Section III. ORGANIZATIONAL TROUBLESHOOTING

Organizational Preventive Maintenance Checks and Semites (PMCS) (Con't) - TM-5-4310-452-14_75

TM-5-4310-452-14 Compressor Air: Rotary Screw 750 CFM 100 PSI Wheel-Mounted DED SULLIAR Model 750 DP Manual
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TM 5-4310-452-14 Section III. ORGANIZATIONAL TROUBLESHOOTING Paragraph Page Number Title Number 4-9 General ................................................................................................................................... 4-9 4-10 Troubleshooting Symptom Index ............................................................................................. 4-10 Table 4-2 Mechanical Troubleshooting Procedures ................................................................................. 4-10 Table 4-3 Electrical Troubleshooting Procedures .................................................................................... 4-15 4-9. GENERAL. a. This section contains information for identifying and correcting most electrical and mechanical malfunctions which may occur on the 250 CFM Trailer-Mounted Compressor Unit, Electrical malfunctions are isolated to an individual circuit or component, Component replacement is referenced to another section, unless only basic knowledge is required to perform the task. b. The Troubleshooting Symptom index in paragraph 4-10 lists the common malfunctions which may occur, The symptom index refers you to the proper page in Tables 4-2 and 4-3 for a troubleshooting procedure. c. Refer to Chapter 1, Section II for a better understanding of how a system operates. If you are unsure of the location of an item mentioned in troubleshooting, see paragraph 1-9 or the maintenance task where the item is replaced. d. This manual cannot list all the electrical and mechanical malfunctions that may occur, nor all the tests or inspections and corrective actions, but the most likely to occur are mentioned. In general, a switch or sending unit is more likely to be defective than a gage or indicator. The least likely cause of an electrical malfunction would be in the wires or harnesses, If a malfunction is not listed, or is not corrected by a listed corrective action, notify your supervisor. e. Check the condition of the storage batteries prior to making any electrical checks (see TM 96140-200-14). f. When troubleshooting a malfunction: (1) Question the operator to obtain any information that might help determine the cause of the problem. Before continuing, ensure that all applicable operator troubleshooting has been performed. (2) Locate symptom or symptoms in paragraph 4-10 that best describe the malfunction. If the appropriate symptom is not listed, notify your supervisor. (3) Turn to the page in Table 4-2 or 4-3 where the troubleshooting procedures for the malfunction in question are described. Headings at the top of each page show how each troubleshooting procedure is organized: MALFUNCTION, TEST OR INSPECTION (in step number order), and CORRECTIVE ACTION. (4) Perform each step in the order listed until the malfunction is corrected. DO NOT perform any maintenance task unless the troubleshooting procedure tells you to do so. 4-9

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