PS Magazine - TB 43-PS-705

PS, The Preventative Maintenance Monthly

ISSUE 705

AUGUST 2011
PS Magazine - TB 43-PS-705 - Page 11 of 33
18
PS 705
AUG 11
T
he MaxxPro’s hood spring is known to rub against the engine’s air intake cooler
when the hood is being opened and closed.
Enough rubbing creates a hole in the cooler. That causes an air leak and a loss
of intake pressure. Then the engine doesn’t get enough cool air to keep it running
smoothly—especially in hot weather.
Want to stop the rub? Cut
a piece of 1-in tubing, NSN
it around the hood spring. You
can use duct or electrical tape
to hold the tubing in place.
E
nough condensation will short out the linear detector circuit board for the MaxxPro’s
Fre suppression system (±SS).
The circuit board is mounted in a box
under the vehicle’s hood. Water that forms
under the hood’s surface can get past the
boxes. Once inside the box, water will
short out the circuit board, making the ±SS
non-mission capable.
To keep water out of the box, use a dab
of sealing compound, NSN 8030-01-014-
5869, and smear it around the box’s lid on
the outside of the seal.
MaxxPro MRAP…
Snub the Hood Spring Rub
MaxxPro MRAP…
Circuit Board Shorts Out!
Look here…
…to see this rub spot
Wrap spring with 1-inch tubing and electrical tape
Use a dab of sealing compound around box
nsn 4
7
20-01-422-0242
gets you a fOot of
1-inch tubing!
…it’s probably coming from
a rubbed hole in the cooler’s
metal-framed housing.
if you hear a
whistling noise while
the engine is running…
hey! what’s
with this
whistling
sound
?!
705 18-19.indd
1-2
7/8/11
5:20 PM
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