Generator Test procedure Step 1: Check the generator outer wires each site with or without break, wrong connection, short circuit, and measure whether the battery voltage B + point with a voltmeter. Step two: the key to the door down with the "on" position, but do not start the engine, this time with a voltage meter to measure whether the voltage D + points and see the charging indicator bright. The third step: start the engine, with a voltmeter engine B + point voltage, should reach the following values ??above 12V system voltage of 13V while subtraction throttle, Voltage 24V system voltages above 27V Step four: Open the partial load, such as lights 12V System voltage is 13V or more at the same time subtraction throttle, Voltage 24V system voltage is more than 27V changes have moderate Step five: Open the air conditioning, lights and other major electrical system voltage of 12V or more at the same time plus or minus 13V throttle, Voltage 24V system voltage of 27V When there is a greater degree of change over to the third step, no voltage output generator generator maintenance, may take the following way to check, for a generation generator excitation D + points such as 27 series, 23 series, 29 series, 19 series battery positive lead from a 2.5mm2 wire, after starting the engine, with the other end of the instant click D + point (time 1S or less), then the voltmeter B + point whether the voltage output, if so, from the third to the first step to start checking five steps, while judging the vehicle charging indicator lines are open circuit (usually damaged lights, dashboard lever fittings loose Zhongshan Cummins generator maintenance, circuit breaker), the absence of voltage output, there is not a power generator failure . Domestic units brands Zhongshan generator maintenance factory, in fact, the quality of China-made generator is good, and many like Cummins, Deutz, Daewoo, MTU, Steyr has a joint venture factory in China so that the choice of when you can choose these joint venture brands. Domestic brands are: Shangchaigufen, Guangxi Yuchai, Weichai, Steyr, Dongfeng Cummins, Chongqing Cummins, Weichai Deutz, Deutz Dalian, Hangzhou Steyr, Weichai Steyr kaicong Pu, Shanghai Shen move, Shanghai to stem etc. 1. Shangchaigufen - Shanghai Diesel Engine Co., Ltd., formerly known as Shanghai Diesel Engine Factory, the company designed and manufactured China's first diesel engine in 1958, 6135, opened a Chinese secondary bore diesel engines first of its kind, laid the foundation of the company's position in the industry. The company currently has a D114, C121,135 (G128) and other three series diesel engines, power full coverage of 60-420 horsepower. 2, Yuchai - Yuchai engines have car, six categories of 27 series over 2000 varieties of micro marine, engineering machinery, agricultural machinery, power generation equipment and other diesel-powered, light, medium and heavy-duty multi-cylinder diesel engine, power covering 6 ~ 2500KW generator maintenance Zhongshan where, formed the most abundant and most complete spectrum of diesel engines, the full range of products with high power, high torque, high reliability, low fuel consumption, low emission, low noise, fit and strong convenient features and improve service and become the preferred power major domestic automobile, engineering machinery, agricultural machinery and so on. Engineering machinery products with earthmoving machinery and pile driving machinery led, which has a hydraulic excavator of 0.8 to 220 tons 51 series of 144 varieties of combinations to structure compact, reliable, energy efficient known, the performance indicators have reached international advanced level. Zhongshan generator maintenance company, the diesel generator (certified), Huangpu generator maintenance provided by the Electrical and Mechanical Equipment Co., Ltd., Dongguan Shangwang diesel. Dongguan Shangwang diesel Electrical Equipment Co. (www.dongguanfadianji.cn) is an industry leader in Dongguan, Guangdong, diesel generator sets, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the diesel generator leadership with the staff warmly welcome all inquiries negotiations to create a better future for diesel generators.