SECTION - V PERIODIC MAINTENANCE Weichai engines are designed for high reliability and long life. The engines are built to withstand marine operational environment. Preventive maintenance is the cost effective and economical way to reduce the operational cost of a diesel engine. If the preventive maintenance is carried out as per quality and schedule, downtime and costly breakdowns can be eliminated. The maintenance schedule is defined by the actual operating environment of the engine. The maintenance schedule given in table 5.1 is for ideal operating condition. In case of heavy dust or special situation, the frequency of the maintenance must be increased.
5.1 Safety precautions Before performing maintenance operations the engine operator must carefully read and understand the instructions provided in this section. The operator must be aware of and strictly follow the relevant operating instruction and safety precaution, accident preventive measures, and obey generally recognized industrial safety measures. 5.2 Importance of periodic maintenance Life of the engine is mainly based on quality of fuel, lube oil and coolant, routine inspection and maintenance and the hours of operation. Every routine inspection and maintenance is designed to monitor the engine health and performance in a desired interval and prevents unexpected breakdown.
Proper maintenance reduces the number of accidents due to poor machine performance and helps extend the life of the engine. Refer table 5.1 for recommended maintenance interval. 5.3 Replacement of parts and components As far as operation of parts and components is concerned, the customer must follow relevant specifications of the engine manufacturer and pay attention to relevant terms and conditions. If any parts and components are to be replaced during repair, then it is required to follow regulations concerning the replacement of parts and components specified by manufacturer.
It is allowed to use only genuine spare parts on the engineprocured from a reliable outlet of the engine manufacturer. If thecustomer or the service center has installed non-genuine spare parts and sub- assemblies, the supplier should take the responsibility and bear all cost damage to engine which may subsequently occur and damage and injury to persons and equipment within the legal scope of product warranty. CAUTION 27