TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM9-2320-387-24-l 10. On page 2-192, steps relating to resolving the problem of excessive oil loss are listed. Read the diagnostic flow chart until you find OIL LEAKS OR ENGINE PROBLEMS. The tests listed are shown in the example page to the right of this text. IL In accordance with Test 1, you checked the oil level and filter for leaks. The oil level and filter appears normal and you move on to Test 2. 12. In Test 2, you begin a methodic check of the engine lubricating system. You discover a leak in the oil cooler assembly adjacent to one of the mounting brackets. One of the welds has cracked, allowing a class III leak from a small area of the cooling fins. The oil cooler assembly must be repaired or replaced. 13. At this point, the engine lubrication diagnostic flow chart would direct you to a specific detailed procedure to solve the problem. However, the engine lubricating system is complex and you must now refer to the table of contents to locate the proper task paragraph. NOTE: Before attempting to repair or replace the oil cooler assembly, as a Unit mechanic, you must: a. Determine the maintenance responsibility of repair or replacement of the component. b. If the task is at your echelon of maintenance responsibility, you must identify the tools needed and the replacement parts required. Refer to the Maintenance Allocation Chart - MAC (appendix B) to determine not only the maintenance responsibility of the item, but also to obtain an estimate of the time required to perform the task, tools needed, and any special notes/requirements necessary. Refer to TM 9-2320-387-24P, Unit, Direct Support and General Support Maintenance Repair Parts and Special Tools List for requisition data concerning replacement parts for this task. X