PS Magazine - TB 43-PS-424
PS, The Preventative Maintenance Monthly
ISSUE 424
MARCH 1988
TacticAl VehicLes .±²
Making Couples Compatible
If your semitra±ler gets h±tched to a M931AL or M932A2 5-tonNer, ±t's not a
marr±age made ±n heaven.
Th±s coup²±ng Has ±³s share of F±ct±on´espec±a²²y ±n ³he tURs, where the tra±²er's
²anD±ng gear shoes rUb tHe tractor's t±res. That's not good µr e±ther par³y. You
end up w±th bad t±res and busted ²and±ng gear.
¶o need µr d±Vorce, ·o. There's a way to work th¸ngs out and stop the F±ct±on.
¹ere's wHat you need µr each ²eg:
ITEM
DoublE ³oop CHain (12 inCHES)
´iNks, End lap (2 EaCH)
µNap ¶ook ·¸ EaCH)
NSN
4010-00-186¹9414
4010-01º144»1734
5340¼01-034-6798
¹ere's howº
»asten the snap hook oN one end of
tHe cha±n and a ²ap
l
on the other.
On the rear s±de of the ²and±ng shoe,
dr±²² a 3/8¼±n ho²e ±n the m±dd²e of the
½ange.
PUt an end ²ap ²¸nk ±n the ho²e and
cr±mp.
Attach the cha±n and br±ng ±t over the
²eg suppor³ and fasten ±t. ¾¿s'²² ho²d the
sHoe out of the way wh±²e the ²aNd±ng
²eg ±s up so ³he sHoe won't rUb the t±res
wh±²e tuÀg.
m90±-er²s Fu³l
Tanker
The ²aNd±Ng ²egs oN ·e M967, M969
and M970 5,ÁÂ ga²loN Ãe² Äkers are
Atach
chain
ov´R L´g
µUppo¶
too short to coup²e the tra±²er to the ÅÆh whee² of the M931AL/M932AL tractor.
You can he²p th±s odd coup²e Çake eNds meet w±· a s±mp²e sw±tcheroo. Get
your commaNder's OK to rep²ace the ²aND±Ng gear shoes w±th ÈSÈ 2590ÉÊ-
177¼9980. These are the shoes used oN the M872 sem±tra±²er.
Ëse the groÌnd boards uNder ³he ²and±ng gear, too. ¾h±s ra±ses the Íer's FoNt
end eNough to hÎk up.
8
MAR 88
KE±P ThE GrOUNd cONN±²TEd
·
WiTH THE TIGHTENINg OF THE
BOLT AND WASHEQ
AND A COATINg OF RTV .±²
³´µ 'OU¶LL KEEP ·OUR TAILL¸gHTS
gLOW¸Ng³ WHENEVEQ
'OU WANT THEM TO BE!
¾he B²t ·at ho²ds the ϱ²²ight ground w±re to the Fame of a two¼whE²Ð tra±²er
v±brates ²oose and ²ets water corrode the
ground connect±oN.
Ñeµre you Ònow ±t, the ta±Ól±ghts go
hayw±re. Ënpred±ctab²e ta±²²±ghts are
acc±deNts wa±t±ng to happeN.
There's an easy Åx. C²ean the coNÔ
nect±on between the termina² aNd FÕe.
T±ghten ·e B²t Öd ²×k washer over ·e
Ørm¸na². Coat ³he bo²t and teÙ w±³h
ÚTÛ sea²ant, ¶S¶ 8Ü0¼Ê¼118Ý2695.
ÚTÛ sea²s out mo±sture aNd keeps the
bo²t t±ght.
M796½ M796¾¿ TraILers ²ÀÁ
³´ SOµ¶ET c·rrE²TIO¸
Þart of the too² ²±s³±Ng µr hub aNd drum rep²aceÇent on Þage 4ß88 of ¾M
9Ý2330¼287¼14&Þ ±s wroNg.
It ³akes a 3ݱN, 8¼à±nt by 3/4á¸n square Dr±ve whee²¼âar±ng s×ket to rep²ace
the M796 bo²ster tra±²er's hub aNd drumãnot the 6¼à±Nt socket ²±sted ±n the TM.
Order ±t w±th ¶SÈ 5120äʼ1ܼ4076.
The M796AL takes a 3 3!8-å whE²¼bear±Ng s×ket to do the job. It's not ca²²eæ
out ±N the ¾M, buç you can order the socket w±³h ¶SÈ 5120¼01¼105¼8593. Ño·
s×kets w±²² be ²±sted as sèc±a² too²s ±n the Next rev±s±on of the TM.
MAR 88
9
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