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SYMPTOM INDEX - TM-3-4230-218-30P_14
Table  2-1. Direct  Support  Troubleshooting  -  Continued - TM-3-4230-218-30P_16

TM-3-4230-218-30P Decontaminating Apparatus: Power-Driven Portable Type A/E32U-8 NSN: 4230-01-153-8660 Manual
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TM 3-4230-218-30&P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 2. BURNER WILL NOT EXTINGUISH WHEN THERMOSTAT SELECTOR SWITCH IS SET TO OFF (OPEN MAG VALVE LIGHT IS OFF). Step  1. Check  that  magnetic  valve  is  not  stuck  open. a. Tag   and   disconnect   fuel   supply   line   (1)   from   burner   (2).   Place fuel  supply  line  in  any  available  metal  container. b. Disconnect  burner  spark  plug  lead  (3)  from  spark  plug  (4)  and position  as  far  away  from  container  as  possible. c. Connect  all  fuel  supplies  and  water  inlet  and  outlet  hoses  to unit.   Refer  to  TM  3-4230-218-12&P  for  starting  procedures. d. Start  the  unit  and  verify  that  fuel  does  not  flow  from  supply line  into  container. e. Immediately  shut  unit  down. f. If   fuel   flows,   replace   valve   (refer   to   page   2-52). If  magnetic  valve  is  not  stuck,  proceed  to  step  2. Step  2. Check  for  leaking  or  stuck  check  valve. a. Operate  unit,   turn  FUEL  VALVE  counterclockwise  1/4-1/2  turn. b. Shut  unit  down,  let  heater  fuel  can  remain  installed  and  FUEL VALVE  turned  1/4-1/2  turn. c. Disconnect  return  line  from  rear  of  burner. d. Place  open  end  of  return  fuel  line  in  suitable  container. 2-3







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