TB-9-2920-225-34-1
100 AMP REGULATOR
TECHNICAL BULLETIN; CHECKOUT AND REPAIR PROCEDURES
NOVEMBER 1981
TB-9-2920-225-34-1 - Page 6 of 70
TB 9-2920-225-34-1
d.
DO—Use a 60W AC or DC soldering iron.
Solid state components are easily damaged by ex-
cessive heat.
e. DON’T—Allow wires to become pinched be-
tweencovers, heat sinks, circuit boards, etc.
f.
DON’T—Use a screwdriver to pry up transis-
tors during removal. The mica washer between the
transistor and the circuit board or heat sink is thin
and can be easily damaged.
g.
DON’T—Drop transistors since they are
easily damaged. If a transistor is dropped it should
be checked before being installed in the circuit.
h.
DO—Check transistor insulating washers
and replace if cracked, broken, or missing. Coat
washers with insulation compound (silicone) per
MIL-S-8660, NSN 6850–00–880–7616.
i.
DO—After repair, remove all excess solder.
Check for loose wires, screws, and washers which
could cause short circuits and burnouts when
power is applied to the regulator.
j.
DO—Check the regulator cover seal, replace
if cracked or missing. Coat the seal with insula-
tion compound (silicone) per MIL-S-8660, NSN
6850-00–880–7616.
k.
DO—Apply adhesive 8040–877–9872 to the
adjustment access plug or screw.
.
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