PS Magazine - TB 43-PS-617

PS, The Preventative Maintenance Monthly

ISSUE 617

APRIL 2004
PS Magazine - TB 43-PS-617 - Page 13 of 33
PS 617
APR 04
22
D7G Tractor…
Y
our dozer came back from the paint shop and it looks great—just like new!
Now you’re ready to get in the driver’s seat and start work. Before you do, though,
walk around the vehicle and look at the areas that were covered by tape in the paint
booth.
Cylinder Rods
Any tape left on the cylinder
rods will scrape or cut the rod’s
seals when the rod is extended
or retracted. A damaged seal
leads to fluid leaks, which
leads to NMC equipment.
If you see any tape on the
rods, remove it before starting
the vehicle.
Fuel Fill Line Reminder
While walking around the vehicle, look at the back end of the dozer’s fuel tank.
Some paint shops spray over the fuel tank’s fill line. Without that line, you no longer
have a quick reminder to allow for fuel expansion.
If the line gets covered up, have your mechanic use black CARC paint to stencil a
new fill line marking the bottom of the fill neck—about 3 inches below the top of the
fuel tank.
Below the fill line stencil,
paint CAUTION—DO NOT
FILL ABOVE THIS LINE
TO ALLOW FOR EXPAN-
SION. The stencils are part
of the No. 1 and No. 2
Common shop sets.
Someone
left
tape
on
this dozer’s
cylinder
rod!
that
explains
why we’ve got
to replace
the rod’s
torn seal!
PS 617
APR 04
23
600-GPH ROWPU…
D
ust caps aren’t much good if you don’t use ‘em. And speaking of no good, duct
tape is no good if you use it instead of dust caps.
Keep that in mind when you disconnect the chemical lines from the cans on your
600-GPH reverse osmosis water purification unit (ROWPU).
If you leave those lines uncovered, dirt
and sand get inside the chemical connectors,
making them difficult to operate, and dam-
aging them.
Use NSN 5340-01-506-3696 and NSN
5340-01-307-5989 to get the caps and plugs
for ROWPU’s polymer, sodium-hex and cit-
ric acid cans and the can hoses.
Your ROWPU’s chlorine cans and hoses
use larger connectors. You’ll need NSN
5340-01-307-4394 for the caps and NSN
5340-01-307-2679 for the plugs. By the
way, these newer caps fit better than the old
ones.
But whatever you do, do not use tape for
a missing connector cap. It leaves a sticky
residue that attracts even more dirt and sand.
So play it safe and use the caps and plugs.
Protect connectors
with caps…
Remove
any tape
on cylinder
rod after a
paint job
Paint caution line about 3 inches below top of tank
…not tape
I’ll use
duct tape to
cover this
connector!
no!
use a
dust
cap!
617. 22-23 (C)
2/28/04
11:29 AM
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