Piper COMANCHE PA-24-180 Service Manual page 451

PIPER COMANCHE SERVICE MANUAL
7C-23. Removal Of Turboehrer.
a. Remove the botom cowling.
b. Disconnect air ducu at compresor inlet and outlet When renmving the riht turbocharer unit
disconnect inlet duct u the air plenum and remove plenum from turbochger by looening clamp a
compressor inlet nd removing bolt amching it to rurbochger.
c. Disconnect wste ge conrol cable and remove cable clamp from turbocharger exhaust sack.
d. Disconnec urbochbrger exhaust sck brnce.
e. Remove V band cld ps as turbine inletc ud oudet.
f.
Pull exhaust sck usembly aft and down.
g. Duconnect oil inlet and outlet Lines from turbochager.
h. Remove boltr uaching inboard mount to urbochuger mounting lug.
L Remove nun, wsher und bolt attching top turbochrger mount to engine.
7C-24. Installation Of Turbodhaer.
a. Aycerin tha inboard turbocharger mount is instlled on aft fuel injector mounting studs and
engine smp, and sfetied.
b. Insall oil line fimngs in turbine center housing.
c. Instll top mount on turbocharger and secure with cp screws a d safety wire.
d. Insull blanket on turbine housing and secure with safety wire.
e. Insall urbocharger sembly on engine, insert washer between top mount and engine sump
flange and secure mount to flange with bolt washers and nuts.
f. Loosen V band clamp ataching the two halves of the turbine together. If necesury romre turbine
housing to align the compressor discharge outlet with the comprmsor dischage asembly (air box).
g. Torque the turbocharger center section V band clamp to 3040 inch pounds.
h. Secure trbocharger to the inboard mouning brace with bolt washers and nut. Postion washe as
required on either side of the turbocharger mounting lug to prevent pre-load on the inboard brace when
mounting bolt is torqued.
i.
Connect inle und outlet oil lines to turbocharger.
j. Position inlet and outlet exhaust acks wth gaskets on exhaust turbine housing and secure with V
band clamps. Torque clamps to 55-75 inch pounds.
NOTE
For all "V" band couplings on the exhaust systenm be sure pars are
concentric before tightemng couplings. Coupling will not center parts
automaically.
POWER
PLANT
2G21
ISSUED: 8/18/72