c.  Installation. CAUTION When installing the start-stop switch be certain that all wire leads are re- turned  to  the  correct  terminals.  If these  instructions  are  not  followed, serious damage will result. (1)  Position  start-stop  switch  in  position  on the control panel and secure with washer and nut. (2) Reconnect all leads. d.  Testing.   Test  with  a  multimeter  for  con- tinuity of switch contacts. 4-29.  Battery   Charging   Ammeter   (M3). CAUTION When working inside the control pan- el, disconnect plug P1 to prevent bat- tery voltage arcing. a. Removal. Refer to figure 4-24 and the follow- ing instructions to remove the battery charging am- meter. (1)  Tag  and  disconnect  electrical  leads  from the battery charging ammeter. (2) Remove nuts, washers, and shield securing the battery charging ammeter to the control panel. (3) Remove ammeter. b. Cleaning, Inspection and Repair. (1)  Carefully  and  thoroughly  clean  the  exte- rior  of  the  battery  charging  ammeter  with  a  clean lint free cloth. (2)  Inspect  the  battery  charging  ammeter  for signs  of  burned  areas,  damaged  threads,  loose  or corroded  terminals,  and  for  chipped  or  broken  glass. c. (3) Replace a damaged or defective ammeter. Installation. CAUTION When installing the battery charging ammeter,   be   certain   that   all   wire leads are returned to the correct ter- minals.  If  these  instructions  are  not followed, serious damage will result. (1)  Position  the  battery  charging  ammeter  in place  on  the  control  panel  and  secure  with  shield, washers, and nuts. (2) Reconnect all leads. d.  Testing.   Test   battery   charging   ammeter leads with a multimeter for continuity. TM 5-6115-332-14 P-8-614-14 TO  35C2-3-424-1 4-30.   Emergency   Stop-Run   Switch (S6). CAUTION When working inside the control pan- el, disconnect plug P1 to prevent bat- tery voltage arcing. a. Removal. Refer to figure 4-24 and the follow- ing instructions to remove the emergency stop-run switch. (1)  Tag  and  disconnect  electrical  leads  from the emergency stop-run switch. (2) Remove nut and washer (from the front of the control panel) securing the emergency stop-run switch to the control panel. (3)  Remove  emergency  stop-run  switch. b. Cleaning, Inspection and Repair. (1) Clean the emergency stop-run switch with a clean lint free cloth. (2)  Inspect  switch  for  signs  of  burned  areas, loose or corroded terminals, cracks, or thread dam- age. (3) Inspect switch for proper operation. (4)  Replace  a  defective  emergency  stop-run switch. c. Installation. CAUTION When installing the emergency stop- run  switch,  be  certain  that  all  wire leads are returned to the correct ter- minals.  If  these  instructions  are  not followed, serious damage will result. (1) position the emergency stop-run switch in place on the control panel and secure with washer and  nut. (2)  Reconnect  leads. d.  Testing.   Test  leads  with  a  multimeter  for continuity. 4-31.   Panel   Lights   Switch   (S7). CAUTION When working inside the control pan- el, disconnect plug P1 to prevent bat- tery voltage arcing. a. Removal. Refer to figure 4-24 and the follow- ing instructions to remove the panel lights switch. (1)  Tag  and  disconnect  electrical  leads  from the panel lights switch. 4-51