Air Force the Official Service Journal - Air Force Historical Studies ...

SS
I. You on the left, Buddy, appear rather
concerned. Could it be that I'OU knoll' it's
poor practice to set that can 'of oil on the
brake block' If it gets oilv, the block will
have to be ch'mged. Instalhng the drum on
an oil-soaked block means that unsat isfactorv
brake operation wit h chattering and seizing
will result. The brake block will slip until
it gets warm, then it becomes glmlml'.
2. Next on this wheel examination, the
holts on the brake shoe axxcmblv arc in
backwards. If the cotter keys come out
(and. incidcntallv, we don't sec '111\'), the
nuts become loose. LJ]] into the wheel and
holts LJlI from the brake frame. .\ nut
rolling around in the wheel mal' wedge a
brake. These bolts require checking at 25,
5(1 and ] (10 hour iuspcctions. Bonnee the
boners shown here 1)\, following TO 0 I.
20EI;.2 and i\:--.r O)2,B.9.
3. It's a good idea to cover the threads
on the axle when installing the 1\ heel; the
bearing race mal' damage the axle threads.
F.\SC has devised a metal cap. wlucl: gi,'es
neee5'ary protection to the threads. Usc of
tape or other approved methods will suffice.
4. Grease on the floor is a gi\'e.all'al' on
bad maintenance. It will deteriorate the
lubber when contacting the tire; in addi
tiou, it is a slippcrv haz.rrc] for men working.
Check TOs 0+ 5.J 0 and 0+ I 02.
,. Bearings and rings on the floor arc
liable to pick up dirt. Lay parts on a clean
surface, preferably a parts truck. TO 29.1.)
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will tell yOU all about it.
6. Th~ brake drum is not properly
cleaned. If that is paint still on the drnmand
it looks like p,uut-it must be remO\'CCI
before the wheel is iuxtallcd. Otherwise,
when the wheel rotates. the paint will gUlll,
and the brakes will lock when pressure is
applied, possibl!' causing the airplane to
swerve d,mgerousk Check TO 03-25B-9.
7. The man behind the tire is really
gi,'iug it goldbricking support. II is position
is insecure .iucl that goes for the tire, too.
The wlux-l should be placed against a solid
object; the man is exposing himself to rnpturc
should the wheel overbalance. When
available, cradles should be usee] to bring the
wheel to the axle for installation.
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