2.6.2. Adjustment of idling of the engine
Establish by the adjusting screw of amount of mix the frequency of rotation of a bent shaft idling within 900±50 rpm (at turn of the screw clockwise the frequency of rotation decreases).
Idling the content of carbon monoxide (SO) in the fulfilled gases has to be 0,5±0,2%. If it is less, then it can be caused by the following reasons:
- leakage of an inlet path of the engine (after the air consumption measuring instrument);
- malfunction of the valve of additional air supply;
- malfunction of the regulator of pressure of fuel;
- partial contamination of the fuel filter;
- discrepancy of pressure of forcing of the fuel pump to nominal rate;
- malfunction of an electronic control unit;
- violations in operation of electronic devices of system of injection of fuel (for their check use the control Bosch 0.684.100.202 device).
WITH can be the reasons of the increased contents:
- insufficient tightness of the masloizmeritelny probe;
- the increased oil level in an oil case;
- leakage of inlet or final valves;
- malfunction of the measuring instrument of a consumption of air;
- not switching off of a starting nozzle;
- violations in operation of electronic devices of system of injection of fuel (for their check use the control Bosch 0.684.100.202 device);
- leakage of nozzles.