PS Magazine - TB 43-PS-727
PS, The Preventative Maintenance Monthly
ISSUE 727
JUNE 2013
9
PS 727
JUN 13
C
rewmen, reaching for a water hose might seem like a good idea when it’s time to
clean the V-pack air Flters on your tanks. Nope!
Cleaning the V-pack Flters with water instead of following the correct Fve-step
process will lead to serious engine damage.
Here’s the right way to clean ‘em.
..
Step 1:
Check to see if your
tank is equipped with the pulse
jet system (PJS). Tanks with PJS
will have a control unit next to
the hydraulic reservoir inside the
center hull compartment.
V-packs
on
PJS-equipped
tanks are self-cleaning, but you
can
clean them under emergency
situations. ±ollow the procedures
in your -10-2 TMs.
Step 2:
Use a black marker or grease pencil to label the Flters L, C and R (left,
center and right) before removing non-PJC V-packs. That way, after the V-packs are
clean, you can put them back into the correct slots.
Dirt can get into the engine
if you don’t put the V-packs
back in the proper sequence.
That’s because they won’t
line up with the original
compression points on the air
plenum box seal, which will
cause gaps in the seal.
Don’t stand an element on
the open end.
Step
3:
After
removing
the
V-packs, get your mechanic to clean
the Flters with the V-pack cleaning
wand, NSN 4730-01-086-1459, at
less than 90 psi.
If a mechanic or a cleaning wand
isn’t available, clean the V-packs
yourself by shaking ’em gently.
Hand-brush dirt and dust from the
elements. Never hit the V-packs
with anything harder than the heel of
your palm. Dented V-packs won’t
seal out dirt.
Notify maintenance as soon as
possible that you had to clean the
packs and why. They’ll give ’em a
proper cleaning and replace them if
they exceed 43 pounds.
Step 4:
Wipe any loose dirt or
sand out of the bottom of the air
plenum box. If you let enough stuff
collect there, the V-packs won’t seat
properly.
Step
5:
Reinstall the V-packs,
remembering to put them back in the
same order that you removed them.
M1-Series Tank…
V-Packs:
Do Not Mix With Water
Look for PJS control unit next to hydraulic reservoir
Mechanic can
clean V-packs with
cleaning wand
Shake
V-pack
gently
Use a grease pencil or
marker to mark V-packs
What’s up with
the
umbrellas,
fellas?
We need
cleAniNg…
…but
not
with
water!
Yeah!
Water can
damage
us!!
727 08-09.indd
1-2
4/22/13
5:56 PM
Click here for a copy of this article to save or email.
Back to TopBack to Top
