PS Magazine - TB 43-PS-582
PS, The Preventative Maintenance Monthly
ISSUE 582
MAY 2001
M1-Series Tanks…
hen you're tooling around in your tank, you want the ride to be as smooth as
possible. That's why you need to keep an eye on the roadwheel arm bump stop
brackets.
The brackets are installed at the No. 1, 2 and 7 roadwheel arms to keep them from
moving beyond their limits. If the
brackets are damaged or missing,
the roadwheel arms move too far
and you end up with broken
shocks and torsion bars.
So eyeball the bump stop
brackets as part of your after-
operation PMCS. Look for
cracked, bent or missing brackets.
Check the shock absorbers for
leaks or a housing that's colder
than the rest. A cold housing
means the shock's not working.
PS 582
MAY 01
14
Bump stop
brackets
damaged?
PS 582
MAY 01
15
our tank's NBC system is designed to keep out all sorts of bad stuff.
But it needs
your help to keep out water.
When water—whether from cleaning or from rain—gets inside the NBC sponson
box, components corrode and wiring shorts out.
No NBC system means your tank
is NMC.
Protect the NBC system by keeping high-pressure water below track level.
Then shield the system from the elements by pulling the protective tarp over the
NBC sponson box.
If you protect the NBC system, it'll protect you.
Make sure the shock's oil level is halfway
up on the sight glass.
One or more bars may be broken if your
tank tilts to one side or the No. 1 and No. 7
roadwheels and track are off the ground.
If you can lift a roadwheel with a tanker's
bar at the No. 2 through No. 6 roadwheel
arms, chances are a torsion bar is broken.
Report these problems to your mechanic.
He'll replace the bump stop bracket behind
the No 2 roadwheel on each side of the
vehicle with NSN 5340-01-065-6143. DS has to replace bad brackets behind the
No. 1 and No. 7 roadwheels.
there!
you’re
nice an’
clean
now.
yeah.
..until
corrosion
sets in from all the water
in my
nbc sponson box
Pull tarp over to cover
NBC sponson box
Oil level should be halfway
in sight glass
582. 14/15 (R)
6/20/01
4:42 PM
Page 1
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