TM-9-2320-280-10 HMMWV Operator Manual Download
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TM 9-2320-280-10 Change 1 2-101 Item No. Interval Cr ewmember Procedure Not Fully Mission Capable If: Table 2-2. Preventive Maintenance Checks and Services (Cont’d) Location Item to Check/ Service DRIVER 60 Weekly Environ- a. Check security of A/C ment heater control box mounting. Control b. Check Heating, Ventilation System and Air Conditioning (HVAC) filter (para. 3-27) for dirt or debris. Clean filters of dirt and debris that would restrict air flow. NOTE Insufficient cooling could be a result of loss of R12. This is a gas, therefore leaks cannot be detected. If lines or fittings are suspect, the vehicle is to be considered non-mission capable and sent to Direct Support for further inspection(s). c. Inspect exposed HVAC system ducts, hoses, fitting lines, vents, and mounting hardware for damage, leaks, missing components, and security of mounting. d. Inspect exposed wiring d. Wiring harness harnesses for breaks, frayed broken, frayed, or insulation, loose or damaged damaged. Mounting connectors, and loose, damaged, hardware missing. or missing mounting hardware.