PS Magazine - TB 43-PS-594
PS, The Preventative Maintenance Monthly
ISSUE 594
MAY 2002
PS 594
MAY 02
9
The Wet Method
Instructions for using the wet method are pretty specific and you must follow
local rules. That’s why you contact the Industrial Hygiene folks
before
you do any
work on brakes or clutches.
•
Use a spray bottle, hose
nozzle or other implement
that can deliver a fine mist of
water at low pressure to
thoroughly wet the brake or
clutch parts. Then wipe the
parts clean with a cloth.
•
Handle that cloth accord-
ing to local policy for getting
rid of asbestos waste. In
some instances, local policy
may allow laundering of
these cloths. Follow the
instructions you are given.
•
Clean up any spilled water
or other material from the
work site immediately, again
using instructions as provid-
ed by your supervisor or the
hygiene folks.
•
Do not grind,
sand,
scrape or dry brush
brake
or clutch parts if you use the
wet method.
Gasket Removal Tips
To remove engine gasket
material, steam clean the
parts, then remove the gasket
material by
hand scraping
only.
You must still handle this
material as asbestos waste,
to be disposed of as directed.
For more details,
see
TACOM SOUM 00-005 and
GPM 99-06.
B
rake shoes, clutch linings and engine gaskets
may
contain asbestos.
Yes, you may have heard years ago that the Army was purging everything made
of asbestos from the system. And yes, you probably figured that by now all parts you
receive are asbestos-free.
However, despite the best effort, there is
no guarantee
that brake shoes, clutch
linings and engine gaskets do not contain some asbestos.
So you must treat all these parts as if they
do
contain asbestos. That means using
a high efficiency particulate air (HEPA) vacuum or the wet method when you work
on them—
after you have asked for specific guidance from your supervisor or
local Industrial Hygiene support office.
HEPA Vacuum Info
A HEPA vacuum is the best protection against asbestos. It safely captures
asbestos dust knocked free from the parts being removed or repaired. If you have
one, use it.
If you don’t have one, you can order one
with NSN 7910-01-292-0009. This brings
a vacuum and an enclosure big enough for
working on the brakes on vehicles smaller
than 2
1
∕
2
-ton trucks. NSN 7910-01-338-
3327 brings the vacuum and an enclosure
for vehicles 2
1
∕
2
-tons and larger.
You can order the larger enclosure sepa-
rately (the vacuum works with both) with
CAGE OC1P4, part number BCE-700.
Use RIC GSA on your DD Form 1348-6.
Instructions on the use of the HEPA
vacuum come with it.
Use HEPA vacuum cleaner
for best protection
Follow local rules when
using wet method
Dispose of used cloths in
accordance with local policy
Treat scrapings as
asbestos waste
sergeant, is it true
we’ve got asbestos
in only
some
of
our vehicles?
yep. but we
gotta clean
‘em as if
they
all
do.
All Vehicles…
Here’s
what
you need
to do…
594. 08-09 (C)
4/1/02
6:09 PM
Page 1
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