PS Magazine - JANUARY 1986
PS, The Preventative Maintenance Monthly
ISSUE 398
JANUARY 1986
Protect Uniball from Grease
When you Cobra mechs lube your bird's scissors and sleeve assembly, purg-
ed grease flls down inside the sleeve assembly onto the uniball. Grease ruins
the uniball's TeFon±lined beaRings.
So be²re yoU start PumPing lUbe, li³ UP on the swashPlate lower boot, Item
46 in ´ig 5µ51 o¶ TM 55µ1520·236¸23±1. ¹Ut some PaPer towels under the boot
to catch Purged grease.
A³er yoU're through lUbing, use a clean cloth to remove any grease that gets
Past the towels onto the Uniball.
CH-47C .
.±
INspect foR ChafiN
g
Dama
g
e
Chaºng can damage yoUr T55»L»¼ 1D engiNe's anti±icing air gallery UPPer covers
and caUse big Problems. Those covers are so¶t and won't take mUch abuse½
When yoU PUll yoUr ¹M daily, eyeball the UPPer cover. Make sUre the ¹3
and HydraUlic starter lines are not toUcHing tHe cover.
I¶ they toUcH, move them away ¾om tHe cover. Look ²r cha¿ing. À¶ yoU Ánd
·
aNy, Use dial iNdicating gage, ÂÃÂ 5210ÄÅÆ076Ç1517, to measUre tHe damage.
I¶ it exceeds 0.0È0 inch, rePlace the cover with ÂS 2840Ä00±É5Ê6688.
ANtichafi±
g
Ta²e ChaN
g
E
Âo cHemical activator is reqUired ²r tHe New anticHa¶iNg taPe, ÂÃÂ 7510±
01¸009Ä8023, Used oN CËÊ47 series rivet Heads and seams. Ìara 2Ç586 o¿ TM
55±1520±227»23»1 is being revised to delete reÍrence to Use o¿ tHe activator.
The old ÂS ²r anticha¶Îng taPe has bEen deleted ¾om tHe AMD´.
CRash Kit Tape ³S³
À¿ yoU NeeÏ tO reÐÑÒce tÓe Ô0±ÕÖNUte recOrÏi×g cÒsseØØe i× tHe crÒsÓ iNVestigaÙ
tioN tOol kÖt, Úse ÂÃÛ ÜÝÞ0±ÅÄß7àÄ0áÔÈâ ãHe ×ÚmBer äiÑÑ Be ÒÏÏed to Ãå
Þ180Ä97ÄCæÄçèè äHe× ités ÚÐÏÒteÏ.
42
JAN 86
êven i¶ you don't have a maintenance
manual ²r your tow bars, they still need
some oPerator maintenance.
To get more mileage oUt o¶ yoUr tow
bars, take these Precautions:
±'
KeeP ¹ëì oí the solid rîbber
wheels.
²·
Steer cïear o¶ rough surðces that
can tear UP the wheels.
Don't tear up
the wheels
³´
Store the tow bar with the cross-
bar secured.
µi
KeeP yoUr tow bars Painted and
¾ee ¾om corrosion.
JAN 86
43
:
µi
When you move the tow bar,
make sure the crossbar is locked in Place
to both legs and both wheels are Ármly
on the groUnñò
-±²³
crossbar lo²ked
in pLa²e
Âew wheels won't
f
an olñ
ó
housing
with its nonÇswiveling wheel assembly.
So the way to go when you need a wheel
rePlacement is with a new housing,
ÂSÂ 1730±01»087±4231, which includes
a new swivel wheel. It sliPs right into
the tUbe assembly (Items 36 and 39 in
´ig 1 o¶ TM 55±1730Ê225»23¹).
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