PS Magazine - TB 43-PS-583

PS, The Preventative Maintenance Monthly

ISSUE 583

JUNE 2001
PS Magazine - TB 43-PS-583 - Page 21 of 32
rew chiefs, you’ve probably noticed that the cover for your M130 general purpose
dispenser has a cover-up problem, on CH-47 aircraft. The cover, NSN 1560-01-271-
6463 doesn’t protect the dispenser because it’s mounted and used exclusively in the
flare mode.
That’s because the dispenser has two holes not covered by the cover. So the holes
funnel rain, melting snow, sand, and debris into the dispenser. That soon corrodes
the firing contacts and makes the dispenser NMC.
So get a nylon cover that protects the dispenser in all weather and in both modes
Over time, the rotor shaft makes grooves on the transmission’s slider bushings. As
the bushings grind down, the shaft rides in those grooves. That limits the movement
of shock mounts and the forward adapter.
Finally, the drive shaft freezes up and the
bird goes in for major transmission repairs.
So get your -23 maintenance manual out
and do those detailed inspections every day
like it says in task 6-10. That’ll keep your
bird’s drive shaft from giving
you
the shaft.
PS 583
JUN 01
39
CH-47D…
CH-47D…
echanics, slingload operations put a heavy demand on Chinook drive shafts.
So,
don’t
ignore the daily tunnel inspections spelled out in sequence 13.1 of TM
1-1520-240-PMD. If you let those inspections slip by, you could end up with a shaft
that doesn’t turn and a frozen transmission.
Never let bushings wear this far
Check wear
patterns on all six
slider bushings
CH-47 series…
Hold On to FM 1-202
A
viators, on page 37 of PS 575 we told you that FM 1-202,
Environmental
Flight
, was being replaced by FM 1-201,
Fundamentals of Flight
. Well, it is, but
the publication of the new pub has been delayed. Hold on to your old pubs until
FM 1-201 hits the field.
This cover
will
keep
your general
purpose
dispenser
dry!
583. 38-39 (C)
4/28/01
7:29 PM
Page 1
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