REPAIR AND OVERHAUL INSTRUCTIONS
two screws, nuts, and washers (27, 28, 29, FO4). Remove
82. This section describes the procedures for repairing
and overhauling Control, Transponder Set C-6280(P)/APX,
Step 4. When repair or replacement has been completed,
C-6280A(P)/APX, C-6717/APX, and C-7483/APX. Unless
reverse the procedures in Steps 1, 2, and 3 to reassemble
otherwise indicated, the procedures apply to all the trans-
rear panel assembly.
ponder set controls. The disassembly and reassembly proce-
8-7. REPAIR AND REPLACEMENT OF CONNECTOR
FO5. (Air Force, Navy) For complete part identification,
refer to the parts lists in Section X, which are also keyed to
88. GENERAL. When any of the contact pins or the con-
the exploded views. (Army) Refer to TM 11-5841-268-25P
for parts identification.
has been damaged, the connector should be repaired or re-
placed as outlined in paragraphs 89 through 812. When
8-3. REPLACEMENT OF PLASTIC LIGHT PANEL.
one or more pins are replaced, the wire or wires must be
8-4. To remove and replace the plastic light panel, proceed
connected to the pins as described in paragraph 810. To
provide access to the connector and wires, remove the rear
panel assembly (paragraph 86). Replace the rear panel as-
sembly when the repair or replacement has been completed.
in control dials (5 and 7) and remove control dials. "
89. CONTACT PIN REMOVAL. With connector J201 ac-
Step 2. Center all toggle switch handles.
cessible (paragraph 86), use extraction tool MS24256R20,
Step 3. On C-6280(P)/APX and C45280A(P)/APX, un-
or equivalent, and remove contact pin as follows:
Step 1. Set spacer sleeve of tool for removal of male con-
Step 4. On C-6280(P)/APX, C-6717/APX, and C-74831
Step 2. Place tool over pin and insert tool into pin cavity,
A(P)/APX, remove four screws (12, FO-4), nuts (13), and
taking care not to damage pin or connector insert.
Step 3. Exert a moderate force (from 5 to 10 pounds)
Step 5. On C-6717/APX and C-7483/APX, disconnect
axially to tool to release retention collet. (Spacer sleeve
P201 (part of light panel) from connector J202 (45, FO5).
should shoulder at face of insulation when tool is inserted
to proper depth.)
Step 4. Push extraction plunger of tool so that pin is
Step 7. To install light panel, reverse procedures in Steps
moved to rear of insert.
1 through 6.
Step 5. Grasp pin or wire at rear face of insert and pull
8-5. REMOVAL AND REPLACEMENT OF REAR PANEL
Step 6. Remove extraction tool from connector and set
86. To remove and replace the rear panel assembly, pro-
spacer sleeve of the tool forward in the last notch to protect
ceed as follows:
the end of the plunger guide.
Step 1. Loosen two turnlock fasteners on rear of unit and
810. CONNECTION OF WIRE TO CONTACT PIN. When
a pin has been damaged, remove pin (paragraph 89) and
loosen crimp with pliers to remove wire. When a wire is
Step 2. Remove four screws and washers (18 and 19,
broken or damaged, strip insulation 3/16-inch from end of
wire (avoid nicking the wire or damaging the insulation).
(P)/APX, also remove two screws (26, FO4). Move panel
Use crimping tool M1700A with MS3190 head, or equiva-
lent, to crimp the new pin to the wire.
811. CONTACT PIN INSERTION. To insert contact pins
Step 3. On C-6280(P)/APX, C-6717/APX, and C-7483/
in J201, use insertion tool MS24256A20, or equivalent, and
APX, remove four screws, nuts, and washers (24, 25, 26,
proceed as follows: