TM-9-2350-311-34-2 Maintenance Manual for Volume 2 M109 Cab Download
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TM 9-2350-311-34-2 Section IV. TROUBLESHOOTING 2-20 GENERAL Information in this section is for use by maintenance personnel in conjunction with and as a supplement to, the trouble- shooting sections in TM 9-2350-311-10 and TM 9-2350-311-20-2. This section provides a continuation of trouble- shooting instructions where a remedy in TM 9-2350-311-20-2 refers to support maintenance. The purpose of troubleshooting is to make a quick and accurate diagnosis of a problem in order to correct it without unnec- essary labor and expense, to avoid further damage to a component, and to restore vehicle system to full operational capa- bility. 2-21 INITIAL SETUP Tools, materials/parts, and any conditions necessary to complete a troubleshooting task will be listed at the beginning of each troubleshooting tree. 2-22 WICK GUIDE TO TROUBLESHOOTING 2-22.1 Contents of Quick Guide to Troubleshooting The QUICK GUIDE TO TROUBLESHOOTING lists the items to check, possible symptoms with each item, and a reference to a paragraph where a corrective action for the problem can be found. 2-22.2 Inspection Always conduct a detailed and thorough visual inspection before operating or disassembling a component. Look for dam- aged, distorted, or deformed parts; loose electrical connections; hydraulic oil leakage; dirt or foreign matter; evidence of overheating, as indicated by burnt paint or blued steel; insufficient or excess lubrication; excessive wear; loose fittings or missing fasteners; rust or corrosion; obstructions and interferences with other parts; or any other abnormalities. 2-17