TM  5-6115-329-14 TO  35C2-3-440-1 CHAPTER 9 MAINTENANCE OF THE CONTROL PANEL ASSEMBLY Section I. PANEL  ASSEMBLY 9-1.  General The control panel assembly houses the necessary instruments and controls needed for the operation of the generator set. They include the voltage regu- lator,   terminal   board   assembly,   rectifiers,   volt- meter, load switch, rheostat, duplex receptacle, ter- minal load, percent load meter (DOD model MEP- 024A  only),  radio  interference  suppression  com- ponents, and wiring. All components are accessible by raising the hinged panel. 9-2.  Panel  Assembly Clean  all  parts  in  a  well-ventilated area.   Avoid   inhalation   of   solvent fumes and prolonged exposure of skin to   cleaning   solvent.   Wash   exposed skin thoroughly. Dry cleaning solvent (Fed.  Spec.^- P-D-680)   used   tO clean parts is potentially dangerous to per- sonnel and property. Do not use near open  flame  or  excessive  heat.  Flash point of solvent is 100° to 138°F. (38° to 59^OC.). a. Removal.  Refer to figure 6-2 and the follow- ing instructions to remove the control panel assem- bly. (1)  Tag  and  disconnect  leads  from  the  termi- nal  board. Section II. 9-3.  General Refer  to  TM  11-483  for  definitions,  purposes, source  and  methods  used  to  obtain  proper  radio suppression. 9-4.   Interference   Suppression   Com- ponents The  capacitor  mounted  in  the  control  panel  as- sembly is an isolated case, 0.1 microfarad, 600 volt, direct-current, 125° Centigrade capacitor. (2) Tag and disconnect leads from the control panel  assembly. (3) Remove screw from ground strap. (4)  Remove  screws,  washers,  and  nuts  secu- ring  the  control  box  assembly  to  the  control  panel mounting  bracket  and  remove  the  control  box  as- sembly. b.  Cleaning. (1) Clean the components of the control panel assembly using a clean lint- free cloth and dry low pressure compressed air. (2)  Clean  control  panel  with  a  clean  cloth dampened in cleaning solvent, Fed. Spec. P-D-680, and dry thoroughly. CAUTION Do not allow cleaning solvent to come into contact with components of the control panel assembly. c.  Inspection  and  Repair. Inspect   control panel for dents, breaks, distortion, or other damage. Straighten  dents  and  distortion.  Replace  a  control panel damaged beyond repair. d. Installation. (1) Position control box assembly in place on mounting bracket and attach with screws, washers, and nuts. (2) Attach ground strap. (3)  Reconnect  leads  to  control  panel  and  ter- minal board (fig. 6-2). CAPACITORS 9-5. Replacement of Suppression Com- ponents a. Removal. (1) Refer to paragraph 9-2 a. and remove con- trol panel assembly. (2)  Refer  to  figure  9-1  and  the  following  in- structions to remove radio interference suppression components. (a) (b) (c) Tag leads. Remove nuts securing leads. Drill out rivet and remove capacitor. 9-1