TM 5-3895-374-24-2FEBRUARY 1993TROUBLESHOOTINGGUIDEThis section on trouble shooting is provided as a guide for pinpointing in a hurry, the cause of any problem connectedwith the baghouse, thereby cutting downtime and maintenance costs.The following charts list the most common problems, which may be found in a baghouse air pollution control system, andoffers general solutions for the problems. In checking out any malfunction, check out the obvious and simplest steps first.There are a number of instances in which the solution is to consult the manufacturer.In either case, the key to good trouble shooting is a good maintenance program which may eliminate possible downtime.It is also very important to maintain a good inventory of recommended spare parts.TABLEONEJETPULSETROUBLESHOOTINGTROUBLEPOSSIBLE CAUSEREMEDYUnit does not operateNo power to unitCheck input voltageBlown fuseLocate & correct shortcircuit. Replace circuit.Timer operation okay butBroken power lead toCheck continuity of allpilot valves inoperatevalvevalvesBroken lead from commonCheck continually of allto pilot valvepilot valve repair asnecessaryTimer operation okay but Open valve circuitCheck continuity to openone pilot valve not functioningvalve repair as necessaryFaulty output circuitCheck timer outputvoltageFailure of pilot valveRelieve air pressure;disassemble pilot; cleanand repairTimer and pilot valueFailure of diaphragmRelieve air pressure;function but diaphragmvalvedisassemble valve;does notclean and repairOne pilot valve stays onFaulty output circuitRemove power from timer;continuouslyif valve closes, changetimer sequence board;if not, clean and repairvalveThe timers have a one year warranty on parts an workmanship. If timer fails to operate, do not attempt to service.Contact Griffin Environmental Co., Inc. immediately.NOTE:If collector operation is critical to plant operation, a timer sequence board shouldbe carried as a spare.page 3-698
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