PS Magazine - JULY 1985
PS, The Preventative Maintenance Monthly
ISSUE 392
JULY 1985
Everybody knows exercise is good
fr you .
..
look
what
it's
doNe
fr
ARold SchwarzeNegger!
It's equally good fr your JD410
loader Backhoe± ExercisiNg your tractor
doesN't make fr a great Body, But it
heads oF hydraulic system corrosioN.
Exercise keeps the hydraulic system
moviNg ²ee aNd luBes the seals. ³t also
gets rid o´ water that's collected iN the
oil ²om coNdensatioN.
Water iN the oil reacts to frm acid.
³t
causes
µst,
Breaks
down
¶lter
elemeNts and damages control valves,
seals
aNd
such. You'll
get
leaks,
pressure loss aNd ·iLure.
Your tractor Needs a oNce-a-moNth
exercise routiNe wheN you're Not usiNg
it regularly.
Start By ruNNiNg the engiNe at 1,500
¸PM until the oil warms to operatiNg
temperature. This is l¹ke the "stretchº
ing» you do befre you exercise.
\
,.±
oOH
'
1 5h±ULD d²
T³´
MµRE
¶F7N
.1
·0
Operate the tractor fr at least two
hours. ¼e sure to operate every coN½
trol, valve aNd lever. That'll circulate
oil thru every liNe aNd c¾liNder. That's
the ¿exercise.»
¼efre you shut dowN, idle the eNgiNe ;
at À,500 ¸ÁM fr a Âw miNutes uNtil
the engiNe coÃols dowN. That's the same
as the ¿cool down» exercise you do.
¸egular exercise doesN't meaN
Ä
you
can frget aBout changiNg hydrauÅic
¸
oil or ¶lters, tho. You still need to
³´ your JD is going to Be stored fr
chaNge
the
¶lter
every
5Æ
hours.
several months, fllow the storage proÇ
ChaNge the oil and cleaN the iNtake
cedure iN the TM. ³t's oN Áage
63
o´
screeN and the hydraulic pump stroke
the Operators section o´ TM 5È2420È
coNtrol valve ¶lter duriNg the 1,000È
222È14&ÁÈÀ aNd Page 50 o´ the Opera-
hoUr service.
tors section o´ the -14&ÁÈ2.
ContrOl BOx Fix
Jul 8·
·¹
,
±
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