TM 5-6115-593-12 TO 35C2-3-463-1 TABLE 3-2.  OPERATOR/CREW PREVENTIVE MAINTENANCE CHECKS AND SERVICES NOTE: Within designated interval, these checks are to be performed in the order listed. B-BEFORE A-AFTER D-DURING B D A 1 o Batteries and Check batteries for elec- Cables are loose related items trolyte level and check for Electrolyte level low security.  Ref par.  2-13C. 2 o Muffler and Inspect exhaust installation Rain caps are stuck exhaust for condition, security, and closed. leakage.  Check that rain caps move freely. 3 o Ground Terminal Check for proper ground Unit is not grounded connection 4 o o Controls and Inspect for damage and loose instruments mounting.  Operate press-to- Engine Panel test indicator.  Check the following for proper operation. Battery charging volts. Battery charging ammeter green portion of scale. Fuel level gauge. Coolant temperature gauge 180 to 200 F (81 to 93 C). Oil Pressure Gauge 30 to255 psi (2.1 to 3.5 kg/cm ). Generator Panel AC Voltmeter 120/208, 240/416 volts* AC Ammeter Not to exceed 100% Kilowatt Meter Not to exceed 100% Frequency Meter 50-60 Hz* 4 o Fault Indictors All lamps out during opera- tion.  Check lamp operation using press to test switch. * These values are nominal, refer to paragraph 1-10 for permissible voltage or frequency operating range for unusual installations. INTERVAL ITEM NO. ITEM TO BE INSPECTED EQUIPMENT IS NOT READY/ AVAILABLE IF: PROCEDURES CHECK FOR AND HAVE REPAIRED OR ADJUSTED AS NECESSARY 3-4