PS Magazine - TB 43-PS-560

PS, The Preventative Maintenance Monthly

ISSUE 560

JULY 1999
PS Magazine - TB 43-PS-560 - Page 5 of 34
PS 560
8
JUL 99
alking a lineup of M101- and
M116-series
3
/
4
-ton trailers carrying
generators often reveals that some of
them don’t have a rear leg to stand on.
Look closely and you’ll see that
many of the legs were ripped off be-
cause drivers forgot to stow them be-
fore moving the trailer.
Replacing the leg and hardware with
kit, NSN 2590-01-179-9080, costs
about $100. Then there’s the body work
to put everything back the way it was.
Just the adjustable leg alone, NSN
2590-00-439-6288, costs about $100.
So, stow the leg before you move
out and save the money.
urpleheart is the word—and
wood—to keep in mind when you
replace the decking on the 40-ton
lowbed semitrailer.
Purpleheart is a tropical wood that’s
stronger and more durable than
the boards you use now. It resists
both rotting and ultraviolet rays, and
repels water. It requires little or no
maintenance.
Purpleheart is a harder wood, so a
carbide blade is needed to cut it. Same
goes for drilling holes. Drill bits will
need carbide tips. Order purpleheart
with NSN 5510-01-454-8568. The unit
of issue is board feet (BF). Each board
that you get will measure 16 feet
4 inches long x 9
7
/
8
inches wide x 1
7
/
8
inches thick. So, each board equals
27.21 BF.
A
s more and more tactical vehicles get heavier towing shackles to meet air
transport regulations, more and more trailer safety chain hooks have to be
replaced. The original hooks are just too small for the heavier shackles.
Do not try to work around the problem because that defeats the purpose of the
safety chains.
Replace the old chain hooks with hook, NSN 4030-01-438-1803. It works on
the larger shackles and is
easy to install.
Cut the trailer chain’s last
link or remove its removable
link. Discard the old hook.
Install the new one with its
pin and cotter pin.
Lunette-type Trailers . . .
Large Shackles vs Small Hooks
M101/M116-Series Trailers . . .
M870/M870A1 Semitrailers . . .
The minimum order under this NSN
is 250 BF. You need 325 BF to com-
pletely re-deck one trailer. Here are the
boards you need to do the job:
Number
Width
Length
of boards
(inches)
47
3
/
8
7 feet
1
/
2
inch
2
5
7 feet
1
/
2
inch
47
3
/
8
16 feet
3
/
8
inch
25
1
/
2
16 feet
3
/
8
inch
25
3
/
4
13 feet 7 inches
24
15
/
16
13 feet 7 inches
44
15
/
16
16 feet
3
/
8
inch
24
15
/
16
2 feet 9 inches
...need new slip hooks
Heavier towing shackles.
..
don't
forget about
me!
use
purpleheart
wood
to replace the planking
on your semitrailer.
PS 560
8
JUL 99
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