PS Magazine - TB 43-PS-496
PS, The Preventative Maintenance Monthly
ISSUE 496
MARCH 1994
l
e length of the indIcator pms on
your how±tzer's recuperator MUst be
MeasUred beFOre ²iring and a³er every
100
RoUnds o² susta±ned ²ire. ´µ the
p¶ns extend too MUch or too little, the
howiTzer ±s N·C¸
EAch tiMe the pins a¹e checkedº yoU
have to reMove the recUperator cover.
»hat gives you plenty oµ cha¼ces to
daMage the recUpe¹ator gasket½
A
daMaged or M±SS±¼g gAsket leTs
corros±on and dirt In the ±nner cyl±nder¾
¿hat Means LosS oµ nitRogen preÀsUreÁ
YoU can prevent alL thIs troUble by
taking a Little MoRe caRe when yoU loosen
the cover to Make the pIn checkÂ
Ne±ther of the two screws hoLd±ng
the cover ±n pLace Bas to
b
reÃoved
to open the coverÁ Äosen boÅh screws
to the stop p±n and gentLy pry the cover
away ÆoM the recUperatorÇ ·Ake sUre
the gasket ±s noT toÈ looseÉ
Loosen
Both
PS 496
2±
Ênce the gasket ±s coMpleTeËy looseÌ
tÍrn the coveR so yoÎ ca¼ get to Ïhe pi¼s
and ÐÑid vaËveÁ
Òf yoU looSen jUst the top screw and
Ïw±st the cover openÓ yoU tear Up the
gasket- and yoU donÔt need that actionÉ
ÒÕ the gasket is shotÖ report it!
YoU× Mechan±c will eyebaËl Page
²-3³
oµ »·
´µ¶35·µ3¸¸µ¶¹º¶
fØr the
procedUres. NÙN
»33·¼½µ·3¾µ¾¾¾8
±s the Ú¶ght gasKet to MaKe the µÛXÜ
DonÝt leave the cove× Þoose to save
tßMe on checKà¼g the p±ns next tiMeá
eitheÚÉ ¿hat gives dI×t and co×¹osion the
fØothoLd it needsÉ
Ma¿À
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