Turbocharger Removal; Turbocharger Installation - Piper PA-24 Comanche Service Manual

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PIPER COMANCHE SERVICE MANUAL
7C-23. R.emoval OfTurbodwpr.
a. Remove the bottom cowlinl.
b.
Disconnect air duetS at compressor iDlet aDd outlet. When mnoviaJ the riPt
aubocharJer
Wlit
dUeOMect Wet duet at the air plenum aDd remove plaum from turboc:barJer by 100seninJ clamp at
comprasor iDlct and
removinJ
bolt anacbial it to Nrboc:barJer.
c. DiscoMeet wate pte conaol cable and mnove cable cWnp from a&rboclwpt exlwaK stack.
do Disconnect turbochupr cxhaua stack brace.
e. Remove V band damps at turbiDe inlet
aad
outlet.
f. Pull exhaust stack uacmbly
lit arid
down.
,. Disconnect oil inlet aDd outlet lina
from
turbocharpr.
h.
Remove bolt attaehiq inboarcl mOWlt to narbocharpr moWltiq lUI.
i,
Remove
Ilua.
wubcn &Del bolt
utaehiDt
tOP
aubocharJer
mount
to
eftlinc·
7C-Z4.
lDRa1Iadon
Of Turboc:Urpr.
a.
Asc:ettaiJl that inboard turbocharJer mou.at is installed on aft fuel injector
mounana studs and
cnpne sump. and safctied.
b. Install oil line fittinp in turbine
CC1UCf
housiq.
c.
[nsaJ.I
tOp mount on turbochaJJcr and secure wim cap
screws
md safccy wire.
d.
[nsWl bl&nkcton narbinc housinl and secure with safety wire.
c. 1nsu.l1
NtbochalJer
aucmbly on eftlinc. iNcn wubcn between top mount and cnpne sump
flatlF and
SCCUR
mount to f1anp
\Vim
bolt wuhcn and
IlUU.
f.
Loosen V band clamp attaehinJ the ewo halves of the turbine topdler. [f necessary roeate turbine
housing to alipl the comprasor diKhU'le outlCl: wim the compressor
discJwtc
usembly
(air
box).
g. Torque the turbocbU'JCf center section V bud clUllp to
)0-40
inch pounds.
h. Secure turbocbaqcr to the inboard mountiDi brace with bolt wutters and nut. Position washm as
required on either side of the turbochU'lCf mounoOllul to prevCftt pre-load on the inboard brace when
mountina bolt is torqued.
i.
COMeet inict and oudet oilliDa to turbocharpr.
j. Position inlet and oudet exhaust stadcs with pskets on exhaust turbine housin, and secure with V
band clamps. Torque clamps to 55-75 inch pounds.
NOTE
For all ..
v..
band couplqs on the exhaust SYStem. be
Nrc
putS arc
concmaic before tilhtenin, couplinp. Couptinr will not center pam
automatically.
2G21
POWER PLANT
ISSl:ED: 8/18/72