54
2920 7090 00
Instruction book
Ref Name
1
Air pressure switch
2
Solenoid valve
3
Pressure release valve
4
Adjusting screw, stopping pressure
5
Adjusting screw, pressure difference
Function
The adjustment of the maximum or stopping pressure of the compressor is effected by means of the air
pressure switch. The switch also controls the pressure difference between the maximum pressure (stopping
pressure) and the pressure at which compression is resumed (starting pressure).
Adjustment
Adjust the air pressure switch while it is pressurized.
Switch off the voltage before removing the cover of the switch; reinstall it after an
adjustment has been made and before the voltage is switched on again.
The
maximum pressure
is controlled by adjusting screw (4). Turn the screw clockwise to raise the
maximum or stopping pressure, counter-clockwise to lower it.
The
pressure difference
is adjusted by means of screw (5). To reduce the difference between the stopping
and starting pressures, i.e. to increase the starting pressure, turn the screw counter-clockwise. To increase the
pressure difference, turn the screw clockwise. The adjustment range is shown on the pressure difference
diagram
below.
Diagramme différence de pression MDR4-11bar
Ref Name
1
Starting pressure - bar(e)
2
Stopping pressure - bar(e)
Summary of Contents for LF 10
Page 1: ...Atlas Copco Industrial aluminium piston compressor LF 2 LF 3 LF 5 LF 7 LF 10 Instruction book ...
Page 2: ......
Page 12: ...10 2920 7090 00 Instruction book Power Pack with unloading valve Base mounted ...
Page 18: ...16 2920 7090 00 Instruction book Air flow and regulating system with DOL starter ...
Page 19: ...2920 7090 00 17 Instruction book Air flow and regulating system with Y D starter ...
Page 20: ...18 2920 7090 00 Instruction book Air flow and regulating system of trolley ...
Page 72: ......
Page 73: ......
Page 74: ......