PS Magazine - TB 43-PS-593
PS, The Preventative Maintenance Monthly
ISSUE 593
APRIL 2002
“If a nut loosens
enough, you can't
control how much fog
oil is being sent to the generator.
Fog oil could flood the burner.”
APRIL
MAY
JUNE
APR 02
46
PS 593
APR 02
47
M157A2 Smoke
Generator…
Here are
a couple of
ways to
snuff
out those
problems.
“But
coating
the inside of the
fuel pump with
a corrosion
fighter like
15W-40 oil
stops
corrosion.”
So if your
M157A2s are going
to sit, run oil
through the fuel
pump like it says
on Page 2-22 in
the M157A2's TM
3-1040-283-10.
If the nuts get too
loose, the control
panel shakes enough
that the controls and
soldered connections
are damaged.
“Do it
monthly
as
long as the
M157A2 sits.”
I have to
keep on
smokin
’,
and that’s
what this is
all about.
Sitting
Sitting
unused
for long periods
lets
corrosion
form in the
fuel pump and
lock it up.
THE SOLUTiON
Take off the control panel cover and remove both rheostats by removing
the two screws, the two lock washers, and the two flat washers for each.
Tighten the nut on each rheostat
shaft and put Loctite around each nut
to keep them tight.
Re-install the rheostats by revers-
ing the procedure. You will need new
lock washers, NSN 5310-00-045-3296.
The
disassembly and assembly
procedures begin on Page 2-39 in TM
3-1040-283-20&P.
“If
any
of the
hardware is
missing
or any of the bolts
are
loose,
tell
your repairman.”
“
Vibration
can also loosen
the nuts that keep the FOG OIL
FLOW knob spindles tight.”
Make sure all four nuts
have all their mounting
hardware
Tighten
nut and
then apply
Loctite
Put fuel supply
hose in oil can
…I’m a
smoke
generator
and
I gotta know…
How
Not
to Stop
Smoking!
Sitting
and
shaking
cause
most of the
problems for
the M157A2
smoke
generator.
Shaking
Vibration
can loosen the
four nuts that hold the control
panel to the mounting bracket
inside the M113 tracked vehicle
if all the mounting hardware
isn't
in place.
“So
before
you go to
the field, make sure
each
of the four mounting
bolts has two washers,
one lock washer, and a
self-locking nut.”
we’re
loose
nuts!
SPC Jesus
Ortega of the
369th Chemical Co
at McGregor
Range, new mexico,
came up with the
solution.
593. 46-47 (C)
3/1/02
5:39 PM
Page 1
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