PS Magazine - TB 43-PS-709

PS, The Preventative Maintenance Monthly

ISSUE 709

DECEMBER 2011
PS Magazine - TB 43-PS-709 - Page 8 of 33
12
PS 709
13
PS 709
DEC 11
± When± doing± weekly± PMCS± on± your± HEMTT,± don’t±
forget±to±check±that±the±safety±pins±are±in±place±to±secure±
the± ladder± properly.± Repair± or± replace± any± damaged±
components± you± find.± If± necessary,± replace± the± whole±
ladder.
± A±ladder±can±get±damaged±when±it’s±accidentally±left±
in±the±down±position.±Remember±to±stow±your±HEMTT’s±
ladder±when±it’s±not±in±use±or±before±you±move±the±truck.±
Follow± the± guidance± in± your± specific± HEMTT± model’s±
operator’s±manual.
± Remember,±taking±the±time±to±fix±a±
broken±ladder±now±sure±beats±trying±to±
fix±a±busted±finger±down±the±road.
S
oldiers,±some±of±you±climb±up±and±down±M978,±M978A,±
and±M978A4±HEMTT±tanker±ladders±many±times±a±year±to±
tackle±tasks±like±fueling±vehicles±or±aircraft.
± Most±of±the±time,±you±probably±
don’t± give± a± second± look± or±
thought± to± those± vehicle± access±
ladders.± They’re± just± a± means±
to± get± from± Point± A± to± Point± B.±
So± while± the± ladders± are± there,±
you± may± not± really± “see”± them±
anymore.
± Well,± turns± out± that± ladders±
need± PMCS,± too.± Injuries± have±
been±caused±by±damaged±HEMTT±
ladders—some±
serious±
enough±
that±workers±have±lost±fingers.
± Even± on± a± ladder± that± is± not±
damaged,± the± hinge± between±
the±bottom±and±top±halves±of±the±
ladder± is± a± pinch± point.± Follow±
the±warnings±in±the±TM±and±keep±
hands±clear±of±the±ladder±hinge.
Dear Half-Mast,
Our maintenance shop says they cannot get OE/HDO 40W oil and
wants to know if they can use OE/HDO 15/40W oil in the HEMTT’s
transfer.
Card 3 of 35 in LO 9-2320-279-12 only specifies OE/
HDO 40W oil.
Is OE/HDO 15/40W oil an acceptable substitute?
Mr. G.P.
Dear Mr. G.P.,
This is an issue that has come up in the past. The quick answer is “yes,”
but there are some stipulations.
The NSN shown in the HEMTT IETM for OE/HDO 40W oil has been
discontinued. However, you can get re-reFned OE/HDO 40W oil to use
instead. NSN 9150-01-433-7970 brings a 55-gal drum.
If OE/HDO 402 isn’t available, you can substitute
OE/HDO 15W40…
but only if your vehicle’s warranty
has expired.
Item
NSN
Wire rope
Clevis pin
Ladder clip
HEMTTs…
substitute oil
in the
transfer
Nip
Ladder
Bite
in Bud
Here’s a goOd
question that
You mAy have
seEn before…
Ladder±hinge±is±a±pinch±
point.±Keep±hands±clear
whoa, nelly!
what’s with
the attitude?
didn’t you get
your morning
grinds?
the only
grinding
I’m gonna
do is on
your
hand
if you
don’t fix
my broken
hinge
points!
Use±these±
NSNs±to±
order±new±
retention±
pin±
hardware±
for±ladders
HEMTTs…
709 12-13.indd
1-2
11/7/11
2:21 PM
Click here for a copy of this article to save or email.
Click here for a copy of this article to save or email.
Back to Top
Back to Top