PS Magazine - TB 43-PS-728

PS, The Preventative Maintenance Monthly

ISSUE 728

JULY 2013
PS Magazine - TB 43-PS-728 - Page 9 of 33
14
PS 728
JUL 13
15
PS 728
JUL 13
O
T
he new M1070A1 HETs have an upgrade that you might not know about, drivers.
The 5th wheel now comes equipped with new plates that take
no lubrication.
You heard it right!
No lube!
In fact, if you lube the non-
lubrication plates, they’ll collect
sand, dirt and grit that will severely
damage the plates.
You should continue putting a
coat of GAA on the top surface
of the 5th wheel’s ramps, just like
before. Before hookup, be sure to
remove any grease on the M1000
semitrailer that would come into
contact with the 5th wheel’s non-
lubrication plates.
Replacement plates are available as part of a kit, NSN 5340-01-603-7792. Both
the left and right plate and 18 mounting screws come with the kit.
O
perators, if you’re going to use your M917A1 dump truck in a paving operation
with the 780T bituminous paving machine, your mechanic Frst needs to reposition the
vehicle’s left and right rear-axle brake chambers.
The chambers are located so low on the truck axle that the rollers from the paving
machine hit them during paving. The resulting damage can leave you brakeless.
This problem is nothing new. Just look around the motor pool and you’ll probably
see plenty of banged-up brake chambers.
To move the chambers, follow the info on Pages 3-4 through 3-10 of TB 43-0001-
62-5 (Apr 00).
Need a copy? Ask your TACOM logistics assistance representative for help. Or you
can ask ol’ Half-Mast to send you a copy of the TB pages by e-mail:
half.mast@us.army.mil
Beware of Brake
Chamber Bang Up!
M1070A1 HET Tractor…
No More Lube for
5th Wheel Plates
M917A1 Dump Truck…
Paving
machine
rollers hit
underside
of brake
chambers
Raising
brake
chambers
gets them
out of
danger
zone
New plates take no lube
Hey, I don’t
feel so
good! I think
my brakes
are
bad!
Yep!
Your rear axle
brake chambers got
damaged
during that
paving operation!
We’re gonna
need a tow
back to the
motor pool!
Beware of Brake
Chamber Bang Up!
You can
holster that
grease gun,
Soldier!
The new 5
th
wheel plates
on that HET
don’t
need
any lube!
Great!
One less
thing to
worry
about!
728 14-15.indd
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5/20/13
5:41 PM
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