TM 5-3810-207-20/TO 36C23-3-37-12 (2) Inspect the temperature gage and thermostat sending unit for proper operation. Replace a defective temperature gage and defective thermostat sending unit. c. Installation.      Install   the   temperature   gage   and thermostat sending unit as illustrated on figure 125. 219.  Light Switch a. Removal.      Remove   the   carrier   light   switch   as instructed on figure 125. b. Cleaning and Inspection. (1) Clean  the  carrier  light  switch  with  a  cloth dampened     with     an     approved     cleaning solvent and dry thoroughly. (2) Inspect  the  carrier  light  switch  for  proper operation.  Replace a defective carrier light switch. c. Installation.      Install   the   carrier   light   switch   as illustrated on figure 125. 220 Fuel Gage a. Removal.  Remove the fuel gage as instructed on figure 125. b. Cleaning and Inspection. (1)    Clean the fuel gage with a cloth dampened with  an  approved  cleaning  solvent  and  dry thoroughly. (2) Inspect  the  fuel  gage  for  proper  operation. Replace a defective fuel gage. c. Installation.  Install the fuel gage as illustrated on figure 125. 221.  Speedometer a. Removal. Remove the speedometer as instructed on figure 125. b. Cleaning and Inspection. (1) Clean     the     speedometer     with     a     cloth dampened     with     an     approved     cleaning solvent and dry thoroughly. (2) Inspect the speedometer for proper operation. Replace a defective speedometer. c. Installation.  Install the speedometer as illustrated on figure 125. 222.  Windshield Wiper Switch a. Removal.  Remove the windshield wiper switch as instructed on figure 125. b. Cleaning and Inspection. (1) Clean  the  windshield  wiper  switch  with  a cloth dampened with an approved cleaning solvent and dry thoroughly. (2) Inspect    the    windshield    wiper    switch    for proper   operation.      Replace   a   defective windshield wiper switch. c. Installation.  Install the windshield wiper switch as illustrated on figure 125. 223.  Panel Light Assembly a. Removal. (1) Remove the lamp (TM 5-810-207-10). (2) Remove     the     panel     light     assembly     as instructed on figure 125. b. Cleaning and Inspection. (1) Clean the panel light assembly with a cloth dampened     with     an     approved     cleaning solvent and dry thoroughly. (2) Inspect the panel light assembly for proper operation.    Replace  a  defective  panel  light assembly. c. Installation. (1) Install the panel light assembly as illustrated on figure 125. (2) Install the lamp (TM 5-3810-207-10). 224.  Air Pressure Gage Assembly a. Removal.      Remove   the   air   pressure   gage   as instructed on figure 125. b. Cleaning and Inspection. (1) Clean  the  air  pressure  gage  with  a  cloth dampened     with     an     approved     cleaning solvent and dry thoroughly. (2) Inspect   the   air   pressure   gage   for   proper operation.  Replace a defective air pressure gage. c. Installation.      Install   the   air   pressure   gage   as illustrated on figure 125. 225.  High Beam Indicator Light Assembly a. Removal. (1) Remove the lamp (TM 5-3810-207-10). 170