PS Magazine - MAY 1985
PS, The Preventative Maintenance Monthly
ISSUE 390
MAY 1985
AN/GRC-50 Frequing Out?
Round 'n± round she goes, but when
the wavemeter dial on your radio set
stops, you should stop too.
If you crANk it past the stop, you±ll
strip the dial±s nylon gear or break the
stop. Either way, you won±t be able to
set the right Fequency or align your
radio set compon²nts³
> .
·,
Stop when
·
"
dial does
You±ll also be o´ Fequency if you
lose the wavemeter chart th
µ
at coMes
with each tUning head. If you break the
string that holds the chart, make
another³
THIS WAVEMETER CHART SHALL Be
USED dNL Y WiTH WAVEMeTER
HAV±NG SER²AL NO.
323
³
Don±t use another set±s chart¶ Each
-50 Filter Facts
Protect your R-133· or R¸1148
receiver±s 3¹5ºL1 »¼ter. Keep its
cap on.
±²³´
Keep caps
on fIlter
Then, when you pull the receiver
Fom the component case, keep it level¶
If the Fo½t of the receiver drops down,
the »lters can bang against the case³
Once it±s out, don±t set the receiver
on i¾s back¶ That can bend ¿e Àlters too.
Áhe other À¼ters to worry about are
the air tÂpes in the power supply,
receiver and transmitterÃ
chart is calibrated to be used with the
Clean and change theM like TÄ
head it coMes "ith³ They aren±t iÅter-
Æ1Ç5820ÇÈ6·-12 saysÉ Clogged Àlters
changeable.
let heat build, burning out sensitive
If you lose a chart, turn the radio inÊ
coMponents.
48
MAY 8µ
Radio Harness .
..
.
By
ThE Piec±
You h
A
ve to order the com
p
onents to make the
STË138 Harness Ìr your ¹Í/PRC-77 and -25
radios³ THe haÎess
I
your TÄ is no longer stocked
under one ÍSͶ
RL-207 Reeling MachIne .
..
LC-2 Pack Frame
NSN 865±01²073±³326
Cargo Support Shelf
NSN ³465±00-´01±6476
Crank WIth Ca²e
If you have to craÏ up a hot RLÇ207,
watch that exhaust ÐeX hose!
ÑWHen your engine is hot, the hose is
hot¶ ¹ careless pull on the cord and
you get buÎed.
Wear gloves if you Have them, but
care is needed here, too
Ò
à Clothes can
get caught in that spinning cranksHaÓ
pulley.
AS³1729´µC ¶lement Change
Get the ¹SÇ1730/VRC antenna element Ìr your ¹SÔ1729/VRC with ÍSÍ
5985Ô00-985Õ9022. The ÍSÍ sÖown on Page 5 Ìr Ite× 5 in ºiØ 1 of TÄ
·1-5985-262Ç2ÈÙ is wrongÚ
MAY 8µ
49
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i
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I
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