PS Magazine - TB 43-PS-445
PS, The Preventative Maintenance Monthly
ISSUE 445
DECEMBER 1989
OE-254 Antenna .
.±
1·±RON,El tLBe
1s· PluS±
Tl² C³BL´ IS
1µM¶G·¸
!
R¹PºIr o»
¼½p¾¿cÀ
iÁ!
fer continuous use, the OE-254 an±
tenna's CG-1889A/U or CG²1889B/U
RF cable and UG-349B/U connector
ground out to the cable shielding. The
damaged cable must ³e replaced.
Use a CG²1889C/U ca³le, NSN
5995²01-085-1665, to replace dam´
aged Aµor B²model cables. It has im¶
proved connectors which make the
cable stronger.
Extend the li·¸ o· your RF cable by
using a PF-211 strain clamp, NSN
5975²00²563²0229, at the ante¹naºs
ÂÃÄÅ ÆH£ ÇÈbÉÊ
ËVÌÍY s
FÎÏÐ ÑÒ
hÓÔ
ÕÖ ×N
ØÙÚÛÜÝ
·eedcone end, like it says in »ara 2²4¼
o· TM 11²5985²357²13.
The¹ tape the cable
to the mast a³o½t o¹ce
every 5 ·eet. The tape,
NSN 5970²00²419-4291,
»ut on elbow con¹ector adapter,
CAGE 92180 »N TRU²2064. Order it
on a DD Form 1348¾6. TheR¿CisB16.
Þ6
Tape or tie the ca³le to a receiverÀ
transmitter guard. This will keep the
weight o· the ca³le oÁ the co¹¹ector.
ItÂll also take the stress, i· some³ody
trips over the ca³le, givi¹g it a hard
tug which will pull out the connector
or damage the ca³le.
Dßà 89
TACFIRE ELP .±²
arbon dust can jam your TACFÃE system's electronic line printer (EL»).
Dust buildup on Ähe helix keeps iÄ Åom printing. Carbon buildup Åeezes the
helÆx beaÇÈngs.
ÉeÊre you start to clean, put a cËean cËoth betWeen the heËix and circuit cards.
ÌHis keeps the carbo¹ dust and cleaning supplies away Åom the circuit cards.
RemoVe any heavy accumuËations o· carbon Åom the helix, bearings and
dÇive mechanisms With a dÇy Äoothbr½sh.
Then, shÆne the helix wiÄh a sWab, NSN 6515-00-890µ1475, and isopropyl
alcohol, NSN 6810-00²753-4993.
CareÍl, though. I· you put alcohol on too heavy, it runs oÁ into the circuit
caÇds, shorting them out. Be sure the helix is cool. Alcohol on a hot helix will
crack it.
Keep Åeon away Åom the helix. Freon is a good cleaner, but ¹ot in yo½r
Eλ. ÏÆnce the helix rotates at high speed, it geÄs real hot. Ðhen the cold Åeon
aerosol hits the hot helix, the helix cracks.
dßá 89
Þ7
Back to Top Back to Top
