PS Magazine - TB 43-PS-689

PS, The Preventative Maintenance Monthly

ISSUE 689

APRIL 2010
PS Magazine - TB 43-PS-689 - Page 10 of 33
16
PS 689
APR 10
17
PS 689
APR 10
Cool nights and hot days make
the cover expand and contract
slightly. Week after week of that
can warp and crack the cover.
Before you know it, the cover’s
leaking and the APU won’t start
because of a lack of fuel pressure.
Inspecting the APU is part of
your before- and during-operation
PMCS. Eyeball the cover closely
during the inspection. If the cover
is damaged or already leaking, call
in your mechanic. He’ll replace it
These
new
tire
and
wheel
assemblies are ready for installation
and come as stud-piloted or hub-
piloted, depending on your model
trailer.
Stud-piloted
wheels
use
studs to line the wheel up on the
vehicle. The center hole on hub-
piloted wheels lines up on the brake
drum hub.
The
stud-piloted
one-piece
wheel assembly for M871/A1/A2-
semitrailers comes with NSN 2530-
01-506-4129.
The
hub-piloted
one-piece
wheel
assembly
for
M871A3/
M871R/A1R and M871A2R/A3R-
semitrailers comes with NSN 2530-
01-508-2786.
M1000 HET Semitrailer…
find fuel leaks early!
M871-Series Wheel Rim Assemblies
drivers, a fuel leak is
one of the last things
you need when trying to
start up the auxiliary
power unit (apu) on your
m1000 het semitrailer.
but if you don’t
keep a close
eye on the apu
fuel filter’s
plastic cover,
it can happen.
Check fuel Flter cover for cracks
uh-oh!
looks like
you had
a little
accident!
maybe
you
should be
taking a
closer look
at my
apu!
because all of the 22
1
/
2-ton semitrailers
are switching over to a one-piece rim wheel
with radial tire assembly once the split-
rim assemblies for bias and radial tires
are used up.
by the way,
do not mix
bias and radial
tires on the
semitrailer!
why is PS telling me
to keep these nsns
handy for when it’s
time to order new
wheel assemblies?
689.16-17.indd
1-2
2/22/10
4:39:10 PM
Click here for a copy of this article to save or email.
Click here for a copy of this article to save or email.
Back to Top
Back to Top