PS Magazine - TB 43-PS-555
PS, The Preventative Maintenance Monthly
ISSUE 555
FEBRUARY 1999
drains all the condensation in the tank
that otherwise causes corrosion and
poor smoking.
Press both PURGE buttons for five
seconds. That gets rid of the hot gases
that have built up inside the generators
during smoking.
If the gases
remain in the
smoke chamber,
they can ignite
and send fire
out through the
baffles.
If your M157’s
going to sit for
more than a
week, hook up the fuel pump to a can
filled with SAE 10-weight oil. Let the
fuel pump run five minutes. Do the
same with the fog oil pump. That coats
the insides of both pumps and keeps
them from corroding and locking up.
ust a few minutes of PM before
and after a mission can make smoking
easier for your M157 smoke generator.
Before
Unscrew both fog oil strainers from
the fog oil lines and check them for
gunk. If they’re
clogged, the
generators will
strain for
enough fog
oil to smoke.
Clean the
strainers with
dry cleaning
solvent and
a rag.
Check the O-rings in the quick-
disconnects for the air compressor
hoses. If the O-rings are cracked, the
hoses will have a bad seal and the gen-
erators will have trouble getting enough
air, which causes poor starting.
Check air hoses’ O-rings
Run 10W oil through if the M157’s
going to sit more than a week
Purge smoke chambers
M157-Series Smoke Generator . . .
After
Push the button underneath the air
tank and hold it for 30 seconds. That
Drain air tank
better with no O-ring than with a
bad one. They seal
best
with a good
O-ring, of course. Get a new one as
soon as possible.
Clean off the breather vent to the
fog oil tank with a rag. If the vent is
stopped up, the generators won’t get
enough fog oil.
If your mechanic doesn’t have re-
placement O-rings, NSN 5330-00-702-
7217, remove the bad O-rings and
smoke without them. The hoses seal
you're
smoking
like a
furnace
, pal.
what's your
secret
?
it's
no
secret
that
good
pm
gets
good
performance
.
Clean
strainers
Wipe off
breather
vent
PS 555
44
45
FEB 99
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