PS Magazine - OCTOBER 1976
PS, The Preventative Maintenance Monthly
ISSUE 287
OCTOBER 1976
'±
If you see flashing white ligHts on
-
±
²
³=´µ
:¶
·¸¹9
1
The monitor signal module it means
;
you've lost AC power and the unit is
_on battery power. Call the engineers
right now!
±rue, the battery wiLl keep the unit
operating up to 24 hoUrs, bUt why
abuse the backup power package. ²t's
for emergencies³
r'-±.²"³´µ_¶·¸¹
you see Flashing
POWER lights on a status monitor
module, you've lost AC power to the
Control ´nit, and the C´'s on battery.
²f this happens, and you can't get tHe
engineers pronto, be sure to make an
entry in the CQ log. ±hen, calL the
engineers as soon as tµey"re avaiLable
to repair the system.
Easy does it with ¶he control unit
mode switch key. You can force the
key past the ACCESS stop if you're not
carefuL.
With the key in the SEC´RE mode
you can turn it countercLockwise-
CC·¸90¹ to ±ES± /RESE± mode
and then another 90° CCW to the
ACCESS mode.
With the key in ºCC»SS mode yoU
can
turn
it
cLockwise¼CW¼to
±ES± /RESE± and another 90°
to
SEC´RE. Never turn the key CCW
past the ACCESS mode.
V
J
º»
¼
½¾¿
À
ÁÂ
Ã
ÄÅÆ.Ç
È
É
Ê
;f
½he pace is tight. ±he connectors
are snug. ±he circUit Breakers are
cLose.
Which means that when you take
off or instaLL tHe connectors on¾ tHe J3,
J4 and J5 jacks of tHe power sup¿Ly
(´nit
5)
of your MÀ63 or MÀ67
VuLcan, you've got to be extra careful
not to bust the breaker knobs (CÁÀ,
r
±
²³´;µ
¶
·
¸
i
¹º»¼
CÁ2, CÁ3, CÁ4 and CÁ6).
²t's tougH, but exÂra patience is the
I
.²³
WHEN WORKING ON CONNECTORS
j
onLy way. ²f you snag tHe breaker
´
_
knobs witH your cable pLiers, chances
are
good
that you'lL break tHem.
±hat'll put your radar down, and your
VuLcan is out of business.
Extra precaution, too, is caLLed for
when you operate the ramp locking
Handle on tHe MÀ63.
You've gotta remember to return
the handle to the Locked position (up)
after you raise or lower the ramp.
If you forget and leave the handle
down, you can snag Âhe sight current
generator when you rotate the t rret.
±hat
means damage
to both the
HandLe and tHe SCG.
43
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