Maintenance for Generator Sets
To ensure the correct operation of the generator sets and to prolong their service life, it is essential to carry out adequate maintenance specific to each of the systems in the equipment: mechanical motor, alternator, chassis, fuel tank, battery and control panel.
Maintenance should be performed on a regular basis and requires training, as well as specific tools and knowledge. Consequently, it should be done by qualified personnel with a sound knowledge of and respect for safety rules.
Likewise, the type of motor in each generator set – brand, model, function, power and whether it uses petro or diesel – and the environmental conditions determine the specific needs and maintenance protocols.
Types of Revisions
For all the generator sets – except the emergency sets, which require special maintenance – there are 3 types of revisions: sporadic, regular and extraordinary.
This is a basic check, which is very simple to perform and can be done by the generator set user. It consists of starting up the equipment in accordance with the instructions provided by the manufacturer. It should be carried out on a regular basis and takes a few minutes.
Regular and extraordinary revisions
The regular revisions should be carried out by suitably trained technicians (at Inmesol we facilitate this training to our clients) and the extraordinary maintenance is performed exclusively by qualified personnel from the Inmesol Technical Assistance Network.
Maintenance for Emergency Equipment
Given that the function of this type of generator set is to operate exclusively when there is a failure in the electricity supply network, it is important to change the following at least once a year:
Just like vehicle engines, the motors in generator sets have combustion chambers, pistons and different auxiliary systems: the cooling system (radiators and ventilators), the filtration system (air, oil and fuel), and the electrical system (responsible for turning the equipment on and off).
In the filtration system, the air, oil and fuel filters, as well as the fuel itself, must be replaced after a determined number of service hours. This is normally required once a year, but the timeframe varies according to the manufacturer and other factors. For example, in the case of the air filters, the replacement frequency depends on the concentration of dust particles in the environment surrounding the generator set. It is also important to remember that the motor must be cold before carrying out maintenance on the fuel filter to prevent the risk of fire.
For the electric system, the battery power must be checked regularly and the electrolyte level must be tuned, adding distilled water to compensate for inevitable evaporation. To verify the density of the acid solution, the technicians use a densimeter.
Inmesol works with various brands of motors. Each manufacturer details the particularities of their models and the corresponding specific recommendations in a Service and Maintenance Manual. Technicians should always have this to hand when they perform maintenance services and pay close attention to the recommendations.