SECTION III. TEST EQUIPMENT AND SPECIAL TOOLS

T.O. 12P4-2APX-142

NAVAIR 16-35C6280-1

TM 11-5841-268-25

SECTION II

PREPARATION FOR MAINTENANCE

(Not Applicable)

SECTION III

TEST EQUIPMENT AND SPECIAL TOOLS

31. TEST EQUIPMENT REQUIRED.

35. TEST WIRING.

32. The following test equipment is required for mainten-

36. Test wiring to facilitate measurements between con-

ance of Control, Transponder Set C-6280(P)/APX, C-6280A

tact pins of the electrical connector on the transponder set

control may be fabricated by connecting a short length of

(P)/APX, C-6717/APX, and C-7483/APX:

wire to each contact of the MS24266R22B55S connector.

(Air Force, Navy) Multimeter AN/PSM-6, or equiva-

These wires should be identified with the contact designa-

lent, for making continuity checks.

tion and attached to a bank of terminals suitable for making

(Army) Multirneter ME-26/U, or equivalent, for making

positive connections.

continuity checks.

Connector MS24266R22B55S, to facilitate checks.

37. POWER SOURCE.

33. TOOLS REQUIRED.

38. Other than voltage for checking the TEST and REPLY

indicator lights and for lighting the panel lamps, the trans-

3-4. Except for the special tools listed in this paragraph,

ponder set control requires no input power. A 28-volt DC

only common types of tools are required for maintenance

source is required for checking the indicator lights. Depend-

of the transponder set controls. (Army) See Appendix C for

ing on the particular transponder set sontrol, a 5-volt, 6-volt,

Maintenance Allocation and Tools and Equipment List. The

or 28-volt DC source is required for panel lighting. The

following tools, or their equivalent, are required for extract-

C-6280(P)/APX and the C-6280A(P)/APX require either the

ing and replacing contact pins in the electrical connector:

6-volt or 28-volt DC source, depending on the voltage rating

Extraction Tool MS24256R20, or equivalent; Insertion Tool

MS24256A20, or equivalent; and Crimping Tool M1700A

of the panel lamps installed. The C-6717/APX and C-7483/

APX require the 5-volt DC source.

with MS3190 Head, or equivalent. In addition, the tool as

shown in Figure 3-1 may be fabricated and used for holding

the momentary test switches depressed, when necessary,

during testing.

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