PS Magazine - OCTOBER 1976
PS, The Preventative Maintenance Monthly
ISSUE 287
OCTOBER 1976
i
AIR-HYDRAULIC cYLl.NDERS ±²²
Ii[±@
... OR BE
.B
Too many operators and too many
mechanics are causing too many brake
aR-hydraulic cylinders to be dumped
on thEr support for rebuild±at about
$50 a crack.
Drivers are not draining Ihe air
reservoir tanks daily±after every
operation² ,Water in the tanks is
getting into the cylinder and causing
damage.
HEAVeN
SAVf ME
FROm THIs CLoD
.
..
Be±²r³ h´ bµ¶aK·
I
¸¹ ºN' Unc» ¼½t¾¿
What started out as a perfectly good
air³hydraulic cylinder is kicke´ right
back for rebuild.
dÀÁÂY kÃÄÄÅ
µf you can drain the air tanks on your
2Y¶³ton truck or 5·tonner (TM-211³
seri¸s) without getting your knees
dirty¹ that's great.
But you've got to squat or hunker
doºn to get a» the air tank drain valves
Mechanics are not bleeding the on those trucks. They're under the
cylinder when they instalL a new or truck. No» too easy to reach. But¹
rebuiLt one. So the cyLinder won!t work remember¹ that squat ¼n' reach can
right. Or it poops out in a short time. save 50 bucks½
16
ÆÇÈÉÊËÀÈ ÌlÄÇdÅ ÈYÍÎÏdÇÁ
¾very good mechanic kno¿s »o
the drain valve easier² ÀheyÁ re Âade
Ãleed »he brake HydrauLic sys»em any
from scrap metaÄÅsteel rods and
»ime a connec»ion has ÆeeÇ »aKen
straP irCȲ
The too³ is kept ´n the motor park
hµ¶dy for a³³ drivers± It's made of s·rap
pipe a¶d ³ooks ³´ke t¸´s²
TO-·
-
-36"
Jo=:±²'³´
µ
¶
W'
V7'±
·¸ ¹
%"
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.
(
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D
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U
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»
±
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¼
± 1
µ/¶,·
h¸r¸¹s
an
ot
½
¸
r ¾oo³
fOR
¿Àe job;
IÁs a pÂÃÄÅ oF Æ-in
Stºap ir»n¼j½2 inc¾
wid¸
µnÇ
¿³
¶ÈÉÊs ³oËg±
TÀÁ
s³oÌÍn oneÎ
enÏ GÐaBs
ÂÃÄ PÅÆCoÇkÈ
ÑÒe
DÉill¸Ê ËÌl¸
´n t½Ê otÓeÔ
Índ
ÕaKes a
ÎÏd
(or
sÈ
r
e
Ðd
r
IvÑÒ) to
ÖO×m
½
Â
Øe ÙµnÚÛe,
UsuaLly¹ the air tank drain cock Éas
to be repositioned so the tool can Lock
onto itÊ Ëoating the drain cock's
threads with sealing compound wilL
keep it in the right position.
aPar»²
Na»ch¹ this goes for instaÌLing aÈ
airÍHydrauLic cyLiÇder² FaÎÌÏre »Ð Æleed
leads to cyLinder faiLure. Ñ»Òs tha»
simPle²
ÓÔtÕn truÖ×Ø ÙÚÛÜ6Ý-seriÞsßàM
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