PS Magazine - TB 43-PS-572

PS, The Preventative Maintenance Monthly

ISSUE 572

JULY 2000

PS Magazine - TB 43-PS-572 - Page 22 of 35
Dear Editor,
We have a few suggestions for
Avenger crews and repairmen to
make their lives—and firing—
much easier:
Pay attention to the
identification friend or foe (IFF).
Check the IFF interconnect box
and cables before operations like
it says in Item 27 of PMCS Table
2-1 in TM 9-1425-433-10 and test
the IFF like it says in Para 2-36 of
the -10. If the IFF doesn’t work, it
deadlines the whole missile
system.
Avenger Missile System . . .
s
e
a
l
o
f
CW2 Corey Jeffries
CW2 John Saam
3/4th ADA
Ft Bragg, NC
Be careful working around the
Avenger when the ECU/PPU is
running. Its hot exhaust shoots
out to the side at eye level.
remove the Avenger’s makeup air
filter. There’s little clearance for
the ECU/PPU. If it’s not lifted just
right, it breaks off the filter’s fan
blower.
found the matching unit works
loose and moves back and forth
during travel, which weakens the
antenna’s connection and reduces
the communication range. Just
feel the matching unit for
looseness. If necessary, tighten
the three bolts holding it on.
After you power up the forward
looking infrared receiver (FLIR),
wait for its READY light to come
on before switching from STBY to
ON like it says in Step 3 of Para 2-
36 of the -10. The FLIR must cool
off before you use it, which usually
takes 5–7 minutes. If you don’t
wait for the FLIR to cool, you’ll get
built-in-test (BIT) faults and have
to spend time troubleshooting.
Service the new environmental
control unit/primary power unit
(ECU/PPU) every 250 hours of
operation. Change its oil and
filters and make sure its W103
cable connector is torqued to 95–
105 lb-in. The easiest way to track
the 250 hours of ECU/PPU usage
is by making it part of ULLS for
your unit. Just add each Avenger
to the equipment data file
(AWCMX 001). Maintenance
procedures for the ECU/PPU were
added to TM 9-1440-433-24-1&2
in Change 7.
Before your support uses a
crane to remove the ECU/PPU,
Include the matching unit for
the antenna mast guide (AMG)
in before-operation PMCS. We’ve
Watch out for ECU/PPU exhaust
Matching unit loose? Tighten bolts
Remove air filter before removing ECU/PPU
PS 572
37
JUL 00
PS 572
36
JUL 00
listen up!
these guys have
good ideas
!
✺
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