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Charging  the  System - TM-5-4120-259-15_75
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TM-5-4120-259-15 Air Conditioner Horizontal Compact 9 000 BTU Trane Models Manual
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Disassembly - TM-5-4120-259-15_77
(4) (5) tubing  for  brazing  according  to  para- graph 96. Insert the system suction line into the (6) compressor   suction   connection   and secure  compressor  as  shown  by  fig- ure 28. (7) Slide  the  system  discharge  line  over TM  5-4120-259-15 the discharge connection of the com- pressor. Flow   nitrogen   through   the   system and   compressor   during   the   brazing operation  as  described  in  paragraph 96. Evacuate and charge the system ac- cording to paragraphs 95 and 97. Section III. EVAPORATOR FAN MOTOR 100.  General The  evaporator  fan  motor  is  a  1/3  horse- power  motor  located  in  the  upper  or  evapo- rator  portion  of  the  air  conditioning  unit,  and drives   the   impellers   of   the   evaporator   fan assembly  to  circulate  air  over  the  evaporator tils  and  discharge  it  through  the  openings  in the   front   of   the   unit. 101. Evaporator Fan Motor a. Testing  and  Removal.  Test  and  remove the  evaporator  fan  motor  as  shown  by  figure 16. b. Disassembly. (1)   Remove   nuts and    through-bolts which   secure   end   shields   b   stator frame.  Remove  right  end  plate  from the  stator  frame. Note. Mark the end plates and stator frame prior to diaaasembly to facilitate matching of mating parts during reassem- bly. (2)  Remove  rotor  assembly  with  left  end shield attached. (3)  Remove  left  end  plate. (4) (5) (6) Remove  the  washers,  bearings  and slingers  from  the  shaft  of  the  rotor assembly. Tag  and  disconnect  the  leads  of  the stator assembly from the motor ther- mal  protector  and  connector  and  re- place  these  items  if  necessary. Replace  stator  assembly  as  necessary. c.  Cleaning,  Inspection,  and  Repair. (1) (2) (3) (4) Clean   all   metal   parts   with   an   ap- proved   cleaning   solvent   and   dry thoroughly  with  compressed  air  and a clean cloth. Rotate  bearings  and  inspect  for  any wear. Inspect the rotor assembly for a bent shaft. Replace a defective rotor. Inspect  all  other  parts  for  defects  or damage.   Replace   all   unserviceable parts. d.   Testing.   Test   the   stator   assembly   for short  circuits  as  instructed  in  TM  5-764. e. Reassembly.  Reassemble motor in reverse order  of  disassembly. f.   Installation.   Install   motor   as   shown   by figure  16. Section IV. CONDENSER FAN MOTOR 102.  General The  condenser  fan  motor  is  a  1.5  horse- power motor located in the lower or condenser portion of the air conditioning unit, and drives the impellers of the condenser fan assembly to circulate air over the condenser coils and dis- charge  it  through  the  openings  in  the  bottom of   the   unit. 103.  Condenser  Fan  Motor a. On-Equipment  Test. (1) (2) Disconnect  the  leads  from  the  con- denser   fan   motor   as   described   in figure  17. Test   the   condenser   fan   motor   for continuity   and   insulation   resistance as  instructed  in  TM  5-764. 57

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