Measuring Pressure

1 Check that the cock on the blue low-pressure hose and the cock on the red high-pressure hose on the pressure gauge stand are both closed.
2 Connect the blue low-pressure hose to the low-pressure side of the compressor.
3 Connect the red high-pressure hose to the high-pressure side of the compressor.
4 Start the engine.
5 At engine speeds between 1500 and 2000 rpm and when air temperature is 20° C (68° F), it should be possible to read the following pressures on the pressure gauge when the compressor is working:
Low-pressure side: 1-3 bar
High-pressure side: 10.514.5 bar