PS Magazine - TB 43-PS-725

PS, The Preventative Maintenance Monthly

ISSUE 725

APRIL 2013
PS Magazine - TB 43-PS-725 - Page 3 of 33
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PS 725
APR 13
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D
rivers, the tank’s ENGINE OIL CLOGGED FILTER warning light is very similar
to the check engine light in your POV.
So just like with your car, if you
see the light go on, don’t hesitate.
Shut down now.
Otherwise, the dirt,
sand and other gunk that’s in the oil
could shut down your tank’s engine–
permanently.
Dirty oil bypasses a clogged ±lter,
carrying dirt into the engine. The
bypass feature is to keep the engine
running when you’re on the battle±eld.
But that dirty oil gets into engine
parts. The longer you run with a
clogged ±lter, the more damage grit
and dirt cause.
Mechanics, if the light stays on
after changing the ±lter element, the
problem is probably a bad by-pass
pressure switch on the engine oil pump
assembly. Replace the switch with
Dear Editor,
I noticed while conducting PMCS on an
M119A2 howitzer that there is nothing
mentioned in TM 9-1015-252-10 about
checking the fluid level in the brake
reservoir. Further investigation showed
that the fluid level is mentioned only in the
-20&P as a quarterly check.
Any time you are getting ready to move
the M119A2 you should first make sure it
has enough brake fluid. You don’t want the
brakes to fail while you’re on the road.
It’s a pretty simple check. Just unscrew
the brake reservoir cap and verify that the
reservoir has the proper fluid level–within
1
/
2 inch of the top of the reservoir.
Add this check to your BEFORE PMCS.
James Palmer
TACOM ARFORGEN Field Integrator
JBLM, WA
Editor’s note:
An excellent way to put the
brakes on brake failure.
M1-Series Tank…
If Light Goes ON,
Engine Goes OFF!
M119A2 Towed Howitzer…
Add Brake Fluid Check to PMCS
Stop engine if
ENGINE OIL
CLOGGED FILTER
light comes on
Light
stays on?
Bypass
pressure
switch
may be
bad
I
told
you
my engine oil
filter was
clogged!
You
shoulda’
shut me down
right away!
Open reservoir cap to
check brake fluid level
I
don’t
want
to be speeding
down the road
with
No brakes!
before we
go, check my
brake fluid!
W
HoA!
725 02-03.indd
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3/11/13
11:11 AM
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