Section IV. UNIT TROUBLESHOOTING PROCEDURES

Table 4-1. Unit Preventive Maintenance Check and Services (PMCS)

Table 4-2. Direct Support Troubleshooting Procedures

TM-5-4310-393-14 Air Compressor Diesel Engine Driven 20 CFM 3200 PSI Model KA7-DA Manual
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TM 5-4310-393-14 Section IV. UNIT TROUBLESHOOTING PROCEDURES Paragraph Page 4-10 General 4-5 4-11 Explanation of Columns 4-5 4-12 Troubleshooting Procedures. 4-5 4-10. GENERAL. a. This section provides information for identifying and correcting malfunctions which may develop when operating or maintaining the Service Unit. b. Before performing troubleshooting, read and follow all safety instructions found in the Warning Summary at the front of this manual. c. This section cannot list all malfunctions that may occur, nor all probable causes and corrective actions. If a malfunction is not listed, or is not corrected by the listed corrective actions, notify your supervisor. d. 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/crew troubleshooting (Chapter 3, Section III) was performed. (2) Identify the general area of the Servicing Unit where the problem has occurred for instance, if the cylinders are not filling correctly, go to the COMPRESSED GAS SYSTEM listing Then, review the malfunction/symptom description that describes your problem. Headings at the top of each page show how each troubleshooting procedure is organized: MALFUNCTION/SYMPTOM, PROBABLE CAUSE, and TEST OR INSPECTION/CORRECTIVE ACTION. (3) 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. 4-11. EXPLANATION OF COLUMNS. a. The columns in Table 4-2 are defined as follows- 1) MALFUNCTION/SYMPTOM A visual or operational indication that something is wrong with the Reciprocating Compressor Unit. (2) PROBABLE CAUSE A procedure that isolates the problem within a component or system. (3) TEST OR INSPECTION/ A procedure to correct the problem. CORRECTIVE ACTION 4-12. TROUBLESHOOTING PROCEDURES. The Unit Maintenance troubleshooting procedures are found in Table 4-2. 4-5

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