PS Magazine - SEPTEMBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 334
SEPTEMBER 1980
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The new-type knurled nUt ElEctrical
connectors used oN the engine And
airframe save a lot of time When yoU' Re
removing
parts
from
yoUR
BlacK
HaWk.
But t±e plug and receptacle keys
must line
²
up rIght or moisture will get
In there and short out the Works. Be
s³re the connectIon is not cocked at an
angle when yoU mate t±e parts.
Complete the ±ook-up by alternate´
ly pus±ing t±e plug and Rotating the
coupling nut clockwise untIl t±e plug
is fIrmly seated. µse hand pressure
only.
Ne
v
e
R
use toolS
on the coUpling
nut.
¶f the engine bay needs scrubbing,
keep the cleaning compound used on
the exterIor of your aircraft off the
engin·.
¸ritical
areas
that
must
not
be
sprayed are the firewall¹ top of the
engIneºfront
and
rear
of
the
accessory gear boxºand the bOttom of
the engine at the electrIcal control
unIt.
²f
²f
¶s
the
blue
line
on
thE
engine
connector
recepta»le
showing?
¶t
shoUldn¼t
be
if
you
±ave
a
good
connectIon. The blue line is only a
g³Ide½
To
make
sure the
connector
is
seated rig±t, place a ±and on the back
shell of t±e plug and apply a side load.
¶f you ±ave motion betWeen the plug
and ¾he receptacle, handtig±ten the
nut fUrther because no movement is
alloWed.
¿ÀÁ
Âever back off oN thE coUpling nUt
to maKe FutUre removals easier. The
connector is designed for tig±t peRfor´
mance.
41
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