TM 5-3805-262-20
12-1. SIGNALING DEVICES MAINTENANCE (CONT)
a. Back-up Alarm and Switch (cont).
CLEANING
Dry cleaning solvent P-D-680 used to clean parts is toxic and flammable.
W e a r p r o t e c t i v e g o g g l e s a n d g l o v e s and use only in a well ventilated
a r e a . A v o i d c o n t a c t w i t h s k i n , e y e s a n d c l o t h e s a n d d o n ’ t b r e a t he
vapors .
Do not use near open flame or excessive heat and don’t smoke
when using it. Failure to do so could cause serious injury. If you be-
c o m e d i z z y w h i l e u s i n g c l e a n i n g s o l v e n t , g e t f r e s h a i r a n d m e d i c a l
a t t e n t i o n i m m e d i a t e l y . I f c o n t a c t w i t h s k i n o r c l o t h e s i s m a d e , f l u sh
with large amounts of water.
I f c o n t a c t w i t h e y e s i s m a d e , w a s h e y e s
with water and get medical aid immediately.
(1) Clean all metallic parts using clean cloth moistened with cleaning sol-
vent P-D-680. Dry using clean cloths.
(2) Clean remaining parts using clean cloth moistened with detergent. Dry
using clean cloth.
(3) Clean all terminals using clean cloth moistened with isopropyl alcohol.
INSPECTION, TESTING, AND REPAIR (STREET 1 OF 2)
( 1 )
Inspect wire (6) for cracked or broken insulation or broken wire strands
at connection to terminals. Repair cracked or broken insulation by apply-
(2)
(3)
ing insulation tape to area. If broken wire strands are seen, replace
wire lead.
Inspect wiring harness terminal (3) wire, spade terminals (11 and 13)
w i r e, and back-up alarm switch (15) spade terminals (12 and 14) wire for
cracked or broken insulation or broken wire strands at connection to
terminals. Repair cracked or broken insulation by applying insulation
tape to area. If broken wire strands are seen, cut wire as close to term-
inal as possible. Strip 1/4 inch insulation from end of wire taking care
not to cut through wire then crimp new terminal securely onto wire.
Inspect back-up alarm (10) for cracks or breaks and loose, broken, or
corroded terminal studs. Connect multimeter across terminals and check
for continuity. If continuity not obtained or any of the above conditions
are seen, replace back-up alarm.
12-4
