of diesel engine from factory so no installation
is required. Use anti-corrosion material for the cooling water pipeline
reduce the elbows and length of the pipeline as much as possible. The
inner diameter of water pipe should not be less than that of connecting
component interface, so as to reduce the resistance of water pipeline
and enhance the efficiency of sea water pump.
2.5 Precautions for Installation of Diesel Engine Front
End Output
The front end output pulley of diesel engine can be used to drive
small-sized machinery, such as water pump, generator, etc. it should
be symmetrically arranged on two sides of the diesel engine and to
avoid the diesel engine crankshaft from being subjected to unidirectional
pull force. If it is necessary to drive large-sized machinery such as net-
hauling machine an elastic coupling must be used for connection and
the installation should be conducted according to the requirements for
aligning accuracy of different couplings, and in service, its coaxial
accuracy should be periodically checked to ensure the alignment of
coupling otherwise it will damage parts and components of diesel
engine.
Operation and Maintenance Manual
of WP12C Series Marine Diesel Engine
3.Maintenance and Service for WP12C Series
Marine Diesel Engine
The correct maintenance and service is an important link to ensure proper
and reliable operation of diesel engine and to prolong the service life of
diesel engine. The user should conduct the periodic maintenance and
service for the diesel engine according to the technical maintenance of this
chapter.
3.1 Maintenance Period of WP12C Series
Engine
First inspection (P) Diesel engine running for 30 50 hours
Level-1 maintenance (WD1) Diesel engine running for every 250 hours
Level-2 maintenance (WD2) Diesel engine running for every 500 hours
Level-3 maintenance (WD3) Diesel engine running for every 1000 hours
Level-4 maintenance (WD4) Diesel engine running for every 4000 hours
Note: The above maintenance period is calculated as the diesel engine running for
1500 hours per year and if operating time of a diesel engine is less than 500 hours per
year then its maintenance period shall be 0.5 time as much as the above maintenance
period if the operating time of a diesel engine is more than 1500 hours then its
maintenance period shall be l.5 time as much as the above maintenance period.
3.2 Main Work to Be Done When Inspection and Maintenance
of Diesel Engine
Table 3 Work to be done at time when performing maintenance of engine
Item P
Replace engine oil
Check water pump for leakage
Every time when engine oilis replaced
Replace oil filter
Check, adjust air valve clearance
Marine Diesel
WD1 WD2 WD3 WD4