Is the Diesel Generator Set New or Old

Sep. 05, 2021

With the continuous development of industrial society and the increasing demand for electricity, diesel generator sets also sell well. So how do users choose diesel generator sets? How to identify whether the diesel generator set is new or old?


In the current market, due to the growing demand for diesel generator sets, the market space of generator sets is also expanding, and the demand for diesel generator sets is also rising rapidly. Facing the huge market space for the sales of diesel generator sets, some enterprises choose to use refurbished machines for their own interests, and then sell them to the majority of users, which has brought great confusion to many enterprises that buy diesel generator sets. In fact, when purchasing diesel generator sets, we should fully consider the comprehensive performance and economic indicators of diesel generator sets.


Next, Dingbo power will introduce how to purchase diesel generator sets and how to identify whether diesel generator sets are refurbished diesel generator sets.


Diesel generator set is a power supply equipment that uses diesel engine as prime mover to drive generator. Therefore, diesel engine is an important part of the whole generator set, accounting for 70% of the cost of diesel generator set. When users buy diesel generators, it is very important to understand the advantages and disadvantages of diesel engines. Most diesel engines of diesel generator set manufacturers are purchased separately, which is a link that some bad manufacturers often resort to fraud. According to the working experience of technicians of Dingbo company for many years, the old and new degree of diesel engine of diesel generator set is identified by using the method of one question, two observation and three test.


diesel power generator


First: ask. Ask about the purchase time, purpose, sales reasons, main parts for maintenance and replacement, and problems existing in use of the diesel engine, so as to have a more comprehensive understanding of the generator manufacturer.


Second: look. It depends on whether the model is outdated, the appearance of the diesel engine, and finally whether the parts are complete and damaged


Third: try. It is particularly important to test the generator set through commissioning. The specific steps are:


1) Turn the crankshaft to supply oil to the fuel injection pump. If the fuel injector has obvious injection sound, the performance of plunger pair and fuel injector is good; If there is no abnormal sound in the gear chamber, the gear is not seriously worn


2) Reduce the cylinder pressure and turn the crankshaft. When the pressure decreases, if the piston reaction force is large and the flywheel rotates faster, the wear of cylinder liner, piston and piston ring is small. At this time, the reading of the oil pressure gauge shall not be less than 1, otherwise the red buoy of the oil pressure gauge will rise rapidly, and the manual pressure buoy shall be laborious


3) Shake the flywheel up and down. The clearance between crankshaft main journal and bearing bush is small without noise or obvious shaking; If there is no rattle when turning the flywheel, the wear between the crankshaft connecting rod journal and the connecting rod bushing is not serious


4) The diesel engine is easy to start, with colorless or light gray exhaust, stable speed and no noise, indicating that the diesel engine is in good technical condition


In the market, some bad manufacturers use these imitation machines with the same appearance to fake famous brands and establish brands by means of fake famous brands, real numbers and printing fake factory materials, so as to greatly reduce costs. For non professionals, it is difficult to distinguish.


Dingbo reminds you: in the contract signed with diesel generator set manufacturer, the seller must ensure that the diesel engine is a brand-new and authentic power station diesel engine originally produced by a factory, and the model will not be tampered with. Otherwise, if it is false, it will be fined accordingly. Subject to the appraisal results of the after-sales service station of the factory, the buyer shall contact for appraisal, and the expenses shall be borne by the seller. It is worth noting that the full name of the manufacturer must be written clearly, adhere to this clause and be identified. If this is done, most bad manufacturers dare not take risks and will quote again. At this time, the quotation is often higher than the previous quotation.


Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. has a modern production base, professional technical R & D team, advanced manufacturing technology, perfect quality management system and remote monitoring Dingbo cloud service guarantee to provide you with a comprehensive and intimate one-stop diesel generator set solution from product design, supply, commissioning and maintenance.

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