Bell OH-58 C, Technical Manual

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TM 55-1520-228-BD
HOW TO USE THIS MANUAL
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.
1. Organization of the Manual.
This manual contains a general information chapter
(chapter 1), a general assessment chapter (chapter 2), and specific repair chapters
(chapters 4 thru 19).
Chapter 3 is not used. It also contains five appendices.
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.
The major
functional groups correspond with the functional groups of the -23 series manuals
that are employed in routine repairs to the helicopter.
3. Chapter 3 is not used in this manual.
It would normally contain repairs for
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. Purpose of the chapter.
(2) Assessment procedures.
General assessment information for the repairs
covered therein.
(3) Repair procedure index.
b. Section II - Repair Item.
A subsection is included for each repair item
covered in that functional group.
It contains the following:
(1) General. About the nature and cause of damage and repair.
(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.
NOTE
The first option is the preferred choice, the second option
is the next preferred, etc.
Selection of the option should
be the most preferred method possible under the circumstances
and with the available materials and manpower.
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