2-5. Removal of Earphone Element
2-9. Removal of Switch
a. Pull out one side of the cradle (5) from the
a. Remove the four mounting screws (1) from
earphone cup assembly (6).
the switch cover (2).
b. Slide the cradle off the earphone cup
b. Lift off the switch cover (2) and remove the
assembly.
preformed packing (3) from the switch case (7).
c. Lift off one part of the cushion (1) from the
c. Remove the switch plunger (8), screw (9),
retainer plate (3).
washer (10), screws (11), spring (13), and washers
d. Peel the cushion from the earcup assembly.
(13) from the switch case (7).
e. Remove the four screws (2) until the re-
d. Disengage the wires from the switch (14)
tainer place (3) is free from the earphone cup
and remove the switch from the case.
assembly (6).
e. Loosen the bushing (4) and remove the seal
f. Remove the earcup mounting screw (9) and
(5) and washer (6) from the switch case (7).
remove the earcup cover (8).
f. Gently pull the wires from the switch case.
g. Unscrew the two terminals screws (10) and
gently remove the terminals from the cord (11).
h. Remove the two earphone mounting screws
(7) with their O-rings from the earphone cup
assembly (6).
i. Hold the earcup in one hand and tap gently
but firmly against the palm of the other hand
until the earphone element (4) falls free.
2-6. Replacement of Earphone
Element
Reverse the disassembly procedures described
in paragraph 2-5 to replace the H-182/PT ear-
phone element.
2-7. Direct Support Maintenance
Direct support maintenance of Headset-Micro-
phone H-182/PT consists primarily of trouble-
shooting and replacing the switch, cord assembly,
and Connector Plug, Electrical U-161/U.
2-8. Direct Support
Troubleshooting
Tool Kit, Radio and Radar Repairman TK-87/U
and Multimeter TS-352B/U are required for
troubleshooting the H-182/PT. The switch, cord
assembly, and Connector Plug, Electrical U-161/U
may be checked by continuity measurements
made with the TS-352B/U. The performance
characteristics of the H-182/PT may be observed
with Telephone Test Set AN/PTM-6; refer to the
schematic diagram of the equipment shown in
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