Piper SARATOGA PA-32-301 Maintenance Manual page 596

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
TURBOCHARGER LUBRICATION SYSTEM PRIMING.
Immediately prior to mounting the unit, prime the lubrication system as follows:
1. Invert turbocharger and fill center housing with new clean oil through oil drain.
2. Turn rotating assembly by hand to coat bearings and thrust washer with oil.
3. Coat threads of attaching bolts or studs with high temperature thread lubricant.
4. After installing turbocharger, flush oil through oil inlet line and ensure that line is clean and
unobstructed.
5. Fill engine and oil inlet line with new, clean lubricating oil, and connect line.
6. Connect oil return line.
- NOTE -
If the turbocharger is to be installed on a new or newly overhauled
engine, operate the engine with a separate oil filter in the oil supply
line to the turbocharger during the first hour of operation. This
must be done to ensure that no metal particles are carried from the
engine into the turbocharger lubrication system.
REMOVAL OF TURBOCHARGER. (Refer to Figure 81-1.)
1. Remove the engine cowling. (Refer to Chapter 71.)
2. Remove the turbocharger compressor and turbine assembly by the following procedure:
A. Disconnect the oil supply and return lines from the center section of the turbo.
B. Disconnect the air ducts from the compressor inlet and outlet, and the exhaust system from the
turbine inlet and outlet.
C. Disconnect the tailpipe support bracket at the turbocharger and remove the tailpipe and
wastegate assembly.
D. Remove the bolts that attach the turbocharger to the mounting bracket and remove the
turbocharger assembly.
INSTALLATION OF TURBOCHARGER.
1. Position the turbocharger assembly in the mounting bracket and secure with mounting hardware.
2. Carefully align exhaust system with the turbo inlet.
3. Carefully position the exhaust tailpipe and wastegate assembly to the turbocharger outlet.
4. Install coupling clamp and while tightening the coupling clamp nuts, gently tap around the periphery
of the couplings with a soft mallet while shaking the tailpipe. This will distribute the band tensions evenly.
Continue tightening the clamp nuts until a torque of 40-50 inch pounds is reached on the turbocharger to
tailpipe clamp and 80-90 inch pounds on the bypass coupling. Safety the clamp nuts.
5. Connect the induction tube to the compressor outlet and the induction air filter assembly to the
compressor inlet.
6. Connect the oil supply and return lines to the turbocharger center section.
7. Install the engine cowling. (Refer to Chapter 71.)
81-00-06
Page 81-09
Issued: August 15, 1985
3B19