Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont’d)

Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont’d). ITEM NO. INTERVAL ITEM TO BE INSPECTED PROCEDURES 27 Annually Air-Intake Test CDR valve (para. 3-9). CDR fails water System manometer vacuum test. 28 Annually Electrical Inspect all wiring and wiring harnesses Broken, frayed, split Wiring for frays, splits, missing insulation, or wires or harness. poor condition. 29 Biennially Transmission Change fluid every 12,000 mi Metal particles are found. (19,300 km) or biennially, whichever occurs first (para. 5-2). Inspect transmission drainplug for metal particles. TM 9-2320-387-24-1 Change 1 2-25 NOT FULLY MISSION CAPABLE IF: CAUTION Use Dexron^® III for filling trans- mission. Failure to do so may cause damage to transmission. NOTE Replace transmission oil filter each time transmission is drained. Fill transmission with 7.7 qt (7.3 L) of Dexron^® III. DIPSTICK