PS Magazine - TB 43-PS-498
PS, The Preventative Maintenance Monthly
ISSUE 498
MAY 1994
21/z·
and 5-ToN Trucks .
.±
Y ht LfT
(±w±1
echanics,
·
wheN replAciNg an AIR/
hyd±aulIC brAke cyLiNde± BecaUse of a
Leaky seal² make SuRe you bLow out the
veNt ³´ne wIth CompreSSed AIR.
'
cyµinder¶ ¸f yo¹ See Fluºd» RepLace The
¼F you don½t¾ A¿y BRake fLu´d left over
F±om the b¹m CylÀnde± wIlL Be p¹shed
out of the veNT LInE wheÁ yoU ope±ate the
brakes ÃhIS caN tRick you ´nto thINkÀng
the (Äew cyLINdeR alÅo hAs a Bad SeAÆ
Çome perfectLy good cyLiNderS ARe Be-
INg repLaCed BecaÈSe oÉ
a
s¹spected
B¹m SeaLÊ
Ão make SURe a New cyLÀNdeRËs NoT
leakiNgÌ dIsCoNNect the vent LINe at the
2±²³-
tON tRUCks ²³´
LeakINg cyLÀNderÍ
Adapt Low Air Switch
I
FtHe Low aÀR
pµeSS¶µE
Switch oN the AiRÎ
hydRaulic valve on a 21ÏÐÑton tRUck Is
a
tight fit² get an adapteRÒ
WhÀLe Óll low aiR pReSS¹Re SwitcheS
fµ
theÔe tRuckS come with ÕÇÕ
·930¸
0¹¸¹·8¸1·76,
they caN be made by diFÖ
F×Rent compaNÀeSØ ÙveN thoUgh the F¹nCÎ
tion iS Úhe sAmeÛ Size aÜd Shape can vaRyÂ
IF
the new switch doeSn½t FIt easiLyÝ
oRder adapÞeR¾ ÕÇÕ
4 73¹
¸
¹º¸2»»
¸
1388¼
P½ ¾¿À
Á¾
MAY¿¾
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