TM 5-683/NAVFAC MO-116/AFJMAN 32-1083
rust, the unit should be dried by placing it in an
(6) Check for corrosion at all primary, second-
oven or by blowing heated air over it. Liquid clean-
ary, tap, and ground connections.
ers may only be used if recommended by the manu-
(7) Check for loose connections at the coil
facturer. It should be noted that if any inspection
clamps, primary, secondary, tap, and ground connec-
and/or repair that takes longer than 24 hours or
allows the transformer to cool to ambient tempera-
c. Repairs. A transformer should be cleaned of
ture, then special drying procedures outlined by the
dirt and dust annually with a vacuum cleaner,
manufacturer should be adhered to before the
blower or air compressor at less than or equal to 30
transformer is re-energized.
PSI. If moisture is evident by the appearance of
Figure 31. Dry-type transformers.