PS Magazine - TB 43-PS-585
PS, The Preventative Maintenance Monthly
ISSUE 585
AUGUST 2001
T
he two cushioning pads, NSN 5340-01-079-3031,
on each side of your tank’s knee switch actuator have
an important job. They keep the manual control lever
from activating the switch and opening the ammo
doors until the loader presses against it.
Trouble is, the pads are held in place with adhesive,
so they can be knocked loose or fall off on their own.
Keep a close eye on the pads. If they start to loosen,
apply new adhesive, NSN 8040-00-880-7332, to keep
‘em in place. Use dry cleaning solvent, NSN 6850-00-
285-8011, to clean the old adhesive off the actuator
bracket first. That allows the pads to adhere tightly.
Clang!
That’s the all-too-familiar sound of of the
grille door grates falling off the back of your
tank when the grate bolts vibrate loose.
And it’s a sound you don’t have to hear
anymore—
if
you get your mechanic to add
key washers, NSN 5310-00-824-5474, to the
grate bolts.
The key washers wrap around the bolt
head and the grate clamp to keep the bolt
from vibrating loose.
PS 585
AUG 01
15
Patch Problem Pads
PS 585
AUG 01
14
If any of these things happen, the filters can catch fire unless you shut down the
main NBC system immediately.
If you need clean air, activate the backup NBC system. While the backup system
doesn’t provide cooled air, it does give you filtered air from outside the tank.
I shut down
and called you
as soon as we
got a
filter
clogged
nbc warning
light.
smart
move. you
may have
prevented
an NBC
filter fire!
Adhesive won’t
hold pads for long
NBC filters can
overheat and burn
Air should get colder
in full COOLER position
Watch for these
warning lights
GREAT GRATE SOLUTION
Key washer keeps
bolt in place
Oh, no!
There goes
another
engine grille
grate!
M1-Series Tanks…
M1A1/A2 Tanks…
verheating is the main
cause of M48 NBC filter
fires on your M1A1/A2
tank. But you can prevent
that overheating by watch-
ing for these warning signs:
❏
Low or no air flow at the
NBC hose sockets or bulk
dump.
❏
Air that does not get colder when
the AIR TEMP control knob is
turned to the full COOLER position.
❏
The OVERHEAT SPONSON IN,
OVERHEAT SPONSON OUT, or FILTER
CLOGGED warning lights come on.
585. 14-15 (C)
6/28/01
2:13 PM
Page 1
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