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TM 5-2420-222-20-2
CIRCUIT BREAKERS - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
CLEANING - CONTINUED
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 (46°C). 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.
21.
40 ampere circuit
a.
Using rag dampened with solvent
breaker (1) and 20
cleaning compound, wipe clean.
ampere circuit
b.
Using clean, dry rags, wipe dry.
breaker (2)
WARNING
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use only in
a well ventilated area. Avoid contact with skin, eyes, and clothes and don't breathe vapors. Do not use
near open flame or excessive heat. The flashpoint is 100°F to 138°F (38° to 59°C). If you become dizzy
while using cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made,
wash your eyes with water and get medical aid immediately.
22.
All other metal
a.
Clean in drycleaning solvent.
parts
b.
Using clean, dry rags, wipe dry.
INSPECTION/REPLACEMENT
NOTE
For more information on how to inspect parts, go to General Maintenance Instructions (page 2-137).
Replace defective parts which cannot be repaired.
23.
40 ampere circuit
a.
Look for signs of overheating, cracks,
breaker (1) and 20
breaks, abnormal bends, and dents.
ampere circuit
b.
Look for loose and corroded terminals.
breaker (2)
2-522
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