PS Magazine - TB 43-PS-638

PS, The Preventative Maintenance Monthly

ISSUE 638

JANUARY 2006
PS Magazine - TB 43-PS-638 - Page 10 of 33
Hydraulic Oil Strainer
Keep your oil supply covered and protected. Wipe off any sand around the earth-
mover’s filler cap before removing it to add hydraulic fluid.
When it’s dusty, use a clean
rag around the oil can nozzle and
filler hole while you add oil to
block out the dust.
Also, be careful when adding
oil. The oil can nozzle can tear a
hole in the side of the strainer or
knock out its bottom. Then sand
has a straight path to the tank.
If the strainer is damaged or missing, tell your mechanic.
Blade Switch Brush-Off
Bulldozing through heavy brush can
damage the blade-down limit switch that’s
mounted below the cab door. Limbs pull
wires off the switch or tear it off the vehi-
cle’s frame.
Without the switch, the DEUCE can’t
run in the EARTHMOVING mode. Then
your construction operations come to a halt.
So, eyeball the switch to make sure it’s in
place and not damaged or disconnected.
Call in your mechanic if it’s damaged or
dangling.
PS 638
JAN 06
17
DEUCE…
Coolant Tank Snap-Cap
Constant exposure to the elements causes the cap on the coolant level tank to dete-
riorate.
Eventually, the cap breaks
apart, allowing water, dust
and sand to get into the
coolant. That’s not good!
Eyeball the cap for
cracks. If you find any or if
the cap is missing, get a new
one that snaps in place with
Battery Clamp
Bouncing around in the rough stuff loosens battery clamps. A loose connection
keeps your battery from recharging and your dozer from starting.
Before the day’s opera-
tion, gently test the tightness
of the battery clamps. Using
your thumb and two fingers,
try to move battery clamp
connections.
Then make sure the bat-
tery indicator and ammeter
gauge are into the CHARGE
range before you go.
T
he DEUCE is a tough workhorse that needs lots of PM while working in the rough
stuff. Operators, here are some PM pointers that will help your earthmover at the
worksite.
Strainer
in good
shape?
Free of
dents and
tears?
Heavy brush can damage
blade-down limit switch
Connection
loose?
Replace a
cracked or
broken cap
with NSN
5340-01-
474-3118
without
PM, I got
no oomph!
{urghh!}
638.16-17(C).qxd
11/28/05
7:33 PM
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