4-12. INTRODUCTION TO TROUBLESHOOTING (AVIM).
Troubleshooting procedures for the AVUM level and AVIM level are identical. The information required to identify and
correct most mechanical malfunctions of the Ground Handling Wheels Assembly, is contained in Chapter 3, Section IV.
Component replacement procedures are referenced to Chapter 3, Section V, but repair procedures are referenced to
Chapter 4, Section V. Refer to Chapter 2 for a better understanding of how a system operates. If the location of an item
mentioned in troubleshooting is not is known, see Appendix C to identify locations.
4-13. TROUBLESHOOTING PROCEDURES (AVIM).
The troubleshooting procedures at the AVIM level are identical to the troubleshooting procedures at the AVUM level.
Since AVIM can perform any task performed at AVUM level, the procedures are presented in Chapter 3, Section IV, and
not duplicated in this section. The AVUM level troubleshooting procedures, used at the AVIM level, are provided in