PS Magazine - TB 43-PS-668
PS, The Preventative Maintenance Monthly
ISSUE 668
JULY 2008
6
PS 668
JULY 08
7
PS 668
Travel Lock Locking Pins
The travel lock locking pins, NSN
5315-01-382-5953, should be put in
the locked position whenever the mine
clearing blade is not in use. That keeps
the
blade
from
being
accidentally
dropped while the tank is moving.
Before
starting
mine
clearing
operations, move both pins to the
stowed position so the blade can be
lowered.
Don’t Forget the Tank
Now that you’ve got the mine clearing blade checked out, don’t forget the tank
it’s attached to.
The blade’s weight puts a lot of extra stress on your tank’s suspension system, so
check the shock absorber housings for leaks each time you stop. If the fluid level is
low, add lubricating oil, NSN 9150-01-439-0756, until it reaches the halfway point
in the sight glass.
Never park
your tank with
the mine blade
in the travel
position for
an extended
period. Lower
the mine blade
to the ground.
If the ground
is soft or
muddy when
in the Feld, use
dunnage to keep
the blades from
getting stuck.
Power Cable
Make sure the power cable is secured to the fender torsion bar. That keeps the
cable from getting pinched when the driver’s hatch is opened.
Lubing
There are only six lube points on
each side of the mine clearing blade,
but some of them still get missed.
There are four lube points on each of
the travel lock assemblies. The rest are
at the base of the lifting straps.
Give each of these lube points a good
shot of general purpose aircraft grease
after every operation. NSN 9150-00-
145-0268 brings a 6.5-lb can of the
grease.
Depth Adjustment
When you’re training with the mine clearing blade, keep the adjusting plate set at
its shallowest depth—eight inches. That prevents damage to your tank’s engine and
the blade’s teeth.
Put pins in locked position
when blade is not in use
Move pins to stowed
position for plowing
Lube travel lock assembly…
…and at base of lifting belt
Secure power cable to fender torsion bar
Oil level should be in middle of shock housing sight glass
668.06-07.indd
1-2
6/4/08
5:50:50 PM
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