PS Magazine - TB 43-PS-594
PS, The Preventative Maintenance Monthly
ISSUE 594
MAY 2002
PS 594
MAY 02
19
Armored Vehicle Launched MICLIC…
M88A1/A2 Recovery Vehicles…
S
etting up your M88A1/A2 recovery vehicle to lift a heavy load—more than 6
tons—is a lot of trouble. That “trouble,” though, can mean the difference between
an easy lift and equipment damage.
Loads over 6 tons can play havoc with torsion bars, shock absorbers and road
arms.
That’s why you should always
use lockout blocks when lifting
heavy loads. It’s also a good idea
when you’re not sure just how
heavy the load is. Lockout blocks
take the extra stress off the front
suspension system. You’ll find the
procedures for installing and using
lockout blocks on Page 2-144 of
TM 9-2350-256-10 and Page 2-
156 of TM 9- 2350-292-10.
Don’t think you’re in the clear, though, even if the load’s less than 6 tons.
Some operators leave the engine deck on the ground between the tank and the
recovery vehicle while pulling a powerpack. The M88A1 straddles the deck as it
gets ready to lift the pack.
As the pack goes up, the weight compresses the suspension enough that the hull
bottoms out on the deck. The pressure can warp the deck.
Play it safe on light loads. Either use the lockout blocks or keep anything that
might be damaged out of the way.
“Never be
tempted
to
use a damaged U-bolt,
either.”
“It
won’t
hold.”
Get new self-
locking nuts with
NSN 5310-00-
067-6356.
C’mon!
what’s the
worst
that could
happen?
bad
idea!
Tighten
those nuts to
90-110 lb-ft.
“
Easy
does it when tightening down the
nuts on the U-bolts that secure the mine
clearing line charge (MICLIC) to the
armored vehicle launched MICLIC (AVLM).“
“Any looser and
the nuts might
come off
.”
“Any tighter and
the
U-bolt
itself
is
damaged
.”
“If you’re
too
heavy-handed,
the U- bolt threads can
strip.
Even if the threads hold up, the
U-bolt itself can bend.”
“Either way, you’re going to have a real hard time getting the U-bolt off the
next time you need to remove the MICLIC.”
I hope
they’re
using
Lockout
blocks!
Use lockout blocks to prevent
suspension damage
You
Bet!
Too
tight
is
not
right!
90
lb-ft
110
lb-ft
Have a new one
made following
the instructions
on Page G-17 of TM
9-1375-215-13&P.
594. 18-19 (C)
3/30/02
12:26 PM
Page 1
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