PS Magazine - MAY 1986
PS, The Preventative Maintenance Monthly
ISSUE 402
MAY 1986
M1 Tanks .±±
High on the list of things you
crewmen can do without is fuel in the
hull.
That's one of the problems you
can have if the fuel line check vaLve
gets plugged open by fuel crud and
the fiLler neck vent system's not
working.
If the fuel line check vaLve, NSN
14
You may also ±ave fuel escaping
overboard or into the hull because
the filler neck vent system's not
² working right³ ´oo much pressure in
²³´µ,"-
r= Jl
i
¶
_
·
¸
_
µ¶
.
· the fuel tank will force fuel out the
li
!I
±²f-
:
fiL¸er cap³ Depending on the condi-
¹ ti on of the fil¸er neck sea¸, you could
º get fuel in the hull³
±820-00-289²2±99,
gets p¸ugged, fue¸
can flow from the rear tank to the
front tank³
Drivers can keep an eye on the fue¸
gage and catch fueL "moving» from
the rear tank to the front³ ´hat's one
tipoF there's something wrong.
¼ook for fueL stains at the
#I
shock absorber hous½ng
on either
side of the tank³ ¾uel in the hull will
seep out there ³
Also look for fuel slopover on the
hu¸l and on the ground around the
tank.
You mechs can find info to replace
a plugged check valve starting on
Page
±-2±
of ´M
9-2350-255-20-³-3-
2.
If you've got filler venting prob¿
lems, replace the f½ller cap, NSÀ
29³0-0³-083´567µ.
Once the front tank is fullÁ the fue¸
may overflow³ If the fiLler neck seaL is
good, the fuel drains onto the ground³
OtherwiseÁ the fueL goes into the hul¸³
If the seal's
badÁ
your mech wilL
repLace it with NSN
5330¶0³-083-56³3.
M992 F³re Sensor Check
MAY·¸
Getting a fauLt Light on the auto-
matic fire extinguishing system test
and aLarm paneL when you pull your
ÂÃ CS? ´he fire sensors are very
seÄsitive to direct or reflected sun-
Light, so close aLL your ammo carrier's
doors and hatches³ Rerun the test³ If
the ÂASS ´ES´ light fÅiLs to come
onÁ caLL your mech³
MAY ·¸
1¹
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