TM 10-1670-300-20&P
TO 14D1-2-469-2
NAVAIR 13-1-42
(1)
Cut tacking (1) that secures bracket (2) to helmet (3) and remove bracket (2) from helmet (3).
(2)
Remove five screws (4) securing ear cushion (5) to bracket (2).
(3)
Gently pry ear cushion (5) from bracket (2)
(4)
Lift unserviceable earphone (6) from ear cushion (5)
(5) Loosen two set screws (7) which secure wires (8) to earphone (6) and pull wires (8) with terminals (9) from
earphone (6).
(6)
Insert wires (8) and terminals (9) into serviceable earphone (6) and tighten set screws (7)
(7)
Place earphone (6) into ear cushion (5) and install bracket (2).
(8)
Install five screws (4) to secure ear cushion (5) to bracket (2)
(9)
Tack bracket (2) to helmet (3) using doubled cotton tacking (1) in two places.
d.
Replace Earphone Cord. Replace earphone cord as follows:
(1)
Remove bracket, ear cushion, and earphone in accordance with steps c(1) through c(5) above.
(5)
Obtain an 18" length of type I nylon cord (1) (hereafter referred to as "attaching cord") and tie it to end of
the earphone connecting cord (2) on the right side of helmet (3)
(6)
Pull the connecting cord (2) from the helmet (3), using care not to pull running ends of attaching cord (1)
under the helmet liner.
(7)
Remove the earphone connecting cord (2) from the attaching cord (1).
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