PS Magazine - APRIL 1984
PS, The Preventative Maintenance Monthly
ISSUE 377
APRIL 1984
YOU'D BETteR CM±K
your H²6 Sl³h´ GLs
µ1F¶· ¸¹º &»¼ ½¾
W¿ÀdÁ ÂN fIÃj;.
You won't get very fr in your M 113-series carrier iF your road wheel hubs
are low on lube.
That's why checking the hub sight glass aFter every operation is part oF the
PMCS. But, there's a little bit oF con±sion betWeen what TM 9²2300²257²10
says and what the LO schedules.
Your PMCS says check to see that there is either grease or oil in the hub.
That's pret³ easy iF your carrier still has oil-lubed Hubs´ You just look Fµr oil
halF-wa¶ up in tHe sight glass.
IF your carrier uses grease in the hubs, tho, looking at that sight glass may
not tell you iF there's enough grease in the hub· And, your LO says the hubs
are ¸illed with grease every 75 hours, 750 miles or quarterly.
l
So, do you t¹ke a chance there's
4
enough grease in a hub and let it go unº
til the scheduled lubrication is due? No,
you don't.
Any time you believe grease is need»
ed, you add it. You might ¼el the hub
and notice it's getting warmer than
usual, or you might hear an odd sqUeak
that you didn't hear be½re¾ Either way,
pu¿p grease into the Àub until it comes
out the pressure relieF valve.
Áhat way, you've done your PMCS,
and yo know your carrier has the lube.
APR 8
M 113A 1 / A2 VehicLe Fami±y .²³
Screwing Up the Works
Ãoose screws in ¶our power train universal JoÄntÅ can't be too serious, rightÆ
Çrong! Loose screws could wreck your Vehicle, damage the equipment and
mayÈe even kill sÉmebody.
ÊË ÌÍur carrier has tHe 6C βJoints, keep the screws tight with hardened, Ïat
washersÐ
Tab²lock washers were used in tÑe original eQuipmentÒ ÓardenÔ, Flat washers
were tried nextÕ Öhen disk²lock wasHers were issued. Öests and research
proved that Àardened, Flat washers are the ones ×Ør the JobÙ
·
IË ¶ou'Ve got either disk-lÚk or Ûb-lock washers and they're holding the screws
tight, leave 'em aloneÜ DonÝt
Þ
meßs with a winnàrÒ
±
But ÄF, ½r some reasoá; âou dãsassemble the power train, thatäs a good time
to insåall the haræened, ×lat washers´
çèU
Äii
neeæ 2 Kinds oË cap screws and 48 washers (éSé ê310²00²000ë0079)ì
íor all Mê48/Mîï0 Vehicles, you need ð6 screws, cap, ï/8²24
x
1-in, ñSé
530êò0-269²32ó6, and ï2 screws, cap, 3/8²24
x
1²ï/4²in, éSñ êï05ò0²269²
ï24ðÐ
íor all other Mô õ3Aô/A2 Vehiö÷es, âou need 2ø oË the ²ï2ï6 screws and 24
oË the ²3241 screws.
ùse only new hardware that's clean and not lubricated. Replace any 2²in cap
screws in the ú²Joints with 1 ï/4²in screws´
²
TorQue the screws to ïêû0 lb²Ft when using the torque wrench without adapåür.
Çhen using a torque wrench adapter, adJust the torque Values
ccordingly.
,
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