Check The Return Oil in The Return Pipe of Hydraulic Diesel Generator

by Starlight Generator dieselgeneratortech

If there is return oil in the return pipe of a hydraulic diesel generator, what to do? Loosen the bleed screw on the fuel injection pump and fuel filter, pump the oil by hand until there are no bubbles in the spilled fuel, and then tighten the bleed screw. Pump oil again. When there is return oil in the return pipe, tighten the hand pump again. Loosen the nut of the high-pressure fuel pipe at one end of the fuel injector, pry up the plunger spring seat of the fuel injection pump, tighten the nut when there are no bubbles in the fuel injected from the nozzle, and then pry again several times. This is done cylinder by cylinder, and the generator set fills each fuel injector with fuel. At the same time, check whether the oil inlet pipe is leaking and whether the filter screen on the oil inlet pipe joint is blocked.

diesel generating set

If there is still no oil supply after troubleshooting, the oil inlet pipe and fuel pump should be checked. Remove the fuel injector, connect it to the high-pressure fuel pump, pry the plunger spring of the fuel injection pump, observe the spray, and remove and clean it if necessary. Check and adjust the fuel injection pressure to the specified range on the fuel injection test bench or replace the fuel injector coupling. When starting, the handle position should be pushed to no load. At speeds of around 700 to 900 rpm (r/min), the injection advance angle is too early or too late, even with a difference of 1800; The diesel engine injects fuel but does not ignite or stops after firing. The fuel system should use Bosch high-quality inline plunger or rotor high-pressure oil pump and injector, with higher fuel economy.

All turbochargers use holset turbochargers, and the HX40 generator set is equipped with an integral exhaust bypass valve to further improve low-speed response and power performance. The piston is made of aluminum alloy and is embedded with two corrosion-resistant high nickel cast iron ring grooves, which improves the service life of the piston and piston rings. The anodized piston crown of the generator set also helps to improve its durability. The oil filter requires a combination of full flow and bypass Frega brand, with almost perfect filtration effect and improved overall durability.

Since 1982, Dingbo Generator has been a generator set manufacturer qualified by the "National Internal Combustion Engine Quality Supervision and Inspection Center". The product quality has passed the IS09001 quality system standard certification. And obtained the qualification certificate for self-operated import and export. Over the years, Dingbo units have been widely used in all walks of life, and have won the network access qualification of the Ministry of Information Industry, the network access qualification of the Ministry of Radio and Television, the network access qualification of CNPC, the network access qualification of China Mobile, and the manufacturing qualification of marine units. In 2016, Dingbo was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Dingbo Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Dingbo generator VOLVO unit ranks the top three in the Asia-Pacific sales volume, and is the core OEM partner of Sweden Volvo in the Asia-Pacific region. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.