Bell OH-58A Technical Manual page 18

TM 55-1520-228-BD
This manual is developed to assist the soldier in a battlefield environment to make
assessment and repair of damage to the OH-58 helicopter which cannot, due to asset
availability or environmental factors, be repaired in the normal prescribed manner.
Within this technical manual, the word shall is used to indicate a mandatory
requirement. The word should is used to indicate a nonmandatory but preferred
method of accomplishment. The word may is used to indicate an acceptable method of
accomplishment.
Organization of the Manual.
1.
(chapter 1), a general assessment chapter (chapter 2), and specific repair chapters
(chapters 4 thru 19).
References (Appendix A), special or fabricated tools (Appendix B),
expendable/durable supplies and materials list (Appendix C), substitute materials
and parts (Appendix D), and BDAR fixes authorized for training (Appendix E).
2. Chapter 2 is used to assess the helicopter in general and references specific
chapters for detailed repair procedures of the major functional groups.
functional groups correspond with the functional groups of the -23 series manuals
that are employed in routine repairs to the helicopter.
Chapter 3 is not used in this manual.
3.
equipment which does not fall under one of the standard helicopter functional groups.
4. Each functional group chapter is organized as follows:
a. Section I - Introduction.
(1) Scope.
(2) Assessment procedures.
covered therein.
(3) Repair procedure index.
Section II - Repair Item.
b.
covered in that functional group.
(1) General.
(2) Item and trouble statement with:
(a) Limits given.
(b) Personnel and time required to effect repairs.
(c) Materials and tools needed.
(d) Procedural steps to accomplish the repair.
(3) If more than one method of repair can be used, the various options will
be included next.
The first option is the preferred choice, the second option
is the next preferred, etc.
be the most preferred method possible under the circumstances
and with the available materials and manpower.
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HOW TO USE THIS MANUAL
This manual contains a general information chapter
Chapter 3 is not used.
Purpose of the chapter.
General assessment information for the repairs
A subsection is included for each repair item
About the nature and cause of damage and repair.
It also contains five appendices.
It would normally contain repairs for
It contains the following:
NOTE
Selection of the option should
The major