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"Oil-Less” Medical Air                                                              Medical Systems


               4.0 Troubleshooting



                Problem                    Possible Cause                  Solution
                Wrong direction of rotation   Motor wired incorrectly      Switch motor leads

                Low discharge pressure     System piping leaks             Repair leaks

                                           Defective pressure gauge        Replace gauge

                                           Pressure switch open            Adjust or replace

                                           No power to solenoid            Check electrical connections

                                           Belts slipping                  Adjust tension

                                           Intake filter clogged           Clean or replace

                                           Gasket leaks; piston ring wear   Replace gaskets and rings
                Compressor cycles too often   System undersized            Contact BeaconMedæs

                                           Incorrect pressure setting      Adjust pressure switch

                                           Faulty pressure switch          Replace switch

                                           System piping leaks             Repair leaks

                                           Check valve or line to receiver   Replace if necessary
                                           is leaking or plugged

                                           Both dryers on line             Valve off one dryer

                                           Water in air receiver           Drain air receiver
                Compressor won’t shut off   Pressure switch out            Adjust or replace
                                           of adjustment or faulty
                Excessive belt wear        Belt tension                    Adjust tension

                                           Belt alignment                  Realign compressor &
                                                                           motor sheaves
                Abnormal noise             Mounting bolts loose            Tighten bolts

                                           Belt tension                    Adjust tension

                                           Worn piston or rider ring;      Replace
                                           broken valve parts

               Note: For air dryer troubleshooting, see Appendix A.













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