TM-9-2320-387-10 HMMWV Operator Manual Download
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49 Weekly Batteries b. Electrolyte should be (Cont’d) filled to the level/split ring in the battery filler opening (vent). If fluid is low, fill with distilled water to split ring (appendix D, item 7). If fluid is gassing (boiling), notify unit maintenance. NOTE Water in battery box can be caused by debris plugging battery box drain holes. If water is present, clean debris from battery box drain holes. c. Check battery box for cor- rosion or water on bottom of battery tray. DRIVER 50 Weekly Weapon a. Inspect weapon station a. Hatch or hinges Station hatch and hinge for bends, inoperable. cracks, warped, or damaged areas. b. Inspect brake for ease b. Brake does not of operation. operate. c. Inspect gunner’s sling c. Sling is torn, for tears, frays, or damaged shows wear, or hook. hook is damaged. DRIVER 51 Weekly Tiedowns a. Inspect stored equipment footman loops for presence and security of mounting. Inspect straps for tears or frays. b. Inspect stowage brackets, footman loops, and tiedowns for security of mounting, damage, and missing components. Table 2-2. Preventive Maintenance Checks and Services (Cont’d). Item No. Interval Not Fully Mission Capable If: Location Item to Check/ Service Crewmember Procedure TM 9-2320-387-10 2-58 Change 1