PS Magazine - TB 43-PS-573

PS, The Preventative Maintenance Monthly

ISSUE 573

AUGUST 2000
PS Magazine - TB 43-PS-573 - Page 27 of 43
All Aircraft . . .
Service Cart Inflates Tires and More
T
he tire inflation kit, NSN 6685-00-
124-4336, in your AVUM Shop Set
No. 2 has been replaced by the high-
pressure nitrogen servicing cart, NSN
This cart offers more accurate and
safer pressure regulation because of its
dual-pressure inflation capability. Its
low-pressure side inflates tires to 175
psi. Its high-pressure side boosts strut
and accumulator bottle pressure from
300 psi to a maximum pressure of
4,000 psi.
The cart meets the tire, accumulator
and strut inflation requirements of all
Army helicopters.
ce, sand or dirt can clog the M260
or M261 rocket launcher tubes. Once
they do, your Cobra, Apache or Kiowa
rockets aren’t going anywhere.
Stop this misfiring by using environ-
mental protection covers on the rocket
launchers. NSN 1055-01-449-9642 gets
the protective cover for the M260
launcher (seven tube). NSN 1055-01-
241-1049 gets the protective cover for
the M261 launcher (19 tube).
The protective covers not only keep
ice, sand or dirt out of the launchers,
AH-1, AH-64 and OH-58D . . .
Covers not correctly torqued allow
ice, sand and dirt to get into the tubes
and also prevent the cover from break-
ing apart correctly when a rocket is
fired. Instead of the individual rocket
cover breaking apart just for the fired
rocket, the whole cover can break up—
there goes the other tubes’ protection.
When the covers come in, make
sure you install them right. Here’s how:
Make sure the arrow on the outer
surface points straight
up
.
Align the cover bolts with the
launcher’s captive nuts and bolt them
in place.
Torque the bolts to 50 to 75 lb-in.
but they also help prevent warping of
the bulkhead from the flame and heat
of a launched rocket.
Covers protect your launchers
from dirt, sand and ice/snow
Point arrow straight up
Torque bolts to 50–70 lb-in
environmental
covers keep your
rocket launchers
fully mission
capable
.
PS 573
39
AUG 00
38
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i can
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