GENERAL MAINTENANCE INFORMATION. (cont)
Electrical System Components and Wiring. (cont)
Cleaning electrical connectors. (cont)
Rinse away loose corrosion, dirt and other contamination from the connector and pins with
cleaning compound MIL-C-81302. Hold connector pointed slightly downward, if possible, while spraying cleaning
compound MIL-C-81302 into socket openings.
Wipe excess spray with a lint-free cloth.
Do steps 2 thru 4 again, if necessary, to remove corrosion.
Threaded holes in metal must be thoroughly clean when sealing compounds are used to lock
screws in place. Clean old sealing compound out of threads with tap and tap wrench. Blow loose particles out of holes with
compressed air and clean threads with cleaning compound MIL-C-81302 and acid-swabbing brush. Let holes dry before
putting in screws.
When cleaning and inspecting ground points, take off ground contact from mounting point. Clean
ground point bolt, nut and contact with cleaning compound MIL-C-81302 and acid-swabbing brush. If corrosion is present,
clean with wire brush and abrasive cloth. Look at all parts for cracks, looseness or stripped threads. Replace damaged or
crossthreaded screws and nuts. Check for torn or stretched gaskets and leaks. Turn in bad parts. Be sure to tighten all
nuts when mounting ground contacts.
Rub corrosion off connector contacts and other parts with pencil eraser. Remove rust by scraping,
wire brushing or both. If rust damage is too great or on small thin parts that would be weakened by rust, you may need to
replace the part. Find the cause of the rust and correct the problem.
Disconnect the electrical connector to be inspected.
Use a good light source to look at electrical contacts.
Look for white powdery or granular material anywhere on the outer or inner surfaces of the
connector and receptacle. Look at the male and female sockets for signs of blue-green discoloration at the base of the
pins or sockets. Clean off surface corrosion before assembling. Electrical contacts corroded badly enough to destroy the
outer metal coating should be replaced. Any part corroded badly enough to weaken it should be replaced.
Look for bent, broken, missing or pushed-in contacts. Straighten bent pins with long, round-nosed
pliers. Other damage should be repaired or parts replaced.