PS Magazine - JULY 1981
PS, The Preventative Maintenance Monthly
ISSUE 344
JULY 1981
'
1
·.
I
!
I
-•·
i
1±²
M915±Series TRuck² .
..
Pusher
AxlE Haz±Rd
A "pratfall± in the movies or on
T
may
be
funny, bUt
you
won't die
laughing if you take a header off the
pusher .axle Wheels on your M915-
²
series truck³ You may ´ind up µith
·
anything
¶
from a skinned knee to a
BrOkEn necK¸or Worse!
Three models in ¹he M9º5 fLee» are
equipped ´ith
a
pusher axle¼the
M917
20½ton
dump
truck,
M919
concrete
mixer
truck
and
M920
meDium equipment transporter³
This 3rd rear axle is used
¾
to
¿
take
some of the
À
Weight off other
Á
axLes
Âhen the trucÃ's carrying a heavy load³
Ähen the
pusher axLe WheeLs are
loWerÅd to
the
groÆRdÇunder
air
pressure_ thÈ
²
ÉheÊLs take over sËme
of the Load ÌÅight³
Íut
the
´heels
are
free-rolling
When the pusher axle's in the raised
position³ If you step on a ´heel, it'Ll
spin right oÎt from under you!
Ï
Ð
For your oWn safety, never use the
pÑsher axle Wheels Òr a step³
For extra saÓty, LoWer the Wheels to
the groUnd When parking your truckÔ
For the best safety, tho, don't step
on the WheeLs even if you think they' re
on the grÕundÔ
SE
WARN³NG
PU³HE´
Ö
AKLe, Pag±
d
IN YOUR
tM !-23²0³´7µ¶1·/
I
M916µM920 TRactoR TRuCK² .
.±
·
T²
1
nSf³´
pUmµ t¶·N¸¹o¶ND
¶
, L¸
¹
'
p¸m ¹oº »¼V½
D
×id you change the transfer oil
coPler pump
Ø
spacer from the coldÙ
WeatHer
position
to
the
Warm-
Weather posÚtion?
Û
²
You've got to move tÜe
Ö
spacerÝ
likÅ it shoWs on Þages 7ßà0 thru 7-16
iN TM 9-232á-273-20âor your M9º6
or M920 tractor WiLl be in deÅp
troubleÔ ãhe oiL cooLer Won't Work³
The oiL WilL get too
äå
hot³ You can burn
out the transfer gears and seals³
Ähen æou pulL æour Warm-Weather
sÅasonaL sÅrvice, move thÅ spacer
from betWeen
ç
the puèp
é
and the
transfer case to êts stoWed ëosition at
ì
the rear of the pump³ Tíis engages the
puîp¸the oiL cooling system WiLL
Worïð
yoñò
cold-Weather seasonal
service time rolLs arouód, move
ô
the
spacer from its sto´ed position to
betWeen thÅ pump and the transfer
case³
º»N¼l½ FO¾ J»ck
õeed a handle for your hydraulic jack? Try õSõ 5120ö00÷357½6º06³ I¹'s a
steeL tube 20 inches Longø, a shade under
v
inch in diameùter and With a s
´
ot in
one end to release jack pressure³ It's listed ún the GSA Tool Catalog³ It shouLd do
the job for mos hydraulic jacks³
¾5
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