TM 55-4920-212-15
CHAPTER 9
MAINTENANCE INSTRUCTIONS (FIELD AND DEPOT MAINTENANCE)
Section I. SPECIAL FIELD AND DEPOT MAINTENANCE TOOLS AND EQUIPMENT
155. Replacement or Repair Parts
154. Special Tools and Equipment
Replacement or repair parts required for field
Special tools or equipment are not required for
and depot maintenance of the shop set are listed in
field and depot maintenance of the shop set as a unit.
Special tools and equipment required for field and depot
maintenance of individual items of equipment are listed
in the technical manual for the item.
Section II. LUBRICATION
156. General
157. Special Lubrication Instructions
Refer to paragraphs 19 through 27 and 87
Lubrication instructions for the shop set are
through 94 for special lubrication requirements under
contained in the lubrication order which is a part of the
unusual conditions.
technical manual for the item of paragraphs 30, 31, 97,
and 98.
Section III. PREVENTIVE MAINTENANCE SERVICE
159. Preventive Maintenance Services at Time of
158. General
Major Repairs
Preventive maintenance services to be
performed by field and depot maintenance personnel
When a shop set is returned to field or depot
consist of lubrication, preservation, painting, anodizing,
maintenance for major repair, preventive maintenance
alodizing, and application of rust preventive compounds
services performed at time of shipment to the using
prior to shipment of an assembled shop set to the using
organization should be repeated as necessary to insure
organization.
the efficient operation of shop in the field.
Section IV. TROUBLESHOOTING
160. General
161. Procedure
This
section
contains
troubleshooting
Troubleshooting is a systematic isolation of
information useful to field and depot maintenance
defective components by means of an analysis of the
personnel in diagnosing and correcting unsatisfactory
shop set trouble symptoms, testing to determine the
'operation or failure of the shop set or any of its
defective component, and applying the remedy. To
components.
correct malfunctioning of equipment, the probable cause
81
