PS Magazine Issue 143 1964 Series [143 ed.]

Table of contents :
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Citation preview

"If it be now, ' tis not 10 come ;

If it be not to come, it will be now;

If it be not now, yet it will come:

the Readine•• t.. about keeping your equipment ready. There arc regulations that say it will be done,

like AR 11-14_ Now that everybody's got the word and enough time has gone by to get with the job, the top man's scouts will be look. iug to see how you're doing. DA Circular 20·4, "Special Subject for In spection-Command Implementation of the Materiel Readiness Program," dated 22l\1ay 64, is out with the word 011 what the inspectors will be looking for. Cet ready . . . Stay

" If it be now, ' ti s nol to come;

If it be not to come, it will be now;

If it be not now, yet it will come:

the Readtne•• about k eep ing yo ur equipment rca(ly. There are regulations that say it will he done,

Att" GROUND MOBIUTY TRAcKED ...

11

End Cormedors 12·13 l1li107 MilO

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11-19

WHEELED M35At 15 Commen:ialPubs I ..n MI51 n Antifreelfl

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like AR 11-14_ Now that everybody's got the word and enough time hus gone by to get with the job, the top man's scouts will be look. iug to see how you're doing. DA Circu lur 20·4 , "S pecial Suhj ec t for In spection-Comm and Implementation of the Materiel Readiness Pro· gram," d a ted 22l\'luy 64, is out with the word on what the inspectors will be looking for. Gel ready . . . Stay

AIR MOBIUTY ZI _ DAformZ_13 ZI Sew.torStb

20-27

22

H·I01 /UKNdstts 23 APM~I$ 23 Inspections t4

COMMUNICATIONS RT·n

~:;;:__IC~'f ~r:~= PowerCabIes

37-45

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.:.u AR£POWER

46·55

mew. FO.TUIE, Cold Weatber c.re-Fire ConttoI,Siptiq:&OpIkal£quip. 50-55 MxIIine Guns Ammunition 41 35-in HNvyEquip. RoUtt lIundIeI' ..... krm Numbm ...

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COMMUNICATIONS 37-45 retttyptwrilers Tool. Rl·l~9/ UReels

44

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AREPOWER

46-55

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These days when the outside temp takes a nose dive, and your teeth start chattering, your natural impulse is to snuggle up to a heater. Heaters come in many sizes, shapes and makes, but they all have one danger in common. When you burn fuel in the heater, or transfer heat from an engine manifold to fresh air, you always get that colorless, tasteless, odorless villain ---carbon monoxide (CO). Whether your heater's in an aircraft, vehicle, maintenance area or living quarters, regular preventive maintenance is a must to guard against this sneaky

CHECK RIRD HEATERS Say, for example, you've one of chose jim.dandy Janitrol heaters in a Choctaw (CH·34). The Daily, Intermediate and Periodic inspection can fill you in on checking Out the heater.

"THE WINTER'S TAL( . .

')

the outside temp takes a nose dive, and your teeth start chattering, your natural impulse is to snuggle up to a heater. Heaters come in many sizes, shapes and makes, bue they all have one danger in common. When you burn fuel in the heater, or transfer heat from a(1 engine manifold to fresh air, you always get that colorless, tasteless, odorless villain --carbon monoxide (CO). Whether your heater's in an aircraft, vehicle, maintenance area or living quarters, regular preventive maintenance is a must to guard against this sneaky

CHECK RIRD HEATERS Say, for example, you've one of those jim-dandy Janitcol heaters in a Choctaw (CH-34). The Daily, Intermediate and Periodic inspection can fill you in on checking out the heater.

One place you want to give the big eye to is the outside of the heater. Any discoloring here will mean that you've a ruptured combustion chamber. You &--,~~~.i!!"':"... know what that can mean-fumes and CO! Another place to check for leaks is the exhaust tube connections.

One place you want to give the big 1r'L-3lii.,........'l!t'" eye to is the outside of the heater. Any discoloring here w ill mean that you've a ruptured combustion chamber. You ~;;~~il~~iflra;KKfoi:if' know what that can mean-fumes and H CO! Another p lace to check for leaks is the exhaust tube connections.

Take the Bird Dog (0-1 )_ Fresh is ducted to a shroud wrapped the muffler. The muffler has scuds which t ransfer the heat from the exhaust gases to the flowing fresh air as it passes through the shroud and is then ducted into the cabin. Any hole in the muffler is naturally going to give you exhaust fumes in the cabin.

So when you pull a Periodic on the Bird Dog to check for leaks, try this for

Check it for cracks with 0 magnifying glass. If you don 't find any hol es or crocks, but suspect there might be some, meck it with the dye penetrant k~, FIN 6850-737-6911, in your A I I B, and (tool sets.

4

. You've the same problem of possible , - - " " " ' : : - - - - - - -- - -., contaminated heated air if you have a 1IIIII1I'!I1f'I~""-­ Beaver (U·6), Fresh air enters the in- t-~ ~ tensifier tube and is heated by the exhaust gases. Any leak in the tube will let exhaust fumes enter it and be carried right into the cabin.

....

That's the reason why on every Periodic you take the tube out of the tailpipe and check it inside and outside for wear, cracks and porosity. It's also a good idea to pressure test the tube every time with water at 10 PSI, even though this test is called for only every third Periodic.

Now, lee's cake a look ac che personnel heacer in your vehicle. Ic'll have one if its mission may cake ic CO cold In case your vehicle is winterized, you could have more than one heater. In any event, your manual can fill you in on the heater PM. The danger, increased by the fact thac your baby may be buttoned up to keep out the cold, is the exhaust syscern. Bue if you check all the connee-

By the way, a shot engine muffler or tail pipe can also let fumes seep into a vehicle, through holes and cracks, real easy.like ... winter or summer. Another point on run· ning your engine for any length of time indoors--don't do it ... 'taint healthy. But it's in cold weather that your heater can dish out trouble. And, unlike an engine exhaust pipe which channels the exhaust fumes Out and away from you, your heater is usually blasting hot air (clean or dirty) right at you. That's why checking com· bustion chambers and exhaust pipe outlets

Co

You get a certain amount of vibration when the van is moved from place co place and the exhaust pipe coupling could crack. You might check around the weld of the pipe too. The combustion chamber

One point on operating this heater-any heater-you want to be sure to turn on the exhaust fan just in case you've a leaky heater. On some jobs this is done automatically when you shoot the juice to the glow plug to fire up. 6

By the way, a shot engine muffler or tail pipe can also let fumes seep into a vehicle, through holes and cracks, real easy.like ... winter or summer. Another point on run· ning your engine for any length of time indoors--don't do it ... 'taint healthy. But it's in cold weather that your heater can dish out trouble. And, unlike an engine exhaust pipe which channels the exhaust fumes Out and away from you, your heater is usually blasting hot air (clean or dirty) right at you. That's why checking com· bustion chambers and exhaust pipe outlets is so important.

CHECK PORTABLE JOBS Stash that chap stick a sec· ond and let's take up a couple of mighty valuable portable heaters, like the Herman Nel· sons and the M40 Slave Kit. Your Herman Nelsons can

If you run •er inside be sure you extend the exhaust stack outdoors. The stack should be high enough to keep the fumes away from the suction of the propeller intake fan. 'Course you never try to get more heat by connecting the ductS or other conduits to the exhaust stack either-that'd be askin' for

You get a certain amount of vibration when the van is moved from place to place and the exhaust pipe coupling could crack. You might check around the weld of the pipe too. The combustion chamber

One point on operating this heater-any heater-you want to be sure to turn on the exhaust fan just in case you've a leaky heater. On some jobs this is done automatically when you shoot the juice to the glow plug to fire up. 6

I

nance manuals on these are, TM 10·4520·201·20 (21 Nov 63) and TM 5·4520·200·12 _ (15 Jan 60).

7

CHECK PORTABLE JOBS Stash that chap stick a sec-

ond and let's rake up a couple of mighty valuable portable heaters, like the Herman Nel-

sons and the M40 Slave Kit.

Dance manuals on these are,

TM 10·4520·201·20 (21 Nov 63) and TM 5·4520·200·12 (15 Jan 60). If you cun •ec inside be sure you extend the exhaust stack outdoors. The stack should be high enough to keep the fumes away fcom the suction of the propeller intake fan. 'Course you never try to get moce heat by connecting the ducts or other conduits to the exhaust stack either-that'd be askin' for

7

.1

M40 SLAVE KIT But when it reaIJy comes to cold weather-talkin' about 50 below-you need a heater to thaw out engines, accessories and such. Here's where your M40 Slave Kit comes into the picture. This baby puts out eno ugh B11J's to heat a seven room house. It'll thaw out just about any piece of equipment you have. TB ORD 390 (18 Jul 52) has all the dope 00 it. But, good as the M40 is, you doo't want to go around teying to heat any shelters, cabs, or the inside of vehicles w ith it. The fuel combustion gases and the air supplied by the blowers are blown out the heater outlet together. So you've got contaminated air for real-the kind that can lay you low for keeps. There's no doubt about it, it's combustion that lets the CO villain on the loose. So where there's fire, that's where you'll find the brute.

~,

..~~~~~Itp --;"~ EYE STOVE PIPES

The same careful attention to the stove pipe goes for the Ml941 tent stove, like it says in TM 10~ 725 (19 Mar 52) ... or any other heater you might have. S

THE WHAT AND HOW OF CO So what is carbon monoxide?

Well the Medics say it's a poison gas produced by the incomplete combustion of carbonaceous fuels. When you beea the in the stuff it goes to work in the blood cells. Like a sponge soaks up water, the blood cells soak the gas up twenty times faster chan they do oxygen. Therefore, the body gets starved for lack of oxygen. If you inhale enough of it-you've had it! Even in small amoums the brute can be deadly.

~-----Lr BUTLOOK OUT FOR THESE

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~ ft0!1 ~,j~~ MENTAl DUllNESS

ABIENT MINDEDNESS

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