PS Magazine - TB 43-PS-628
PS, The Preventative Maintenance Monthly
ISSUE 628
MARCH 2005
PS 628
MAR 05
9
PS 628
MAR 05
8
Combat
Vehicles…
cap off grease fittings
g
etting all the dirt, mud, and sand off your combat vehicle’s grease fittings before
lubing is important, crewmen. Lubing a dirty grease fitting just forces dirt and
sand in along with the grease.
Contaminated lube not only won’t do its job, but the sand and grit can actually
damage bearings and other components.
One way to keep dirt out of fittings is to keep ‘em covered. Protective caps,
NSN 4730-00-289-8148, do a great job of keeping grease fittings unclogged and
dirt-free. So keep plenty on hand and use ‘em when doing PMCS.
Even capped fittings should be wiped off before lubing, though. That provides
extra insurance against contaminated grease.
M88A1 Recovery Vehicle, AVLB, AVLM…
Nice and Tight Is Right
S
procket hubs work much better when they’re
attached
to your M88A1 recovery
vehicle, AVLB or armored vehicle-launched MICLIC. Keeping those hubs in place
means making sure the mounting hardware stays nice and tight.
One way to keep the hubs tight is to
replace the two-piece nut and bushing setup
with dowels, NSN 5310-01-123-6782. Since
the dowels are one-piece instead of two,
there’s less chance of their loosening.
It’s OK to use bushings on one sprocket
and two-piece hardware on the other, but
never
mix the two on the same sprocket.
The nuts will loosen and you’ll lose the
sprocket.
Switching over to the one-piece dowel eliminates another problem, too. You’ll
never have to worry about how to get a stuck bushing out of the sprocket again.
Right now,
most mechanics
remove all the hardware and let the
weight of the sprocket pull the stuck
bushings out. That’s dangerous and
hard on the sprocket.
Regardless of which type mounting
hardware you use, be on the lookout
for shiny spots or rust around the
nuts. That signals loose fasteners. If
you find any, tell your mechanic.
what a mess!
I’ll
never
be
able to get clean
lube into your
roadwheel arms!
yeah,
if
only
you’d
used grease
fitting caps!
One-piece
dowels keep
sprockets in
place
Look for shiny spots or rust around nuts
let’s hit
the road!
we’ve got a
mission!!
with my loose
sprocket hubs,
we’ll be
lucky
to reach the
gate!
628.08-09(C)
1/27/05
5:49 PM
Page 1
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