FORM 5S1408 AIR COMPRESSORS 2433 2570 Maintenance 5815 CAUTION:    ALWAYS    DISCONNECT    THE    POWER SOURCE AND DE-PRESSURIZE THE ENTIRE SYSTEM  BEFORE  ATTEMPTING  TO  SERVICE  THE AIR COMPRESSOR OR ANY COMPONENT UTILIZED IN  THE  SYSTEM.    If  the  power  disconnect  is  out-of- sight,  lock  It  In  the  open  position  and  tag  to  prevent unexpected application of power. Periodic  inspection  of  the  air  compressor  should  be  a mandatory   part   of   normal   in-plant   inspection   tours   of your   system.      Occasionally   it   will   be   necessary   to replace worn or damaged parts.  Damaged or worn parts are  a  potential  threat  to  personal  safety  and  property; under  no  circumstances  should  damaged  or  worn  parts be re-used. If  compressor  fails  to  pump  air  or  seems  slow  in  filling, remove  valves  and  seats  and  clean  thoroughly.    After cleaning;  exceptional  care  must  be  taken  to  replace  al parts  in  exactly  the  same  positions.    All  joints  must  be tight or the compressor will not function properly.  When valves are replaced and connections tight, unit should fill to 80 PSI within 10 minutes (discharge line shut off). CLEANING As  with  all  systems,  it  may  become  necessary  clean  them periodically to keep them in peak operating condition.  Any cleaning   methods   used   should   be   suitable   with   the   air compressor and components which make up the system. LUBRICATION NEVER  ALLOW  OIL  LEVEL  TO  FALL  MORE  THAN  1/8" BELOW  THE  FULL  LEVEL.    The  type  of  oil  user  depends on operating conditions and surrounding temperature at the point  of  installation.    For  proper  oil  viscosity,  refer  to  the chart under Operation page 5. OIL    CHANGE:    Check    oil    level    daily.        In    normal    or intermittent  duty  installations  where  unit  does  not  operate extensively,   change   oil   every   200   hours   or   60   days, whichever   occurs   first.      Under   extensive,   or   continuous operation,   or   where   hot   humid,   or   dusty/dirty   conditions exist,  oil  change  interval  should  be  sharply  reduced  to  100 hours or 30 days (or less), whichever occurs first. Maintenance Time-Check Chart Procedure Daily Weekly Monthly Yearly CHECK OIL LEVEL - SEE LUBRICATION ABOVE. CAUTION! DO NOT OVERFILL X GIVE COMPRESSOR OVERALL VISUAL CHECK X DRAIN MOISTURE ACCUMULATION FROM THE AIR RECEIVER X CHECK THE AIR DISTRIBUTION SYSTEM FOR AIR LEAKS X CLEAN COOLING SURFACES OF COMPRESSOR INTER- COOLER AND AFTERCOOLER X OPERATE SAFETY VALVES X REPLACE OR CLEAN INTAKE FILTER ELEMENT X INSPECT OIL FOR CONTAMINATION AND CHANGE IF NECESSARY X CHECK BELTS FOR CORRECT TENSION AND ALIGNMENT X CHECK PULLEY CLAMP BOLTS AND SET SCREWS FOR TIGHTNESS X INSPECT VALVE ASSEMBLIES XX INSPECT CUSHION CHAMBER AND DISCHARGE LINE FOR EXCESSIVE CARBON ACCUMULATIONS X INSPECT PRESSURE SWITCH DIAPHRAGM AND CONTACT POINTS X INSPECT CONTACT POINTS IN MOTOR STARTER X SERVICE ELECTRIC MOTOR s s s s SERVICE GASOLINE ENGINE s s s s X CHECK MORE OFTEN IF EXTREMELY DIRTY CONDITIONS EXIST. XX EVERY 6 MONTHS s PER MANUFACTURER'S RECOMMENDATIONS - 8 -