Page 325 - Reciprocating Compressors Operation Maintenance
P. 325

3  f O  Reciprocating  Compressors:  Operation and Maintenance

                            TABLE 5-1    (CONTINUED)
                           TROUBLESHOOTING       CHART

                                                 t
                   The Problem       i               £   i
                                 !*•  !_,  ll    i,"" 1  al   I,    i I i
                                                 u 1
                                     Ag
                                         1.1
                                 11  |s |g Ss| is it     fe 1 b   «B § P  &t  a
                                   58
                                 mSm
                                 £•*                     ii ii fig _
                                 I! li li ii liii ii If III
         The Causes
         System demand exceeds rating  *  *       * *     *
         Discharge pressure above  rating  *  •  •            *    •
         System leakage  excessive  *  *                  «
         Intake pipe restricted, too small,
           too long               •   *                   *    *
         Intake filter  clogged   •   •                   •    *
         Valves worn or broken    .   .           •H  •H  •L   .
         Valves not seated  in cylinder  *  *     •H  •H  •L   *
         Valves incorrectly located  *  •         •H  •H  •L   *
         Gaskets  leak            *   •           •H  *H  •L   •
         Unloader or control defective                                  •
         Unloader setting wrong   .   .   .   *   *   *    .   .
         Piston rings worn, broken, or stuck  *  *  •H  •H  •L  *
         Cylinder (piston) worn or  scored  •  •  •H  •H  •L   *
         Rod packing  leaks       *   •                        •
         Safely valve leaks       *   *                    *
         Belts slipping           .   .
         Speed lower than rating  «   •
         Gauge defective              •   *        •       •
         Safety valve set too low             *        •
         Safety valve defective               *        •   *

         Control air pipe leaks           .   *
         Intercooler passages  clogged        *    •
         Intercooler leaks                                 •
         Cylinder head, intercooler dirty                      •    .
         Water quantity insufficient  •            •           *    *
         Water inlet temperature too high  *       .           .    .
         Water jackets or intercooler dirty        *           *    *
         Air discharge temperature too high                         *
          Intercooler pressure too high                             •
         Speed too high                                        •    *
         H (in high pressure  cylinder).
         L (in low pressure  cylinder).
   320   321   322   323   324   325   326   327   328   329   330