PS Magazine - TB 43-PS-521
PS, The Preventative Maintenance Monthly
ISSUE 521
APRIL 1996
AlL AirRaf .
.±
1±
u±²³ ´
ome jObs need a backup.
In AircRaft m±inTEnance, y²UR Backup ³S ± SEcond w´enchµ You need iT F¶r the
³nsT±llaTi·n and RemOval o¸ ²il and hydRauLic LineS and oThe¹ ¸³Ttingsº
H»Re arC Thr¼» sPEci½c ¼xamplES:
•
The hydraulic hoses that attAch to the cyclIc contrOl IRReversIble valve on
the Huey fight control system.
When rem·ving ·r in¾TAlling Them, if yOu d·n'T uS¿ TwO wrenchEs TO TighTen ²r
lO²sÀn each h·seÁ y·uÂll kinkà twiÄT ·R bReak The hOsE ³nTeÅÆllyµ
ÇO wrenches wÈll heLp yOu sEAT The hydÉAulic ÊËTTings T² avO³d leAkÄ when The
hOses Ìre under pr»ssuReÍ
•
±he connectoR asSembly on the va²Iable Inlet guIde vane assembly on the
T53 enGne on Hueys and CobRas³
A
brOken c²nnEctOr R²d c²Uld kEEp tÎe v±nEs Ïвm ²Peningº
A
bR·ken ROd iÑ
OfTen The ResulT when ·nly One wRench ³s used T· ³nSTall ²R adjusT the cOnnecTOR
aľÀmBlyº When y·u lOOsen ·É TighTen The jam nuTà use anOThER wRench tO keep a
backuP ÒÓrce ²n The sEÔf-aligning ÕaringÖ ×ThEØi¾eÁ The fORce yOu PuT ·n The
jam nuT w³\1 twisT and weAken The cOnnEcTOr r·D Í
ÙÚÛÜÝÞß
If iT doeSnàt break RighT awayÃ
•
The Fuel LInE and ´ttIngs
on a Blµck Hawk engine.
WiThOuT a backup wrEncÎá ÊâTTings
w³
II
sTRipã äinEs w³ål rOTatE and æeaks
will ÎaPPenÍ
PS 521
³t wiçä evenTuallyÁ mayBe
dèɳng Êé³ghTê
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