PS Magazine - TB 43-PS-546

PS, The Preventative Maintenance Monthly

ISSUE 546

MAY 1998
PS Magazine - TB 43-PS-546 - Page 11 of 51
The real pRobLem is the raIsed seams on ±He undeRside of the FLange on both
sIdes of the cap. ²he seams are PaRt oF ±He mold FlasH paR³ing Line From the
Injection mo´dIng process used to create the caPµ
WHen ±he Cap is screwed in
-±²³´µ
pLa¶e, ³he raiSed SeamS PReSS
agaIns± ³he hub and o-RIng· ¸he
¶oncen±ra³ed preSS¹ºe on ±He
seams make ±He Cap CRaCK»
You ¶an preven³ this prOb¼em
by FIlIng oFF the raised poRtIon
oF each seam beF½Re inStallIng
new ¶aps¾ Wi±H ¿He raised
poRtIon oF the seam goneÀ the
PreSSure disappearsÁand So do
cracÂed hub capsÃ
.¶· by filing seams Flush witH Hub cAp surFace
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