PS Magazine - TB 43-PS-714
PS, The Preventative Maintenance Monthly
ISSUE 714
MAY 2012
12
PS 714
MAY 12
13
PS 714
MAY 12
D
rivers, when doing weekly PMCS on your -A0 and -A1 model FMTVs, make sure
you do a thorough job with the exterior checks. And don’t forget to take a look at the
front cab support mounts. The upper mount, NSN 5342-01-371-7973, and the lower
mount, NSN 5342-01-371-7258, can dry rot over time.
First you’ll notice splits in the rubber. Soon after that they’ll begin to fall apart.
Without the mounts, every bump makes the cab rock and bounce. And when you
raise or lower the cab, it can tilt, putting extra stress on the hydraulic struts. For
trucks with the weight of add-on armor, those stresses are even worse.
Broken cab mounts can also lead to squashed radiator hoses that can lead to
overheating.
So if you notice cracks, tell your mechanic. New rubber mounts can save you a lot
bigger repair bill later.
Dear Half-Mast,
Our National Guard unit has a lot of low-usage vehicles. I’ve heard
that we’re supposed to double the time on service intervals, but keep the
vehicle’s mileage the same. Is this cited in any regulation?
SGT S.C.
Dear Sergeant S.C.,
Service intervals for equipment that qualify as low usage can be extended in
accordance with Chapter 4-2 of AR 750-1,
Army Materiel Maintenance Policy.
The AR is very speciFc on what equipment qualiFes based on usage, either in
miles or hours.
Some equipment is exempt and the vehicle’s service interval cannot be extended.
The chapter is a little lengthy and detailed, but it’s been the regulatory policy for
a very long time.
By the way, this reference used to be Chapter 3 in the
Maintenance Update
, DA Pam 738-750, but became a part of
AR 750-1 when the maintenance updates went by the wayside.
MaintenanCe ServiCe Intervals
FMTV…
Tactical Vehicles…
MaintenanCe ServiCe Intervals
Report cracking on cab support mounts…
…before
they start to disintegrate
ouch!
my front
cab support
mounts must
have dry
rotted…
…and now
I’m
over-
heating!
my radiator
hoses are
squashed!
DO YOU THiNK THAT
WE QUALiFY FOR THE
‘LOW-USAGE’ SERViCE
iNTERVAL?
...I THiNK WE’RE
PROBABLY GOiNG TO
TAKE THE DEFiNiTiON
OF
‘LOW USAGE’
TO A
WHOLE NEW LEVEL!
paL…
714 12-13.indd
1-2
3/22/12
5:03 PM
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