PS Magazine - TB 43-PS-437
PS, The Preventative Maintenance Monthly
ISSUE 437
APRIL 1989
21-,
5-Ton Trucks .±²
hat little piece of Cork that goes on the rear wheel drums of these trUcks may
not Look imporTant, but it is. It keePs oil Fom washing grease oUt of the wheel
bearings. W±thout grease, the bearings buM up. ²he oil will get on the brake
drUm, the lining and the brake shoes.
Oil and brakes don't mix. ³he brakes will go out and caUse an accident all
because of a small piece of very imPorTaNt cork.
´il iN the axle hoUsiNg travels out
to the end of the axLe housing sPindle.
²he oUter seal blocks this oil Fom get-
ting into the hub, except where the
spindLe keyway prµvides a handy chan-
neL under the outer bearing.
±²
³Hat's where tHe cork insERt doEs its job. It pLugs tHE kEyway undEr the bEaring
aNd stops oil Fom ge¶tiNg ±Nto thE hub·
TESe PICfUR³ sHOW
tM´ µ¶ up For
·m¸ Z '¹ º»¼N
tRUClS ³´µ¶
B½ ¾h¿ cÀÁK
IN·E¸' GOe¹
iº
ÂlÃ
»A¼ WaY
½¾
5ÄÂÅn
TRUCK !
¿ÀL
sÁÂL
ÃÄÅÆÆ ÆÇÃÈÉÅÊ VÉÇw
¸ork ±nsE¹,
ÆÇÆ
5330º»0¼348¼8365, is usEd on tHE 21½ºtoN s¾ while iNseR¶,
ÆÇÆ
5330¿0À¿Á33¼7262, is usEd oN aÂL 5ºtonnErs. ÃErE's whEÄe it goes:
HËb
BÁÂÌÀng
ÍoÎk
ÏÁÂL
ÐnÑÒÓ
·@
ÊËÔ
ÕoÖk×ÂshÁÌ
ÊËÔ
³he Cork insERt is jamÅed undEr thE beariNg by thE seaL kEyway tang wHen
prEssurE ±s aPpL±ed to thE nut.
AÈÉ 89
±3
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