Atlas Copco Industrial Cast Iron Piston Compressor CR10-TS-120GV

Warning: Switch off the voltage before removing the cover of the switch

Is the air pressure switch pressurized?

Reinstall the cover after an adjustment has been made and before the voltage is switched on again

Is the maximum pressure controlled by adjusting screw?

Turn the screw to adjust the maximum or stopping pressure

Is the pressure difference adjusted by means of screw?

Turn the screw to adjust the pressure difference

Sign off on the MDR4 Pressure Switch Adjustment

Retorque the cylinder to the head capscrews

Inspect the compressor valves for leakage or carbon build-up

Was it necessary to clean with a safety solvent?

Warning: This procedure should be performed by trained personnel only.

Is the pilot valve equipped with a hand-operated unload mechanism?

Turn the red handle 90 degrees to lift the plunger of the valve.

Did the air pressure from the pulsation dampers force down unloader plunger?

Turn handle 90 degrees further to return the plunger to its original position.

Did the pilot valve unload and load the compressor at the pre-set pressures?

Loosen handle and the two nuts.

Turn the adjusting screw clockwise to increase the maximum pressure.

Did the maximum pressure increase?

Note: Use a shorter interval in harsh conditions.

Pulley clamp screws or jamnut torqued?

Lubricant completely drained from the crankcase and replaced after initial 100 Hours of operation?

Belt tension checked every 160 Hourly / 1 Monthly?

Sign off on the maintenance procedure

Warning: 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 stopping pressure is controlled by adjusting screw

The pressure difference between starting and stopping is adjusted by means of adjusting screw

Upload a photo of the adjusted switch

Sign off on the MDR3 Pressure Switch Adjustment