TM 5-6115-434-12 (2) Cleaning and inspection. (a) Clean  relay  with  filtered  compressed  air  or  wipe  with  a  clean  rag  moistened  with  an  approved cleaning solvent. (b) Visually inspect relay for corrosion, cracks, damaged threads or other evidence of damage. (3) Installation.  Install in reverse order of removal procedures. c. Relay (K16). (1) Removal.    Tag  and  disconnect  electrical  connections  and  bus  bar  from  relay.    Remove  four  screws  and eight washers from relay.  Remove relay. (2) Cleaning and inspection. (a) Clean    relay    with    filtered    compressed  air  or  wipe  with  a  clean  rag  moistened  with  an  approved cleaning solvent. (b) Visually  inspect  for  corrosion, cracks, damaged threads or other evidence of damage. (3) Installation.  Install in reverse order of removal procedures. d. Relay (K3S). (1) Removal.  Tag and disconnect electrical connectors from relay.  Remove four screws and eight washers from relay.  Remove relay. (2) Cleaning and inspection. (a) Clean  relay  with  filtered  compressed  air  or  wipe  with  a  clean  rag  moistened  with  an  approved cleaning solvent. (b) Visually  inspect  for  corrosion, cracks, damaged threads or other evidence of damage. (3) Installation.  Install in reverse order of removal procedures. e. Relay (KX4). (1) Removal.  Remove terminal post cover from relay.  Tag and disconnect electrical connections from relay. Remove four screws and eight washers from relay.  Remove relay. (2) Cleaning and inspection. (a) Clean  relay  with  filtered  compressed  air  or  wipe  with  a  clean  rag  moistened  with  an  approved cleaning solvent. (3) Installation.  Install in reverse order of removal procedures. f. Transformer (two used). (1) Removal.      Tag  and  disconnect  electrical  connections  to  transformer.    Tag  and  disconnect  electrical connection  passing  through  the  center  of  transformer.    Remove  four  screws  and  eight  washers  from  transformer. Remove transformer. (2) Cleaning and Inspection. (a) Clean transformer with filtered compressed air or wipe with a clean rag moistened with an approved cleaning solvent. (b) Visually inspect for corrosion, cracks, damaged  threads or other evidence of damage. (3) Installation. Install in reverse order of removal procedures. 3-63.  Receptacle Panel Assembly (fig. 3-21) Maintenance      procedures    for    components  mounted  on  the  receptacle  panel  assembly  consists  of  cleaning,  removal and replacement of damaged components.  Access to the receptacle panel assembly is obtained by removing sixteen bolts and sixteen washers from the perimeter of panel.  Carefully work the panel assembly out 'far enough to gain access to the component parts. Note Electrical   power   shall   be   shut   off   prior   to   performing   maintenance   on   the   receptacle   panel assembly. a. Panel Illumination Lamp. (1) Removal.    Tag  and  disconnect  electrical  connections  to  lamp  assembly.    Remove  nut  and  washer  from lamp assembly.  Remove lamp assembly. (2) Cleaning and inspection. (a) Clean lamp assembly with filtered compressed air, and an electricians brush or wipe with a clean rag moistened with an approved cleaning solvent. (b) Visually   inspect   lamp   assembly   for   corrosion,   cracks,   damaged   threads   or   other   evidence   of damage. (3) Installation.   Install   in   reverse order of removal procedures. b. Cold Weather Heater and Battery Activation Switch (two used). (1) Removal.  Tag and disconnect electrical connections to switch.  Remove two screws 3-75