Table 3-1.1. ORGANIZATIONAL  PREVENTIVE  MAINTENANCE  CHECKS  AND  SERVICES W-WEEKLY (40 HOURS) S-SEMIANNUAL (500 HOURS) ITEM NO. 1 2 3 4 5 6 M — INTERVAL H M-MONTHLY(1O0 ITEM TO BE INSPECTED Fluid  level a. Lubricat- ing  oil b. Hydraulic sump c. Cooling system Fuel  tank Fuel  fil- ters  and strainers Batteries Day tank Generator set HOURS) H-HOURS (AS INDICA PROCEDURES Check fluid levels. Check oil and add as required. (Fig.  3-1;  3-2) Check and add fluid as required. (Fig. 3-44) Check coolant level. Proper level is 2 inches below filler neck. (Para 2-3 c 2). Drain water and sediment from fuel tank. (Fig. 1-4; para 3-62b2) Note: In freezing  weather,  tank should be drained shortly after operation. Close drain cocks as soon as clean fuel begins to run out. Drain water and sediment from filters and strainers. Note: In freezing weather, fil- ters and strainers should be drained shortly after operation. Close clean (Fig. Check (Para check prior drain cocks as soon as fuel begins to run out. 1-1; para 3-6 and 3-9) battery electrolyte level. 3-9) Perform a hydrometer of the battery electrolyte to adding distilled water. Recharge or replace battery if specific gravity reading is low. (Para 3-82 b) Drain water and sediment from day tank. Note: In freezing weather, tank should be drained shortly after operation. Close drain cock as soon as clean fuel begins to run out. (Para 3-33 b) Inspect entire unit for loose, damaged, or missing parts; and unusual wear or deterioration. TED) ^- EQUIPMENT WILL BE REPORTED NOT READY (RED)  IF: Change 6 3-9