PS Magazine - TB 43-PS-414
PS, The Preventative Maintenance Monthly
ISSUE 414
MAY 1987
Ever wonder why your B-4A main±
tenance platfrms are so oRery when
you're trying to move 'em Fom Point A
to Point B?
Those critters are just naturally stub±
boR, ²ut they get downright muleheaded
i³ you don't keep the wheel bearings
lubed.
TM 55´1730µ215´13&P says to lube
'em with GAA every 1¶ hours o³ use,
but KeepIg an hourly use chart on main·
tenance platfrms is tough.
So schedule lubes on your DD ¸orm
314 every two or thre¹ months under
normal conditions, more oºen under
abnormal conditions, liKe when you're
in the »eld.
The new wheels, NSN 5340´¶µ205µ
5608 (with braKe) and NSN 5340µ¶µ
724µ2¼7 (without br½Ke), are lots easier
to lube 'cause they've got grease »ttings.
Just slap a grease gun on 'em and pump
'tiL you see old grease com¾ng oUt the
sides. ¿³ the old grease looKs discolored,
keep pUmping Until you see new grease
comÀÁg out the sides. Be sure yoU trash
all the purged grease.
Wle you're at it, smear GAA on the
plat³orm's ladder guides conÁecting the
upper and lower sections o³ the ladder,
liKe it says in Para 3µ13 o³ the TM.
Lube ladder guides
42
MAY 87
KEEP AWA'! I CAN
TE±± FQOM HEQE ²OU³RE
NOt THE RIGHT S´A±ANt
FOQ ME!
Some ÂTV siLicone comÃo
:
unÄ
i
s
;±
are
lF
±
Å
Å
-
²
±
²I
E
taboo fr aircraº use. The note in Para
3´95 o³ TM 55-15¶´2Æ´25Ç1 explains
the rule o³ thumb when using ÂTV:
¿³ it smells liKe vinegar (acetic acid),
don't use it. ¿t causes corrosion.
ÂTV 730 has a strong vinegar odor.
So never use it on aircraº instead o³
what your aircraº's maintenance manual
calls fr.
The onÈy ÂTV sealant approved fr
aircraº use confrms to speci»cation
M¿É´A´46146Ê
Some adhesives and sealants have
seveËl applicaÌoÍs, but unless your TM's
say you can substitute one adhesive/
Îealant fr another adhesive/ sealant,
don't do it. SticK to the one called fr
in yoUr TM's.
mµk & p-D¶680
.±
-²
³´
Handle With
Bird mechs,anytiÏe you're worKing
with a solvent
l
MEÐ ÑÒÓÔHYlethÕleÖ
tone) or P
µ
D´680
,
·¸¹y
it
º».
Solvents are toX¾C and ×amma²le!
•
Always wØr Ùlvent´Ú¾sÛnt clothÜng
½nÝ gloves plus a
f
shÀeld or goggles.
•
¿³ yoU get solvent on your sKÀn, wash
the area with soap and water as soon as
•
¿³ you haÞe to worK w¾th solvent
¾ß close quarters or ¾ß a poorly ventilated
area, use a respirator, NSN 4240µ01´
015´5194, fr »ltering organic vapors.
àTA 50µ970 is your authoriá fr order±
ing the respirator.
TB MED 502 has the word on resp¾Ö
rators and DA Pam 385µ3 has the inf
on protective clothing.
poss¾²le.
mAY 87
43
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