PS Magazine - TB 43-PS-706
PS, The Preventative Maintenance Monthly
ISSUE 706
SEPTEMBER 2011
12
PS 706
SEP 11
Changes for Operators
operators, get tm 9-2320-38
7
-10 w/change 6 and make these pmcs
changes:
Prevent failure of your up-armored HMMWV’s A/C compressor, compressor
clutch and pulley assembly by installing an upgraded thermostat switch, NSN
6685-01-539-
7
05
7
. And make sure you practice the following
new
procedures:
hand tighten if loose, report to maintenance personnel if missing.
(
you
don’t need an entry in the not fully mission capable if column.)
Check the A/C service
port caps for presence and
security
.
Service
Port
Caps
Before
7. 1
***CAUTION***
Prior to engagement and
during operation of the A/C,
ensure the voltmeter needle
is in the green zone. Failure to
comply may result in damage
to equipment.
***CAUTION***
For A/C system operation in
ambient temperatures of 75
degrees Fahrenheit or less,
ensure that all instrument
panel vents are fully open
and the fan switch is on high.
Failure to comply may result in
damage to equipment.
***CAUTION***
For A/C system
operation in ambient
temperatures of 75
degrees Fahrenheit or
less, ensure that all
instrument panel vents
are fully open and the
fan switch is on high.
Failure to comply may
result in damage to
equipment.
Up-armored
HMMWVs…
Preventing
A/C Compressor
Failure
on a separate sheet of
paper, write the following two
cautions and insert it between
pages 2-40 and 2-41…
write in the
following
caution
in the
blank area
of page
2-101…
nobody
wants
parts
to fail
on their
vehicles.
But that’s happened
several
times when the
A/C compressors failed
on M1151, M1151A1, M1152,
M1152A1, M1165, M1165A1, and
M116
7
up-armored HMMWVs.
The
good
news is
that some changes
to operating and
maintaining the A/C
system can
stop
A/C failure.
add the
following to
the bottom
of table 2-2,
pmcs, on page
2-32.2:
1
2
3
706 12-13.indd
1-2
8/1/11
10:43 AM
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