PS Magazine - TB 43-PS-705
PS, The Preventative Maintenance Monthly
ISSUE 705
AUGUST 2011
7
PS 705
AUG 11
M
When
the
engine
is
mated to the CTX-200-4A
transmission
and
mounted
in the carrier, you’ll also
need
to
make
sure
the
screen is in place. With the
engine stopped, remove the
air
intake
hose
from
the
turbocharger air intake horn.
Eyeball
the
turbocharger
at the intake horn for the
screen and seal.
No screen? Check inside the air intake hose. The screen and seal may have gotten
stuck inside the hose when it was removed. If you Fnd them there, reinstall them.
If the screen is missing, order a new one with NSN 2815-01-281-4930. That NSN
also brings the seal. You’ll Fnd them listed as Item 24 in ±ig 39 of TM 9-2815-205-
34P (Oct 05).
Until the new screen and seal arrive, you
can use the turbo protection shield, NSN
4910-01-127-7959, while working around
an open turbocharger air intake horn. This
shield is part of the direct support special
tools kit and is listed as Item 25 in ±ig 68 of
TM 9-2815-205-34P. Remember, this shield
is a special tool, not a repair part. It should
be used only as a
temporary
Fx.
When replacing an engine, look for the guard screen and seal as you remove the
replacement engine from its shipping container. The screen and seal should either be
installed on the turbocharger air intake horn or tied in some fashion to the engine.
If the replacement engine did not come with the screen or seal, submit a Quality
DeFciency Report (QDR), making sure the rebuild facility is identiFed. You’ll Fnd
the rebuild facility identiFed on the engine’s data plate.
Scren’s thE Thing for
TurbochargEr ProtEction
M113A3 FOV…
Scren’s thE Thing for
TurbochargEr ProtEction
Remove air intake hose and look for
screen inside turbocharger air intake horn
Use turbo
protection
shield, NSN
4910-01-
127-7959,
as a
temporary
fix only
well,
looks like
we’re gonna
have to do
sOme work
on this
carrier’s
engine!
have you
checked to
see if the
turbocharger
air inlet
screen is
missing?
you
remember
what
happened
last time
somebody
didn’t check
it out?
I
remember!
that’s how my
hand goT thiS
way!
for more info on
the turbocharger air
inlet screen, check out
tacom gpa 11-008. this
is a new website, so
yOu’ll have to register
with your CAc.
M
echanics, when working around the M113A3 ±OV’s 6V53T engine, make
very
sure the turbocharger guard screen and seal are mounted on the air intake horn.
Without the screen, just about anything can be sucked into the turbocharger’s
impeller. The turbocharger is damaged by any debris that gets sucked inside. Even
more importantly, you’ll be in a world of hurt if your Fngers and hands get too close
to the intake.
Do not
run the engine unless the screen is in place and properly bonded with its
seal to the turbocharger air intake horn.
705 06-07.indd
1-2
7/8/11
5:20 PM
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