TM 55-1930-209-14&P-19 Table 3-3.  Preventive Maintenance Checks and Services for ROWPU System (Continued) B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY (g)  Connect battery. (h)  Test alternator as follows using a multimeter: (1)  Remove battery cover. (2)  Set multimeter on 50 V scale (use 100 V scale if meter does not have 50 V scale). (3)  Connect positive (+) lead to alternator cable that comnnects to positive battery terminal. (4)  Connect negative (-) lead to alternator cable that connects to negative battery terminal. (5)  Start engine (TM 55-1930- 209-14 & P-3). (6)  Multimeter reading should be 24 to 28 V.  If not, replace alternator as described in removal procedure above. 8G Cooling System WARNING At operating temperatures, engine coolant Is hot under pressure.  It also contains alka- line materials harmful to eyes and skin. To avoid personal Injury check coolant level only when engine is stopped and radiator cap is cool enough to be touched with a bare hand.  Should engine coolant come in con- tact with eyes or skin, Immediately flush affected area with clean water and seek medical attention, if necessary. a.  Check coolant level when engine is cool. Engine coolant Inspect filler cap gasket Replace if dam- level is low. aged. Add coolant if necessary.  Install filler cap. 3-30    Change 1