PS Magazine - FEBRUARY 1972
PS, The Preventative Maintenance Monthly
1972 SERIES, ISSUE 231
FEBRUARY 1972
Dear HalL-MAst.
we· re being karate±chopped on ouR
440H² Grader³ Here´re the
5
bloWS
that haCK us
µ
1.
¶I¸C¹e rEversE ºontro¹ shafT bends
µ
2
»eanIn¼ Whee¹ Control shaF bends½
3³¾Ront dNve shaft bre¿s³
4ÀÁÂrC¹e reverse geaà bearÄng ÅaĹsÆ
5±
Çandem Wheel breaÈsÉ
Do you ÊnoW hOW We ºan avËId those
kl
sWÌpes?
MSGg²D³M´
Dear MSG G.D±M²,
Try these maneuvers ³.´
Lµ
Train opErators not to raIse blades so
hIgh as to bend circle reverse shafts
agaInst the µain frame¶
¶·
LeanIng wheel shaft bends co·e from
collIdIng with blade lIft ar·s¸ Make It
a rule that oPerators keeP blade lift
arms outboard of top center¸
3¸
Front axle oscIllatIon stoP blocks will
keeP the dRive shaft fro· separating
(It telescopes) if left in PlaCe. They"re
no¹ shIpping blocks¸
' ¹
4º
Make gear thrUst bearing check a paºt
of youR »M list, and call on support
to help check the whole cIrcle adjust¼
ment every
90
days½
»¼
¾etorque wheel nuts after the fIrst
½0
servIce hours, then agaIn after the
next
½0,
and every
¾0
days theReafter¸
j7
A
lw
r
CHECK
ANd
ReTORQUE
nUTs
MIght be you need the new, reIn¿orced
steeÀIng-arµ and balÁ assembly.
Then agaIn, you could be turning the
gÀader too sharPly under load.
The assembly comes under FSN
¶»¾0-
½90¿87»4
(»N
Vr ¶7¶7)À
Ãven wIth the latest
and the best, though,
a breakdown can haPÄ
Pen, If you don't watch
out.
Never turn the front
wheels sharÅly agaInst
their leaning position¸
And backÆng out, tÇrn
Èhe wheels the same
direction they are leanÉ
Ing till you straighten
out.
THE
RIGHT
STEER
Don't forget, too, IÈ's the scarifier first to soften haRdÊ rough suRfËces .Ì. and moVe
slowly when youÍre bulÎdozIng with the road grader.
Ïn short put motorized horsesense Into operationÌ
6Á
i U.S± GOVERNMEnT PRINT!tG OFfICE: 1972 -759²033/³
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