PS Magazine - TB 43-PS-569
PS, The Preventative Maintenance Monthly
ISSUE 569
APRIL 2000
PS 569
10
APR 00
PS 569
11
APR 00
Storage boxes
hen you operators drain the coalescing filter as part of the weekly PMCS
for the compressed air system on the HET and PLS tractor trucks, you’ll see a
combination of
oil
and water run out.
No problem. The filter is there to remove oil
and water before the air goes to the dryers and
reservoirs.
Operator PMCS for the PLS already says that
a small amount of oil coming from the drain is
normal, but a steady stream is not. Report that to
your mechanics.
This same PMCS holds for the M1070, al-
though it’s not currently in the TM. It’ll be added
at the next change or revision.
M1070 and M1074/M1075 Tractors . . .
M871-Series Semitrailers . . .
Storage Box Replacement
N
eed to replace one or more of the storage boxes on your M871-series semi-
trailers?
You’ve got two choices:
•
Contact Dynaweld Inc, 406 N Highland Rd, Aurora, IL 60506, phone (708)
896-0009. Dynaweld may have storage boxes on-hand.
•
Fabricate the boxes using 12-gauge sheet steel, NSN 9515-00-237-1890. That’ll
get you a 4x8-ft sheet, from which you can make boxes using the dimensions
from the old ones. The hardware to attach the boxes is shown in Fig 33, TM 9-
2330-386-14&P.
M872-Series Semitrailers . . .
o keep side rack retaining pins on the job, and
your semitrailer off deadline, make some better pins.
You need a bolt, 9 links of chain and 2 or 3 inches
of safety wire for each pin. You also must drill a
3
/
64
-in hole in the head of the bolt for the safety wire.
Drill another hole in the threaded end for the lock pin.
Then attach the pins so they will not easily disappear.
Either safety wire or spot weld the ninth chain link to the trailer.
The right and left rear corner stakes can’t
use these pins. They won’t fit. Continue to
use the old pins and the standard corner chains.
Here’s the hardware you’ll need:
Machine bolt, NSN
Lock pin, NSN
whatcha
got
there?
that
sounds like
the
hook-up
i
need
!
Safety wire from
a 1-lb roll, NSN
It’s OK if coalescing
filter discharges small
amounts of water
and
oil
Chain (9 links) from
a 100-ft roll, NSN
i made up
some
better
side
rack retaining
pins!
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