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TM 5-2420-222-20-2
PARKING BRAKE HORN RELAY (SERIAL NUMBERS 319995 THRU 342573 ONLY) - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1. Terminal (1)
Connector (2)
a.
Tag (page 2-137).
b.
Unplug.
2. Three
Connector (4)
a.
Tag (page 2-137).
terminals (3)
b.
Unplug.
3. Relay (5), cowl
Two screws (9),
a.
Using 1/4-inch flat-tip screwdriver
support (6), and
nuts (10), and lock-
and 11132-inch box wrench, unscrew
two terminals
washer (11)
and take apart.
(7 and 8)
b.
Get rid of lockwashers (11).
4. Relay (5)
Two terminals
a.
Tag (page 2-137).
(7 and 8)
b.
Take off.
5. Cowl support (6)
Relay (5)
Take off.
CLEANING
NOTE
For more information on how to clean parts, go to General Maintenance Instructions (page 2-137).
WARNING
Electrical parts solvent cleaning compound (trichlorotrifluoroethane) is flammable, and reacts
violently with aluminum, titanium, barium, lithium, samarium, and sodium potassium. Cleaning
compound fumes displace air and it may be carcinogenic. Boiling point is 114°F (460C). Do not
wear jewelry. Wear rubber gloves and use only in well ventilated area. Avoid contact with skin,
eyes, and clothes and do not breathe vapors. Do not use near open flame or excessive heat. If
you become dizzy while using cleaning compound, get fresh air immediately and get medical aid.
If contact with eyes is made, wash your eyes with water and get medical aid immediately.
6. Relay (5)
a.
Using clean rag dampened with solvent
compound, wipe clean.
b.
Using clean, dry rags, wipe dry.
2-490
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