ARMY TM 9-6115-639-13 AIR FORCE TO 35C2-3-386-51 MARINE CORPS TM 10155A-13/1   4-14.  HOURS METER MAINTENANCE This task covers removal, inspection, and installation. INITIAL SETUP Tools: Equipment Condition: Tool Kit, General Mechanic’s Automotive Generator set shut down (Para. 2-9) (Item 2, App. B, Sect. III) Battery cables disconnected Cable disconnected for SLAVE RECEPTACLE A.    REMOVAL. 1. Turn   quarter-turn   fasteners   (1,   Figure   4-5)   to unlock and open control panel (2). 2. Tag and disconnect electrical wiring from the rear of HOURS meter (3). 3. Remove HOURS meter (3) from control panel (2) by removing two screws (4), lockwashers (5), and nuts (6). B.    INSPECTION. 1. Inspect HOURS meter for corrosion and obvious damage.  Inspect for broken glass. 2. Inspect  electrical  wiring  for  cuts,  crimps,  bare wire,  or  other  damage.    Ensure  connectors  are securely attached. 3. Remove   and   replace   any   component   that   is damaged  to the extent that it will effect the safe operation of the generator set. Figure 4-5.  HOURS Meter C.    INSTALLATION. 1. Mate  HOURS  meter  (3,  Figure  4-5)  to  control panel    (2).        Secure    using    two    screws    (4), lockwashers (5), and nuts (6). 2. Connect  electrical  wiring  to  the  rear  of  HOURS meter (3). 3. Close  control  panel  (2)  and  lock  in  place  using quarter-turn fasteners (1). 4-34