T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P - 2
CHAPTER 4
HOLDING FIXTURES
4 - 1.
General. This chapter contains job tasks that tell you how to repair the holding
fixtures.
The job tasks tell you how to remove and install components and assemblies of
the holding fixtures. Defective components and assemblies removed from the holding fixtures
are not covered in this manual for repair at this maintenance level. These defective items are
turned in for repair. Repair of the holding fixtures at this maintenance level is done by
replacing any bad components or assemblies with good components or assemblies.
4 - 2.
Equipment Items Covered. Table 4-1 lists the equipment items covered in this
chapter. The assemblies making up the holding fixtures are listed along with the section
and page number where they are found in this chapter.
Table 4-1. Equipment Items Covered
Paragraph
Title
Page
4-5
Holding Fixture Assembly
4-5
4-6
Command Holding Fixture Assembly
4-29
4 - 3 .
Equipment Items Not Covered. None.
4 - 4 .
General Maintenance Instructions. The following maintenance practices must be
followed any time you are working on the test set.
Electrical connector repair maintenance kit 12285360
contains instruct ions and tools needed for repair and
replacement of connectors, receptacles, contacts, and
wires.
a. Soldering Techniques. Solder connections must be bright clean before soldering.
Remove dirt and grease from connections with freon (Item 13, appendix C) and acid swabbing
brush (Item 8, appendix C). Solder (Item 29, appendix C) must be non-acid type. Rosin flux
(Item 25, appendix C) should be used. All wires, parts, and solder iron must be pre-tinned for
good connection and maximum transfer of heat. Clean all solder joints with acid swabbing
brush and isoproyl alcohol (Item 17, appendix C) after soldering to obtain a clean, bright
surface.
Volume IV
Para. 4-1
4-1
