ARMY TM 9-6115-670-14&P
5-2
Section I. REPAIR PARTS; SPECIAL TOOLS; TEST, MEASUREMENT,
AND DIAGNOSTIC EQUIPMENT (TMDE); AND SUPPORT EQUIPMENT
5.1. COMMON TOOLS AND EQUIPMENT.
For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment
(MTOE), CTA 50-970, or CTA 8-1010 as applicable to your unit.
5.2. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT.
For listing of special tools, TMDE, and support equipment authorized for use on this equipment, refer to
Appendix C, Repair Parts and Special Tools List (RPSTL), and Appendix B, Maintenance Allocation
Chart, of this manual.
5.3. REPAIR PARTS.
Repair parts are listed and illustrated in Appendix C, Repair Parts and Special Tools List, of this manual.
Section II. DIRECT SUPPORT TROUBLESHOOTING
5.4. GENERAL.
This section contains troubleshooting procedures to determine the probable cause of observed
equipment malfunctions. Branching logic trees are provided to isolate the faulty component and offer
corrective actions to eliminate the malfunction.
5.5. DIRECT SUPPORT TROUBLESHOOTING PROCEDURES.
The following pages list common malfunctions that may occur during operation or maintenance of the
Auxiliary Power Unit 10 kW, 120/240 VAC, 60 Hz (APU), followed by a troubleshooting procedure. Refer
to the symptom index to locate the troubleshooting procedure for the malfunction you observe. Each
troubleshooting procedure consists of a branching logic tree. Perform the test or inspection, and the
recommended corrective action in the order listed in the logic tree. If the malfunction is corrected by a
specific corrective action, do not continue with any remaining steps. But if the corrective actions do not
correct the malfunction, notify the next higher level of maintenance.
NOTE
Refer to “Table 1-1. Differences Between Models” for
differences between MEP-903A, MEP-903B, and MEP-
903C, which may not be depicted in the TM
illustrations.
