Boss Generator DY8500

1. The fuel filter should be cleaned often to keep the engine running at maximum performance.

2. The recommended time period for cleaning the fuel filter is 6 months or 500 hours of operation.

a. To do this first drain the fuel from the fuel tank.

b. Loosen the small screws on the fuel switch and remove the fuel filter from the port. Use diesel fuel to clean the fuel filter. Also, remove the fuel injector and clean the carbon deposit around it. The recommended time period for this is 3 months or 100 hours.;

Take the oil cover out. Take off the oil drain plug when the diesel engine is still hot. Be careful of hot oil and hot engine as you may bet burned. The bolt is located at the bottom of the cylinder. After draining the oil, put the bolt back and tighten it. Then fill with the proper engine oil to the proper level.;

2-3.2 How to open the case door/cover

(1) Open the case door: turn the handle counterclockwise and open the door. Do these checks daily.

(2) Loosen the outer cover bolt of the air filter and outer cover of the oil nozzle, and then check the air filter.

(3) Check the outer cover of the oil nozzle. Loosen the butterfly nut and open the outer cover

Check and fill enough engine oil

Check and screw each fastened part

Adjust the gaps of air intake and air exhaust gate

Check and screw each fastened part

Adjust the gaps of air intake and air exhaust gate

Check electric brush and slide ring